Answer:
$21Step-by-step explanation:
let the money in her purse be $x
1/3 of the money is 1/3x
Since his father gave him $5 and the total amount became $12
the expression for the total amount would be
12= 1/3x+5
We can now solve for x
12-5= 1/3x
1/3x= 7
cross multiply we have
x= 7*3
x= $21
Therefore the money in joes mother's purse is $21
Which function is most likely graphed on the coordinate plane below? f(x) = 3x – 11 f(x) = –4x + 12 f(x) = 4x + 13 f(x) = –5x – 19
Answer:
D
Step-by-step explanation:
It's D on Enginuity
The graph of the function in the coordinate plane is f(x) = –5x – 19.
What is a Graph?In mathematics, a graph is a visual representation or diagram that shows facts or values in an ordered way. The relationships between two or more items are frequently represented by the points on a graph.
As per the given diagram:
The x intercept of the line = -ve
The y intercept of the line = -ve
For f(x) = 3x - 11
x intercept = +ve
y intercept = -ve
Hence, not possible
For f(x) = -4x + 12
x intercept = +ve
y intercept = +ve
Hence, not possible
For f(x) = 4x + 13
x intercept = -ve
y intercept = +ve
Hence, not possible
For f(x) = -5x - 19
x intercept = -ve
y intercept = -ve
Hence, possible
The function plotted on the coordinate plane is f(x) = –5x – 19.
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simplify 9x+4(x+2)-5
Answer:
13x + 3
Step-by-step explanation:
9x + 4x + 8 -5
13x + 3
Just multiply (x + 2) by 4
and add simply.
I hope now you got it.
which expression is equivalent to the given expression square root of 45
Answer:
[tex]3 \sqrt{5} [/tex]
Step-by-step explanation:
Solve using Surd
[tex] \sqrt{45} = \sqrt{9 \times 5} \\ = \sqrt{ {3}^{2} \times 5 } \\ = 3\sqrt{5} [/tex]
The expression 3√5 will be equivalent to a square root of 45.
What is the arithmetic operator?Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,
Summation = addition of two or more numbers or variable
For example = 2 + 8 + 9
Subtraction = Minus of any two or more numbers with each other called subtraction.
For example = 4 - 8
Division = divide any two numbers or variable called division.
For example 4/8
Multiplication = to multiply any two or more numbers or variables called multiplication.
For example 5 × 7.
Given the expression √(45)
⇒ √(9×5)
⇒ √(3²×5)
⇒ √(3²)√(5)
Since the square root of a square is the same number
So,
⇒ 3√5
Hence "The expression 3√5 will be equivalent to a square root of 45".
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If 7p-4=8 , what is the value of p?
A)7/12
B)7/4
C)12/7
D)4/7
Step-by-step explanation:
7p=8+4
7p=12
p=12/7
the correct answer is option A
7p + 3(-6p + 2) > 7p+9+1
Someone help me
Answer:
p > -0.2222
Step-by-step explanation:
7p + 3(-6p + 2) > 7p + 9 +1
7p + (3*-6p + 3*2) > 7p + 10
7p - 18p + 6 > 7p + 10
-11p - 7p > 10 - 6
-18p > 4
p > 4/-18
p > -0.2222
(01.01)
Evaluate -40 - 5. (1 point)
8
-8
-35
-45
Answer:
Step-by-step explanation:
-40 - 5 = -45
answer is D
Learn with an example
The perimeter of a rectangular deck is 214 feet. It is 42 feet wide. How long is it?
Answer:
65 feet = L
Step-by-step explanation:
set up equation
P = 2L + 2W
plug in W
214 = 2L + 2(42)
multiply
214 = 2L + 84
subtract 84
130 = 2L
divide by 2
65 = L
Which of these points is farthest from the origin?
A. (0,8)
B. (2, 11)
C.(-6, -8)
D. (-12,0)

Answer:
The answer to the picture is 19 square units if I remember correctly.
Step-by-step explanation:
A car is driving at a rate of 3 kilometers per minute. What is the car's speed in meters per hour?
Answer:
180000 Meters per hour
Step-by-step explanation:
3 kilometers × 60 minutes (1 hour) = 180 kilometers per hour and then convert kilometers to meters
Answer:
The car's speed is 180,000 meters per hour.
Step-by-step explanation:
(3 km)/min×(1000 m)/(1 km)×(60 min)/(1 hr)=180,000 m/hr
- If there are 12 inches in a foot, what is 4,096 cubic inches converted to cubic feet? a. 28.44 ft3 c. 2.370 ft b. 341.33 ft3 d. 4.096 ft3
Step-by-step explanation:
2.370.
