Answer:
65
Step-by-step explanation:
cups per pizza- 13
for 5 pizza- 13×5= 65
think of it this way you eat 2 slices of pizza in an hour, how many will you eat in 6 hours? 2x6 = 12
11. If using the method of completing the square to solve
the quadratic equation x² + 13x - 32 = 0, which
number would have to be added to "complete the square"?
The number that needs to be added to complete the square is 169/4
The number to be added to "complete the square"?To complete the square for the quadratic equation x² + 13x - 32 = 0, we need to add (13/2)² = 169/4 to both sides.
This is because the coefficient of x in the quadratic term is 13, so half of that is 6.5, and the square of that is 42.25, which simplifies to 169/4.
The equation will then become:
x² + 13x - 32 + 169/4 = 0 + 169/4
So the number that needs to be added to complete the square is 169/4, or 42.25.
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Given a graph for the transformation of f(x) in the format g(x) = f(x) + k, determine the k value. Two parabolas open up with f of x passing through negative 3 comma negative 3 and g of x passing through negative 3 comma 1 k = −3 k = 1 k = 4 k = 5
The value of k in the given graph is 4
Explain the term graph
A graph is a visual representation of data that displays the relationship between two or more variables. It consists of a set of points or vertices connected by lines or curves that represent the data points. Graphs are used to analyze and interpret data and to communicate information effectively in various fields, including mathematics, science, and business.
According to the given information
We are given that g(x) = f(x) + k, where f(x) and g(x) are two parabolas that open up and pass through the point (-3, -3) and (-3, 1), respectively.
Since both parabolas pass through the point (-3, -3), we know that:
f(-3) = -3
g(-3) = -3 + k = 1
Solving for k, we get:
k = 1 - (-3) = 4
Therefore, the value of k is 4.
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Question 2(Multiple Choice Worth 4 points)
(05.02, 05.03 MC)
Solve the system of equations.
2x + 4y = 12
3x +y = 3
(0,3)
○(1,0)
(2, 2)
(2,-3)
Question 3(Multiple Choice Worth 4 points)
Answer: (0,3)
x=0 ; y=3
Step-by-step explanation:
To solve the system of equations:
2x + 4y = 12
3x + y = 3
We can use the method of substitution or elimination. Here we will use the substitution method:
From Equation 2, we can isolate y:
y = 3 - 3x
We can substitute this expression for y into Equation 1:
2x + 4(3 - 3x) = 12
Simplifying and solving for x:
2x + 12 - 12x = 12
-10x = 0
x = 0
Now that we have found the value of x, we can substitute it back into either Equation 1 or Equation 2 to solve for y. Here we will use Equation 2:
3(0) + y = 3
y = 3
Therefore, the solution to the system of equations is (x, y) = (0, 3).
This means that the point (0, 3) is the intersection point of the two lines represented by the given equations. To verify this, we can substitute the values of x and y into both equations and see if they are true.
PLEASE I NEED HELP THIS DEPENDS ON WETHER I STAY IN MY SOFTBALL TEAM
Answer:
Circumference/Diameter = π
If the diameter is 2, then the circumference is 2π.
If the diameter is 6, then the circumference is 6π.
Find the indefinite integral.
The indefinite integral, given the integral can be found to be √14x + C.
How to find the indefinite integral ?An indefinite integral is an antiderivative of a function. More specifically, if f(x) is a function, then an antiderivative of f(x) is a function F(x) such that F'(x) = f(x), where F'(x) represents the derivative of F(x) with respect to x.
To find the indefinite integral of a constant (in this case, √14) with respect to x, simply multiply the constant by x and add a constant of integration (C):
∫√14 dx = √14 × ∫dx = √14 × x + C
So, the indefinite integral of √14 with respect to x is:
√14x + C
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Determine the measurement of KL.
KL=8.58
KL=9.36
KL=10.13
KL=9.84
Therefore , the solution of the given problem of angles comes out to be KL has a measurement of 19.49.
What does an angle mean?The largest and smallest walls of a skew are found at the intersection of the pathways connecting its ends. Two pathways could meet at a crossroads. Another result of two entities interacting is an angle. More than anything else, they resemble dihedral shapes. Two line beams can be arranged in a variety of ways between their endpoints to produce a two-dimensional curve.
Here,
It looks to be a right-angled triangle with the sides identified as KL, KM, and LM based on the photograph provided. The measurements are as follows:
=> KL = 8.58
=> KM = 9.36
=> LM = 10.13
=> KM + LM = KL
Since KM and LM are the two sides that make up KL, we may sum them to find the measurement of KL.
=> KM + LM = 9.36 + 10.13 = 19.49
KL thus has a measurement of 19.49.
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An inductor of l = 250 is subjected to a voltage v(t) = 8 e-4t V:
A. Knowing that, integrate both sides to determine the current i(t). You may assume that the initial current is zero.
B. Given that the absorbed power is, determine the total stored energy.
A. The current flowing through the inductor at time T is given by i(T) = (2/250) * (1 -[tex]e^{-4t}[/tex])A B. The total stored energy in the inductor from t = 0 to t = T is given by W(T) = 2( [tex]e^{-4t}-e^{-8t}[/tex]) J.
Describe Integration?Finding the region beneath a curve or the entire accumulation of a quantity over a given period is the goal of the mathematical procedure known as integration. It is the inverse operation of differentiation and is frequently employed in a number of scientific, mathematical, and engineering disciplines.
Finding an antiderivative—a function that, when separated from the original function being integrated—is a necessary step in the integration process. The symbol for this antiderivative is frequently ∫f(x) dx, where f(x) is the function being integrated and dx denotes an incredibly minute change in x. The outcome of the integration is a family of functions that differ from one another by a constant quantity called the integration constant.
A. We know that v(t) = L di(t)/dt, where L is the inductance of the inductor and i(t) is the current flowing through it at time t. We can rearrange this equation to get di(t)/dt = v(t)/L, and then integrate both sides with respect to time from t = 0 to t = T to get:
∫[0, T] di(t)/dt dt = ∫[0, T] v(t)/L dt
After integrating the left side, we get:
i(T) - i(0)
This becomes i(T) as the starting current is zero. When the right side is integrated, we get:
(1/L) ∫[0, T] v(t) dt
When we replace the given phrase for v(t), we obtain:
(1/L) ∫[0, T] 8 -[tex]e^{-4t}[/tex] dt
When we incorporate this expression, we get:
(1/L) * (-2 [tex]e^{-4t}[/tex] ) |[0, T]
When the integration and simplification limitations are swapped out, we obtain:
i(T) = (2/L) * (1 - [tex]e^{-4t}[/tex] ) A
As a result, the current through the inductor at time T can be calculated as follows:
i(T) = (2/250) * (1 - [tex]e^{-4t}[/tex] ) A
B. As of time T, the inductor's total stored energy is given by:
W(T) = (1/2) L i²(T)
We obtain the following by substituting the expression for i(T) from section A:
W(T) = (1/2) * 250 * [(2/250) * (1 - [tex]e^{-4t}[/tex] )]²
Simplifying, we get:
W(T) = 2.5 * [(1 - [tex]e^{-4t}[/tex] )²] J
We integrate this expression with regard to time from t = 0 to t = T to determine the total energy stored from t = 0 to t = T:
W(T) = ∫[0, T] 2.5 * [(1 - [tex]e^{-4t}[/tex] )²] dt
We can rewrite this integral as follows by replacing the supplied expression for p(t):
W(T) = (1/8) ∫[0, T] p(t) dt
Integrating p(t) in relation to time results in:
p(t) = 64 ( [tex]e^{-4t}-e^{-8t}[/tex])
∫[0, T] p(t) dt = 16 ( [tex]e^{-4t}-e^{-8t}[/tex]) J.
When we use this expression to solve for W(T), we obtain:
W(T) = 1/8 * 16 ( [tex]e^{-4t}-e^{-8t}[/tex]) J.
Simplifying, we get:
W(T) = 2 ( [tex]e^{-4t}-e^{-8t}[/tex]) J.
As a result, the formula for the total energy stored in the inductor from t = 0 to t = T is as follows:
W(T) = 2 ( [tex]e^{-4t}-e^{-8t}[/tex]) J.
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Can you help with me with question 3.
answer:
17%
I hope this helps
12
tanQ =
15
9
Help answer !!
The value of tanQ is 4/3
What is trigonometric ratio?
Trigonometric Ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle.
The values of the functions are expressed as follows;
sin(tetha) = opp/hyp
cos(tetha) = adj/hyp
tan(tetha) = opp/adj
The opposite in the triangle is 12 and the adjascent is 9 while th hypotenuse is 15.
therefore , since tan(tetha) = opp/adj
then, tanQ = 12/9
simplifying the value to the nearest term,
tanQ = 4/3
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Apples $1.20 per pound how much would it cost for 2.5 pounds of apples?
Answer: $3.00
Step-by-step explanation:
To figure this out, we can use the following formula:
[tex]\textsf{Cost per pound x number of pounds we want to buy}[/tex]
In this case, we want to buy 2.5 pounds of apples, so we can multiply 2.5 by $1.20 to get the total cost:
[tex] \textsf{2.5 x 1.20 = 3} [/tex]
So, 2.5 pounds of apples will cost $3.00
calling EXPERTS! Please help with these 3 questions! Please show full solutions AND ALL CALCULATIONS!!! THANK YOU! QUESTIONS ATTACHED BELOW!
Answer:
2. 139π/90 radians ≈ 4.852
3. -(9√5 +8√7)/77
4. 2+√3
Step-by-step explanation:
You want exact answers involving various trig identities and angle sum formulas.
2. RadiansThere are π radians in 180°, the number of radians in 278° is ...
278°(π/180°) = (278/180)π
278° = (139/90)π radians ≈ 4.852 radians
3. CosineThe cosine of the sum of angles is ...
cos(x +y) = cos(x)cos(y) -sin(x)sin(y)
The relationship between sine and cosine is ...
cos(x) = ±√(1 -sin(x)²)
sin(x) = ±√(1 -cos(x)²)
The signs will depend on the quadrant of the angle.
To use the angle sum relation, we need the sine of the angle whose cosine is given, and vice versa.
sin(arccos(-2/7)) = -√(1 -(-2/7)²) = -(√45)/7 = (-3/7)√5 . . . . in QIII
cos(arcsin(-3/11)) = √(1 -(-3/11)²) = (√112)/11 = (4/11)√7 . . . . in QIV
The cosine of the sum of the angles is then ...
cos(arccos(-2/7) +arcsin(-3/11)) = (-2/7)(4√7/11) -(-3√5)/7·(-3/11)
= -8√7/77 -9√5/77
cos(x +y) = -(9√5 +8√7)/77
4. TangentThe formula for the tangent of the sum of angles is ...
tan(x +y) = (tan(x) +tan(y))/(1 -tan(x)tan(y))
We know that tan(π/4) = 1 and tan(π/6) = 1/√3, so the tangent of the sum of the angles is ...
tan(π/4 +π/6) = (1 +1/√3)/(1 -(1·1/√3)) = (√3 +1)/(√3 -1) = (√3 +1)²/2
tan(π/4 +π/6) = 2 +√3
__
Additional comment
A suitable calculator can be very handy computing and/or checking your results.
2) 278° to Radians = 4.85202
3) the exact value of cos (x+ y) is -0.0914
4) the exact value of the expression is 3.73
How is this so ?The formula ofr conversion from degree to radian is
2) 278° × π/180 = 4.852rad
3) in the above given expressions, Sin(x) is negative.
Using Pythagorean rule, we can state:
sin(x ) = √(1 - cos^2(x)) =
√(1 - (-2/7)²)
= -3√(3)/7
Also,
given that cos( y) is positive, we c n also use the Pythagorean idetity
cos (y) = √(1 - sin ²(y) )
= √(1 - (-3/1 1)²)
= 8√(2)/11
substituting into cos (x + y)
cos(x+y) = cos( x)cos (y ) - sin (x) sin(y)
= (-2/7)( 8 √(2)/11) - (-3√(3)/7) ( -3/11)
= -1 6 √(2) /77 + 9√( 3)/ 77
= -0.09141506142
The exact value is approximately -0.0914
3)
Using the formula for tangent of sum of angles we say
tan( ( π/4) + (π/6) ) = (tan ( π / 4) + tan (π/6))/(1 - tan ( π/4) tan( π/6))
Sutstituting ....
tan (( π/4) + ( π/6) ) = (1 + √ 3/3)/( 1 - √ 3 /3 )
tan( (π/ 4) + (π /6 )) = (1 + √3/ 3) (1 + √3/3 )]/ [(1 - √3/ 3)(1 + √3/3)]
Simplifying
tan ( (π /4) + ( π/6) ) = ( 2 + √3 )/ ( 2 - √ 3)
This is the exact value of tan((π/4) + (π/6)) or 3.73
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is y = 2x squared - 4x + 10 a function
y is a function of x.
Define function?A mathematical relationship between an input (x) and an output (y) where each input has exactly one output is known as a function. There are no multiple possibilities of y for a single value of x in the preceding equation, which expresses y as a combination of x², x, and a constant term. As a result, the equation meets the criteria for a function.
Yes, y = 2x² - 4x + 10 is a function.
A function is a mathematical rule that assigns to each input (x-value) exactly one output (y-value). In the given equation, for any value of x, we can calculate the corresponding value of y using the given equation. Therefore, y is a function of x.
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or 1/2 x + 3/4 - 5/8 x - 7/8 and 1/8 ( x + 1 ( equivalent expressions show your work
To simplify the expression 1/2 x + 3/4 - 5/8 x - 7/8 + 1/8 (x + 1), we'll need to combine like terms.
First, let's distribute the 1/8 to the expression in parentheses:
1/2 x + 3/4 - 5/8 x - 7/8 + 1/8 x + 1/8
Next, we can combine like terms:
(1/2 - 5/8 + 1/8) x + (3/4 - 7/8 + 1/8)
Simplifying the coefficients of x, we get:
(1/2 - 4/8 + 1/8) x + (3/4 - 6/8 + 1/8)
(1/2 - 1/8) x + (3/4 - 5/8)
(4/8 - 1/8) x + (6/8 - 5/8)
3/8 x + 1/8
Therefore, the expression 1/2 x + 3/4 - 5/8 x - 7/8 + 1/8 (x + 1) simplifies to the equivalent expression 3/8 x + 1/8.
I was a bit confused about what you were asking, please correct me if I am wrong!
I need help with this!
The blanks when completed are
Longest side in B = 12Every side length in A grew by a factor of 3A length in B/A corresponding length in A = 3The size of the angles remain unchangedCompleting the blanks in the dilationIn a scale drawing, the scale factor represents the ratio of the size of an object in the drawing to the size of the corresponding object in real life.
In the given scale drawing, we have
Longest side in B = 12
So, the scale factor is
scale factor = size of object in drawing / size of corresponding object
This gives
scale factor = 12 / 4
scale factor = 3
This means that
Every side length in A grew by a factor of 3
Using the scale ratio formula, we have
A length in B/A corresponding length in A = 3
Lastly, the size of the angles remain unchanged
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Directions: Compute the number of board feet of lumber with the following dimensions.
1. 4"x 8"x 12"
2. 3"x 2"x 10"
3. 2" x 4" x 12"
4. 2" x 2" x 8"
5. 4" x 4" x 10"
Answer:
4.) 32 answer
Step-by-step explanation:
2×2 is 4
4× 8 is 32
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The logarithmic form of the equation (1/7)³ = 1/343 is given as follows:
[tex]\log_3{\left(\frac{1}{343}\right)} = \frac{1}{7}[/tex]
How to represent a logarithm?A logarithm is a mathematical function that represents the power to which a given base must be raised in order to obtain a given number. Logarithms are often used to simplify calculations involving very large or very small numbers.
In this problem, we raise 1/7 to the third power to obtain the number 1/343, hence the logarithm of base 3 of the number 1/343 is of 1/7, and then the expression is given as follows:
[tex]\log_3{\left(\frac{1}{343}\right)} = \frac{1}{7}[/tex]
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PLEASE HELP
IM CONFUSED
the correct answers are E(-4, 5) and F(3, 2). According to given probabilities condition
How to solve the question?
To find the coordinates of Checkpoints E and F, we need to first understand what is meant by "located at CD's location in a 180° rotation of the course."
A 180° rotation means that we flip the course upside down, with the line segment connecting Checkpoints C and D acting as the axis of rotation. This means that Checkpoints E and F will be on the same line as CD, with E being the reflection of C and F being the reflection of D across the line CD.
To find the coordinates of E, we reflect C across the line CD. To do this, we first find the slope of the line CD:
slope = (2 - 5) / (-3 - (-4)) = -3
The midpoint of CD is:
midpoint = ((-3 + (-4))/2 , (2 + 5)/2) = (-3.5, 3.5)
The line perpendicular to CD passing through the midpoint has slope -1/(-3) = 1/3. Using point-slope form, we can find the equation of this line:
y - 3.5 = (1/3)(x + 3.5)
Simplifying, we get:
y = (1/3)x + 4
To reflect C across CD, we can find the intersection point of this line with the line passing through C and CD. This line has slope -3 and passes through (-4, 5). Using point-slope form, we can find its equation:
y - 5 = (-3)(x + 4)
Simplifying, we get:
y = -3x - 7
Setting these two equations equal to each other, we get:
(1/3)x + 4 = -3x - 7
Solving for x, we get:
x = -4
Substituting this value back into either equation, we get:
y = 5
Therefore, the coordinates of Checkpoint E are (-4, 5).
To find the coordinates of F, we reflect D across CD. We can use a similar method as above to find the line passing through D and CD:
slope = (2 - 5) / (-3 - (-4)) = -3
y - 2 = (-3)(x + 3)
Simplifying, we get:
y = -3x - 7
To reflect D, we find the intersection point of this line with the line perpendicular to CD passing through the midpoint:
y - 3.5 = (1/3)(x - (-3.5))
Simplifying, we get:
y = (1/3)x + 4
Setting these two equations equal to each other, we get:
(1/3)x + 4 = -3x - 7
Solving for x, we get:
x = 3
Substituting this value back into either equation, we get:
y = 2
Therefore, the coordinates of Checkpoint F are (3, 2).
So the correct answers are E(-4, 5) and F(3, 2).
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Find the length of FG.
The length of FG chord is 5 units.
What bout chord?
A chord is a line segment that joins two points on the circumference of a circle. More specifically, a chord is a straight line that intersects a circle at two points, and the segment of the line between these two points is called a chord.
The length of a chord can be calculated using the Pythagorean theorem, given the radius of the circle and the distance between the two points on the circumference. The length of a chord is always less than or equal to the diameter of the circle.
Chords have various applications in geometry, trigonometry, and calculus. For example, in trigonometry, the chord function is defined as the ratio of the length of a chord to the radius of the circle. In calculus, chords are used in the definition of the derivative, which is the slope of the tangent line to a curve at a given point.
According to the given information:
2(x + 2 )= ( 5 x - 5 )
2x + 4 = 5x -5
9 = 3x
3 = x
The length of FG is = x+2 = 3+2 = 5 units
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The length of FG chord is 5 units.
What bout chord?
A chord is a line segment that joins two points on the circumference of a circle. More specifically, a chord is a straight line that intersects a circle at two points, and the segment of the line between these two points is called a chord.
The length of a chord can be calculated using the Pythagorean theorem, given the radius of the circle and the distance between the two points on the circumference. The length of a chord is always less than or equal to the diameter of the circle.
Chords have various applications in geometry, trigonometry, and calculus. For example, in trigonometry, the chord function is defined as the ratio of the length of a chord to the radius of the circle. In calculus, chords are used in the definition of the derivative, which is the slope of the tangent line to a curve at a given point.
According to the given information:
2(x + 2 )= ( 5 x - 5 )
2x + 4 = 5x -5
9 = 3x
3 = x
The length of FG is = x+2 = 3+2 = 5 units
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Given: △XYZ
and AY←→
is an auxiliary line that is parallel to XZ←→
Prove: The sum of the interior angles in △XYZ
is 180°
The answers are:
[tex]m \angle1+ m\angle2 + m\angle3=180^o[/tex] is the sum of interior angles in a triangle.
[tex]m \angle1+ m\angle5 = m\angle AYX[/tex] is Definition of parallel lines.
[tex]m \angle AYX+m\angle 4=180^o[/tex] Definition of a straight angle
[tex]m\angle5=m\angle2[/tex] is Substitution
[tex]m \angle1+ m\angle5 + m\angle4=m \angle AYX+m\angle 4[/tex] Substitution
Describe Angles?An angle in geometry is the measurement of the amount of rotation that occurs between two lines, rays, or line segments that have a shared endpoint, or vertex. Angles are expressed in terms of degrees, radians, or other angular measuring units.
A protractor, a tool with a semicircular or circular scale and degree markings, can be used to measure angles. Angles may also be labelled using symbols, such as ∠ABC or ∠PQR, in which the letter in the middle of the symbol designates the vertex of the angle.
An auxiliary line that is parallel to XZ given is the triangle formed by XYZ and AY.
[tex]m\angle 1+m\angle 2+m\angle3=180^o[/tex] Definition of the sum of interior angles in a triangle
[tex]m\angle1=m\angle AYX[/tex] Corresponding angles are congruent (alternate interior angles)
[tex]m \angle 2 = m \angle 4[/tex] Corresponding angles are congruent (alternate interior angles)
[tex]m \angle AYX + m \angle 4 = 180^o[/tex] Definition of a straight angle
[tex]m \angle 1 + m \angle 5 = m \angle AYX[/tex] Definition of parallel lines
[tex]m \angle 5 = m \angle 2[/tex] Substitution
[tex]m \angle 1 + m \angle 2 + m \angle 3 = m \angle 1 + m \angle 5 + m \angle 4[/tex] Substitution
[tex]m \angle 1 + m \angle 5 + m \angle 4 = m \angle AYX + m \angle 4[/tex] Substitution
[tex]m \angle 1 + m \angle 2 + m \angle 3 = m \angle AYX + m \angle 4[/tex] Transitive property of equality
[tex]m \angle 1 + m \angle 2 + m \angle 3 = 180^o[/tex] Substitution
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The radius of a circle is 13 m. Find its circumference in terms of π.
Answer:
26π
Step-by-step explanation:
radius=13
double radius to find diameter
diameter=26
equation for circumference= π×d
circumference= 26π
Please help me! Thank You So Much in Advance!!!!!!!
The ratio between the number of people who do not enjoy reading and the number of people who do not enjoy playing videogames is given as follows:
3 to 1.
How to obtain the ratio between two amounts?The ratio between two amounts a and b is given as follows:
a to b.
The amounts for this problem are given as follows:
Do not enjoy reading: 8 + 1 = 9.Do not enjoy playing videogames: 2 + 1 = 3.Hence the ratio is of:
9/3 = 3/1 = 3 to 1.
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Question 1 (1 point)
Find the area of the figure. Round to the nearest tenth if necessary.
21 m
area =
33 m
21 m
Blank 1:
Answer:
691m^2
Step-by-step explanation:
This one is simpler than it looks. If you imagine the shape as a rectangle and two triangles, then move the triangle on the left over to the one on the right, the shape becomes a normal rectangle. Simply solve like your everyday quadrilateral.
area = base × height
a = 21m × 33m
a = 691m^2
Please help me. Giving Brainliest to whoever answers ALL of them!!!
Answer:
First problem:
The correct pairs are 16 and 30, 26 and 38, and 22 and 34.
16 = 2 × 2 × 2 × 2, 30 = 2 × 3 = 5
26 = 2 × 13, 38 = 2 × 19
12 = 2 × 2 × 3, 28 = 2 × 2 × 7
22 = 2 × 11, 34 = 2 × 17
24 = 2 × 2 × 2 × 3,
32 = 2 × 2 × 2 × 2 × 2
gcf(16, 30) = gcf(26, 38) =
gcf(22, 34) = 2
gcf(12, 28) = 4
gcf(24, 32) = 8
Second problem:
f(x) = 3x - 5
f(2) = 3(2) - 5 = 6 - 5 = 1
f(3) = 3(3) - 5 = 9 - 5 = 4
f(4) = 3(4) - 5 = 12 - 5 = 7
f(5) = 3(5) - 5 = 15 - 5 = 10
5.085 is the correct answer
Answer: x ≈ 5.085
Step-by-step explanation:
We will utilize logarithms to help us solve.
Given:
[tex]\displaystyle 4^{x-3}=18[/tex]
The logarithm of both sides of the equation:
[tex]\displaystyle log(4^{x-3})=log(18)[/tex]
Logarithm power property:
(x - 3)log(4) = log(18)
Divide both sides of the equation by log(4):
x - 3 = [tex]\frac{log(18)}{log(4)}[/tex]
Add 3 to both sides of the equation:
x = [tex]\frac{log(18)}{log(4)}[/tex] + 3
Compute:
x ≈ 5.085
Susan Marciano invested part of her $10,000 bonus in a fund that paid a 9% profit and invested the rest in stock that suffered a 3% loss. Find the amount of each investment if her overall net profit was $540.
Susan invested $7000 in the fund that paid a 9% profit, and the remaining (10,000 - 7000) = $3000 in the stock that suffered a 3% loss.
How can we find the amount of each investment?Let's assume that Susan invested x dollars in the fund that paid a 9% profit, and the remaining (10,000 - x) dollars in the stock that suffered a 3% loss.
The net profit from the investment in the fund would be 9% of x, or 0.09x dollars.
The net loss from the investment in the stock would be 3% of (10,000 - x), or 0.03(10,000 - x) dollars.
Given that her overall net profit was $540, we can write the equation:
0.09x - 0.03(10,000 - x) = 540
Now let's solve for x:
0.09x - 0.03(10,000 - x) = 540
0.09x - 300 + 0.03x = 540
0.12x = 540 + 300
0.12x = 840
x = 840 / 0.12
x = 7000
So, Susan invested $7000 in the fund that paid a 9% profit, and the remaining (10,000 - 7000) = $3000 in the stock that suffered a 3% loss.
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find the surface area of the square pyramid below
The surface area of the square base pyramid is 132 cm².
How to find the surface area of the square pyramid?The surface area of the square pyramid can be found as follows:
A square pyramid is a pyramid that has its base as square.
Therefore,
surface area of the square pyramid = base area + 2al
where
a = sides of the basel = height of the pyramidTherefore,
surface area of the square pyramid = 6² + 2 × 6 × 8
surface area of the square pyramid = 36 + 96
surface area of the square pyramid = 132 cm²
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James four year old brother is trying to arrange black and yellow blocks in rows. He has 56 yellow blocks and 120 black blocks. He wants to arrange them in rows so that there are either only yellow or only black blocks in each row. He also wants to arrange them so that each row has the same number of blocks. What is the least number of rows he can make?
Answer: 5
Step-by-step explanation:
the total number of rows will be 15 + 7 = 22 rows. This is the least number of rows that James' brother can make while arranging the blocks in rows such that each row has the same number of blocks and contains only one color.
How to solve the question?
To find the least number of rows, we need to determine the greatest common divisor (GCD) of 56 and 120, since each row must have the same number of blocks. We can use the Euclidean algorithm to find the GCD:
120 = 2 x 56 + 8
56 = 7 x 8 + 0
Therefore, the GCD of 56 and 120 is 8. This means that each row must have 8 blocks, and there will be a total of (56+120) = 176 blocks to be arranged.
Since each row can have either only yellow or only black blocks, we need to determine which color will have the greater number of rows. To do this, we can divide the total number of blocks by the number of blocks in each row:
Yellow blocks:
Number of rows = 56 ÷ 8 = 7 rows
Black blocks:
Number of rows = 120 ÷ 8 = 15 rows
Since there are more black blocks, we will use 15 rows of black blocks. Each row will have 8 blocks, so there will be a total of (15 x 8) = 120 black blocks.
We can then use the remaining 56 yellow blocks to create rows of only yellow blocks. Each row will have 8 blocks, so there will be a total of (56 ÷ 8) = 7 yellow rows.
Therefore, the total number of rows will be 15 + 7 = 22 rows. This is the least number of rows that James' brother can make while arranging the blocks in rows such that each row has the same number of blocks and contains only one color
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If f(x)=⎧⎩⎨⎪⎪2x−3x2x+5ifififx≤−4−4
?
A. 25
B. 7
C. -4
D. 10
The function (5) is 10 given that f(x) = x + 5 if x ≥ 0
How do we solve for the f(5) given the function rule?To solve for f(5), we have to look at the function rule that says f(x) = x + 5 if x ≥ 0. Following this rule we say f(x) = 5 + 5 = 10. The number 10 is greater than 0 which make it valid.
All other rule does not apply to finding f(5).
The above answer is in response to the full question below
if f(x) = { 2x−3 if x ≤ -4
{ x² If -4 < x < 0
{ x + 5 if x ≥ 0
What is f(5)?
A. 25
B. 7
C. -4
D. 10
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Determine if the function is linear or exponential
Answer:
linear
Step-by-step explanation:
function declines at a constant rate of 1/2x with a y-intercept of 20 giving the equation y= 1/2x + 20
The volume of a rectangular prism is 5058
50
5
8
cubic inches.
The dimensions are given below.
What is the missing value in the table?
The missing value in the table include the following: B. 4 1/2 in.
How to calculate the volume of a rectangular prism?In Mathematics and Geometry, the volume of a rectangular prism can be calculated by using the following formula:
Volume of a rectangular prism = L × W × H
Where:
L represents the length of a rectangular prism.W represents the width of a rectangular prism.H represents the height of a rectangular prism.By substituting the given dimensions (parameters) into the formula for the volume of a rectangular prism, we have;
50 5/8 = 5 × W × 2 1/4
Width, W = 4 1/2 inches.
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Complete Question:
The volume of a rectangular prism is 50 5/8 cubic inches.
The dimensions are given below.
What is the missing value in the table?
Length Width Height
5 in. 214 in.
A. 79in.
B. 412in.
C. 134in.
D. 1018in.