One cubic foot equals 1728 cubic inches. So, to convert from cubic inches to cubic feet you should divide your cubic inches figure by 1728.
I hope it helps!
which symbol will make the number sentence -5 -- 5 true?
A =
b
Answer: b
Step-by-step explanation:
Which of the following is a solution of x2 + 4x = -8?
O x = -2 - 21
O x = 2 + 21
O x = -4 + 41
O x = 4 - 41
Answer:
[tex]x=2i-2,\:x=-2i-2[/tex]
Step-by-step explanation:
[tex]x^2 + 4x = -8\\\\\mathrm{Solve\:by\:completing\:the\:square}\\\\\mathrm{Write\:equation\:in\:the\:form:\:\:}x^2+2ax+a^2=\left(x+a\right)^2\\\\\mathrm{Solve\:for\:}a,\:2ax=4x:\quad a=2\\\\\mathrm{Add\:}a^2=2^2\mathrm{\:to\:both\:sides}\\\\x^2+4x+2^2=-8+2^2\\\\\mathrm{Simplify\:}-8+2^2:\quad -4\\x^2+4x+2^2=-4\\\\\mathrm{Complete\:the\:square}\\\left(x+2\right)^2=-4\\\\\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}\\[/tex]
[tex]\mathrm{Solve\:}\:x+2=\sqrt{-4}:\quad x=2i-2\\\\\mathrm{Solve\:}\:x+2=-\sqrt{-4}:\quad x=-2i-2\\\\x=2i-2,\:x=-2i-2\\[/tex]
A. 67
B. 47
C. 52
D. 26
Answer:
Step-by-step explanation:
22 - 55 + 4x = 2x + 7
4x - 33 = 2x + 7
2x - 33 = 7
2x = 40
x= 20
22 - 55 + 4(20) = 2(20) + 7
80 - 33 = 40 + 7
47 = 47
answer is B
Answer:
The answer is B
Step-by-step explanation:
express 15x^1/3 y ^1/5 using a radical
Answer:
C
Step-by-step explanation:
[tex]15x^{\frac{1}{3} }y^{\frac{1}{5} }\\\\=15x^{\frac{5*1}{5*3} }y^{\frac{3*1}{3*5} }\\\\=15x^{\frac{5}{15} }y^{\frac{3}{15} }\\\\=15\sqrt[15]{x^{5}y^{3} } \\\\[/tex]
The expression 15x^(1/3) y^(1/5) can be written as 15 * ∛x * ∜y
How to express 15x^(1/3) y^(1/5) using a radical?To express 15x^(1/3) y^(1/5) using a radical, we will start by writing each term with a common base.
Now express x^(1/3) as a radical. We know x^(1/3) is the cube root of x, this is rewritten as ∛x.
Now, we express y^(1/5) as a radical. We know that y^(1/5) is the fifth root of y, so we is rewritten it as ∜y.
Putting it all together, we have:
15x^(1/3) y^(1/5) = 15 * ∛x * ∜y.
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How do I solve this problem?
Ann wants to create a design to decorate her Geometry binder. She reflects part of the design across line p and then reflects the image across line n. Describe a single transformation that moves the part of the design from its starting position to its final position A. rotation of 180° about the origin B. translation along the line p= n C. rotation of 90° about the origin D. reflection across the line
Answer: a
Step-by-step explanation:
Let f(x)=4x^2+13x-12 and g(x)=x+4. Perform the function operation
F•g(x)
Please help!!!
Answer: 4x³+29x²+40x-48
Step-by-step explanation:
To solve f(x)·g(x), you multiply them together.
(4x²+13x-12)(x+4) [distribute by FOIL]
4x³+16x²+13x²+52x-12x-48 [combine like terms]
4x³+29x²+40x-48
Now, we know that f(x)·g(x)=4x³+29x²+40x-48.
Answer: 4x³+29x²+40x-48
Step-by-step explanation:
The product of two functions=f(x)·g(x)=fg(x)
Use FOIL method to simplify expression.
FirstOuterInner Laterf(x)·g(x)
=(4x²+13x-12)·(x+4)
=4x³+16x²+13x²+52x-12x-48
=4x³+29x²+40x-48
plz help ASAP I can't figure out
Answer:
x = ±√17
Step-by-step explanation:
Isolate the variable, x. Note the equal sign, what you do to one side of the equation, you do to the other.
Also note that the x has a power of 2. To isolate the x, simply root both sides of the equation.
x² = 17 ; √x² = √17 ; x = ±√17
~
whatssssssssssssss divied 3/7 and 2/3
Answer:
9/14
Step-by-step explanation:
3/7÷2/3=?
Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.
Take the reciprocal of the second fraction by flipping the numerator and denominator and changing the operation to multiplication. Then the equation becomes
3/7×3/2=?
For fraction multiplication, multiply the numerators and then multiply the denominators to get
3×3
7×2= 914
This fraction cannot be reduced.
Therefore:
3/7÷2/3=9/14
Answer:
9/14
Step-by-step explanation:
3/7 ÷ 2/3= 9/14
To divide a fraction, you have to flip the second fraction and multiply.
3/7 × 3/2 = 9/14
9/14 is in simplest form.
Cans of peas are 3 for $1.29. How much would one can of peas and a bag of chips priced at $2.19 cost all together?
Answer:
It would be 2.62
Step-by-step explanation:
Solve the following equations, show all work. Leave your answers in reduced improper fraction form .
X+7/6=2x-7/6
[tex] \huge \purple {\tt {x + \frac{7}{6} = 2x - \frac{7}{6}}} [/tex]
To Find:[tex] \large {\tt {The \: answer \: in \: reduced}} [/tex]
[tex] \large {\tt { improper \: fraction \: form.}} [/tex]
Solution:[tex] \huge \pink {\tt {x + \frac{7}{6} = 2x - \frac{7}{6}}} [/tex]
[tex] \huge \blue {\tt {or, \: x - 2x = - \frac{7}{6} - \frac{7}{6}}} [/tex]
[tex] \huge \red {\tt {or, \: - x = \frac{ - 14}{6} = \frac{ - 7}{3}}} [/tex]
[tex] \huge \green {\tt {or, \: x = \frac{7}{3}}} [/tex]
Answer:[tex] \huge \orange {\tt {x = \frac{7}{3}}} [/tex]
Please help me out A,B,C OR D?⚠️
Answer:
what r u tryna figure out
Answer:
B
Step-by-step explanation:
II stands for 2 in roman numerals
18/5 turns into 3 3/5
4.66666666666666 is just what it is
square root of 30 is in between 5 and 6 so yeah
A cupcake shop earns $950 a day. The total amount of earning varies directly with the number of days. Find the total earning the cupcake shop earns in 5 days.
Answer:
4750
Step-by-step explanation:
950x
950× 5
4750
varying directly with number of days
Hey! This is my first question. 35 points, it's not complicated. I'm trying to get my grade up and need to have this explained.
Answer: You should try copying and pasting the question onto google. Someone may have answered the question or something similar on another website.
A test score of 48.4 on a test having a mean of 66 and a standard deviation of 11. Find the z-score corresponding to the given value and use the z-score ti determine whether the value is significant.
Answer:
It is 4
Step-by-step explanation:
If f(x) = 2x - 3, find the following values: a) f(0)= b) f(-2) = c) f(5)=
[tex]f(0) = 2 \cdot 0 - 3 = 0 - 3 = -3\\f(-2) = 2 \cdot (-2) - 3 = -4 - 3 = -7\\f(5) = 2 \cdot 5 - 3 = 10 - 3 = 7[/tex]
A square has a perimeter of 24x² +16. What is
the length of each side of the square
Answer:
6x² + 4
Step-by-step explanation:
The 4 sides of a square are equal in measure.
Divide the perimeter by 4 for length of side, that is
side = [tex]\frac{24x^2+16}{4}[/tex] = [tex]\frac{24x^2}{4}[/tex] + [tex]\frac{16}{4}[/tex] = 6x² + 4
The answer is 2.95 (correct to 2 decimal places)
List 5 numbers that could have been rounded up to give 2.95
Answer:
2.947
2.946
2.948
2.949
2.945
Step-by-step explanation:
all decimal points are 5 or greater so you round up.
Answer:2.9477843782957987827878
Step-by-step explanation:
Given the three points (0,3), (4,15), (5,33), determine the equation of the parabola they represent. State the direction the parabola opens. A) The equation is f(x)=3x^2−33/4x+3, and the parabola opens upward B)The equation is f(x)=−3x^2+9x+3, and the parabola opens downward C)The equation is f(x)=−4x^2−13x+3, and the parabola opens downward. D)The equation is f(x)=3x^2−9x+3, and the parabola opens upward.
Answer:
D)The equation is f(x)=3x^2−9x+3, and the parabola opens upward.
What is the slope of the line that passes through the points:
(6,-4), (15,-4)
Answer:
The slope is 0
Line is y= -4
Step-by-step explanation: