Answer:
-2
Step-by-step explanation:
slope form: y2-y1/x2-x1
points: x1, y1 (2,7) and x2,y2 (-4,19)
substitute the points into the form: 19-7/-4-2
simplify: 12/-6 = -2
Which statement is true regarding the graphed functions?
9129
2
10-
19642
Of(0) = g(0)
Of(-2) = g(-2)
Of(0) = g(-2)
Of(-2) = g(0)
--6-5-4-3-2-1₂
2
74902
S
-6
-8
-10-
-12+
2 3 4 5 6 x
f(x)
Answer: The answer is -5559
Step-by-step explanation:
Find the length of the sides of the triangle ABC if the perimeter of the triangle is 33 inches.
The length of the sides of the triangle is 11 inches.
Triangle:
Triangle is defined as the three-sided polygon that consists of three edges and three vertices
Given,
If the perimeter of the triangle is 33 inches, then we have to find the sides of the triangle.
Let x be the sides of the triangle, we know that the triangle has 3 sides.
And lest us consider this one as equilateral triangle.
So, the formula for perimeter is,
Perimeter = 3 x sides
Here we know the value of perimeter then the value of the sides are,
33 = 3 x sides
sides = 11
So, the value of the sides is 11.
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Ricardo can complete 4 laps around a track in 10 minutes. Create a graph that has a slope that represents the
number of laps Ricardo can run per minute.
Select two points on the coordinate grid. A line will connect the points.
HELP !!
The graph is attached below.
The number of laps completed by Ricardo in 10 minutes is 4.The number of laps completed by Ricardo in 1 minute is 4/10.Thus, slope is 0.4.We can form a linear function.The function "y" equals 0.4x.We have to graph the function.In mathematics, a function is an expression, rule, or law that establishes the relationship between an independent variable and a dependent variable. In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.y = 0.4xNow, we can get several pairs of coordinates that satisfy the above linear function.We plot the points on the graph and join them.We can see that the given function is an equation of a straight line that has a positive slope of magnitude 0.4 and passes through origin.To learn more about functions, visit :
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A center pivot irrigation system provides water to a sector shaped field, find the area of the field if 0=140 degrees and r= 40 yd
The area of the sector is approximately 1954.77 square yards.
A circular sector, also known as a circle sector or a disc sector (symbol:), is a piece of a disc (a closed region bordered by a circle) encompassed by two radii and an arc. The smaller area is known as the minor sector, and the bigger is known as the major sector.
Any point on the circle outside of the sector can be connected to the arc's endpoints to produce half of the central angle.
We know that the area of a circle is πr² and the area of the sector of a circle with angle θ is given by θ/360 πr² .
Area of the sector
= 140°/360° × π × 40²
= 1954.7687... square yards.
≈ 1954.77 square yards.
Therefore the area of the sector is approximately 1452.113 square yards.
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The profit from the expenditure of x thousand dollars on advertising is given by P(x)=930+15x-4x^2.
Find the marginal profit when the expenditure is x = 7.
The marginal profit is -41 dollars.
In accounting, a profit is an income that is given to the owner throughout a successful market producing process (business).
Profitability, which is the owner's primary interest in the income-formation process of market production, is measured by profit. There are various profit metrics that are frequently used.When one more unit is manufactured and sold, a company or individual will make a profit known as marginal profit. The additional expense or profit made when producing the following unit is referred to as marginal. While marginal cost is the additional expense for producing one extra unit, marginal product is the additional income earned.The advertising is given by P(x) = 930 + 15x -4x².
The marginal profit at x = 7 is given by
P(x) = 930 + 15x -4x²
P'(x) = 15 - 8x
Now at x = 7 the marginal profit is
P'(7) = 15 - ( 8×7 )
or, P'(7) = -41
Hence there will be marginal profit of -41 dollars.
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write a quadratic equation that opens down and has vertex at (2,-8)
The quadratic equation that opens down and has vertex at (2,-8) is y = (-|a|)*(x - 2)² + (-8).
The graph of a quadratic function has the shape of a parabola. Although a parabola's "width" or "steepness" and direction of opening can differ, they all have the same basic "U" shape. If the leading coefficient is larger than zero, the parabola opens upward; if it is less than zero, it opens downward.
The quadratic equation's vertex form is y = a*(x - h)2 + k.
Given that (2,-8) or (h, k) is the vertex point (2,-8)
Since the graph starts out downward, a will have a negative value.
Since |a| is the magnitude of a, the quadratic equation will then be written as y = (-|a|)*(x - 2)2 + (-8).
Consequently, y = (-|a|)*(x - 2)2 + is a quadratic equation that opens downward and has a vertex at (2,-8). (-8).
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true/false:1: you can keep mixed numbers when performing multiplication or division.2: numerators must be multiplied by numerators and denominators must be multiplied by denominators.3: You must convert mixed numbers into improper fractions before multiplying or dividing.4: The denominators MUST be the same.
1: you can keep mixed numbers when performing multiplication or division.-----> true
2: numerators must be multiplied by numerators and denominators must be multiplied by denominators.------>false
3: You must convert mixed numbers into improper fractions before multiplying or dividing. ------> false
4: The denominators MUST be the same. -----> false
Brandon is trying out for a junior bowling league. He bowled some extra games Friday and Saturday to practice. On Friday, he paid $7 to rent a pair of shoes and x dollars an hour to bowl. He went to a different bowling alley on Saturday, where he paid $5 to rent shoes and y dollars an hour to bowl. Brandon bowled 2 hours on Friday and 3 hours on
Saturday.
The equation for two different bowling alleys is 2x - 3y = -2
This is a problem from algebraic equations. We can solve this problem by following a few steps.
In the first case, he paid $7 to rent a pair of shoes and x dollars an hour to bowl and bowled for 2 hours on Friday.
Here, the cost to bowl for one hour is x dollars. So, the cost to bowl for 2 hours is ( 2× x ) = 2x
Now, the total expenditure for shoes and to bowl is, (2x + 7) dollars
In the second case, he paid $5 to rent a pair of shoes and y dollars an hour to bowl and bowled for 3 hours on Saturday.
Here, the cost to bowl for one hour is y dollars. So, the cost to bowl for 3 hours is (3 × y) = 3y
Now, the total expenditure for shoes and to bowl is, (3y + 5) dollars.
As the total expenditure is the same in these two cases. Therefore, we can conclude,
(2x + 7) = (3y + 5)
Or, 2x - 3y = -2
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Help me with this please
nswer : D) 1I, II and III
Enter the correct answer in the box.
Linear function g is shown in the graph. Write the slope-intercept form of the equation representing this function.
g
The equation in slope-intercept form that represents the function is: g(x) = -2x + 1.
How to Write the Slope-intercept Form of an Equation?To write the slope-intercept form of an equation that represents the linear function g, find the slope (m) of the line and determine the y-intercept (b) of the line, then substitute the values into g(x) = mx + b.
Slope of the line that represents function g = change in y/change in x = -6 units/3 units
Slope of the line (m) = -6/3
Slope of the line (m) = -2.
The line intercepts the y-axis at y = 1, therefore the y-intercept (b) of the linear function is b = 1.
To write the equation representing the function, substitute m = -2 and b = 1 into g(x) = mx + b:
g(x) = -2x + 1
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The area of a rectangle is 99 m2, and the length of the rectangle is 7 m more than double the width. Find the dimensions of the rectangle.
On the Left side is just an example.
On the paper is my answer to your question with explanation.
Hope this will help:)
Solve: 18a2−30=−33a. Separate your answers, from smallest to greatest, with a comma. Enter only integer(s) or fraction(s).
The solution for the quadratic equation is -5/2, 2/3
Given,
The equation: 18a² - 30 = -33a
We have to solve this equation
We can convert this equation into a quadratic equation:
18a² + 33a - 30 = 0
Now lets solve this quadratic equation with quadratic formula:
Quadratic formula = [tex]\frac{-b(+-)\sqrt{b^{2}-4ac } }{2a}[/tex]
Here,
a = 18, b = 33 and c = -30
Now we can solve:
[tex]\frac{-b(+-)\sqrt{b^{2}-4ac } }{2a}[/tex]
= [tex]\frac{-33(+-)\sqrt{33^{2} -4(18)(-30)} }{2(18)}[/tex]
= [tex]\frac{-33(+-)\sqrt{1089-(-2160)} }{36}[/tex]
= [tex]\frac{-33(+-)\sqrt{1089+2160} }{36}[/tex]
= (- 33 ± √3249) / 36
= (- 33 ± 57) / 36
Solve for:
(- 33 + 57) / 36 = 24/36 = 2/3
Solve for:
(- 33 - 57) / 36 = - 90/36 = - 30/12 = -10/4 = -5/2
That is, the solution for the quadratic equation is -5/2, 2/3
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What number comes next in the following sequence: 8,13,18,23,28,...?
Simplify 4 square root of 72
Simplification of the given expression 4 square root of 72 is equal to 24√2 or 33.94.
As given in the question,
Given expression,
4 square root of 72
Prime factors of 72 are as follow:
72 = 2 × 2 × 2 × 3 × 3
Rewrite them into exponent form we get
72 = 2³ × 3²
Simplification of the given expression 4 square root of 72 is
4√72
= 4 × √ 2³ ×3²
= 4 × √ 2² × 2 × 3²
Calculate the square root
= 4 ×2 ×3 √2
= 24√2
= 24 ×1.414
= 33.94
Therefore, simplification of the given expression 4 square root of 72 is equal to 24√2 or 33.94.
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12. We have worked for along time
now. We're ...... ..... tired.
O O O O
A getting
B seeing
C sending
D meaning
What is the slope of the equation y – 3 = –4(x – 5)?
–4
–3
20
23
Answer: slope = -4
Step-by-step explanation:
y – 3 = –4(x – 5)
y - 3 = -4x + 20
y = -4x + 23
slope = -4
[-17, 10] U (10, ∞)How to solve
1) Let's make use of pair of number lines to find the union between those intervals:
2) Note that in the first line the point 10 is included, while in the second one is not so the answer is:
[tex]\lbrack-17,\:∞)[/tex]Which of the following is a whole number 1. 52. 03. 104. -9.05. 19/36.-7
The whole numbers are defined as numbers that include naturals and zero. Not a fraction, decimal or negative numbers.
So in this case, the whole numbers are: 5 ; 0; 10.
These box plots show the prices for two different brands of shoes.65 70 75 80 85Brand AHIH1550507085Brand B0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 e 90 95 100Price (5)Which statement is the most appropriate comparison of the spreads?O A. The interquartile range (IQR) for brand A, $10, is less than the IQRfor brand B, $20.O B. The interquartile ranges (IQRS) for brands A and B are both $20.O C. The median for brand A, $75, is greater than the median for brandB. $60.O D. The interquartile range (IQR) for brand A, $20, is less than the IQRfor brand B, $70.
Given:
Given the box plots of two different brands of shoes.
Required: Most appropriate comparison of the spreads
Explanation:
From the box plot of brand A,
Minimum value = 65
First quartile, Q1 = 70
Median = 75
Third quartile, Q3 = 80
Maximum value = 85
Also, from the box plot of brand B,
Minimum value = 15
First quartile, Q1 = 50
Median = 60
Third quartile, Q3 = 70
Maximum value = 85
The interquartile range is the difference between the upper quartile and the lower quartile
The interquartile range of brand A is
[tex]\begin{gathered} Q_3-Q_1=80-70 \\ =10 \end{gathered}[/tex]The interquartile range of brand B is
[tex]\begin{gathered} Q_3-Q_1=70-50 \\ =20 \end{gathered}[/tex]Option A is correct.
The median for brand A is $75, which is less than the median of brand B, $60.
Option C is correct.
Final Answer: The most appropriate
Use the fact that
5x2 − y2 = c
is a one-parameter family of solutions of the differential equation
y
dy
dx
= 5x
to find an implicit solution of the initial-value problem
y
dy
dx
= 5x, y(3) = −8.
The required implicit solution to the initial-value problem would be 5x²- y² = 9.5 which is the equation of a hyperbola.
What is the hyperbola?Hyperbola is defined as a conic section, a two-branched open curve, produced by the intersection of a circular cone.
(x-h)²/b² - (y-k)²/a² = 1
We have been given that 5x²- y² = c is a one-parameter family of solutions of the differential equation.
To determine an implicit solution to the initial-value problem ydy/dx = 5x
⇒ y dy/dx = 5x
⇒ y dy = 5x dx
⇒ y²/2 = 5x²/2 + c
If y(3) = −8 which is the means that when substitute x = 3 then y = -8
⇒ (-8)²/2 = 5(3)²/2 + c
⇒ 64/2 = 5(9)/2 + c
⇒ 32 = 22.5 + c
⇒ c = 9.5
Substitute the value of c in the given function 5x²- y² = c
⇒ 5x²- y² = 9.5 which is the equation of a hyperbola.
Therefore, the implicit solution to the initial-value problem would be 5x²- y² = 9.5.
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Which of the following numbers represents the biggest risk of getting a disease? 1in 10, 1 in 1000, 1 in 100
Answer:
1 in 10
Step-by-step explanation:
Find the domain and the range
From the graph we can say that Domain : (-∞,-1) ∪(1,∞)
Range : (0,∞)
What is domain and range ?Mathematical procedures are comparable to those of a soda vending machine. You can choose from a variety of sodas after you deposit a particular sum of money. Similar to how we enter different numbers into functions, we also receive new numbers as the outcome. The two essential characteristics of functions are domain and range. A soda can be purchased using quarters and one dollar bills. If pennies are put into the machine, no soda flavor will be provided. As a result, the domain depicts the possible inputs, which are quarters and one-dollar bills. No matter how much you pay, a Coke machine won't give you a cheeseburger.
From the graph we can say that
Domain : (-∞,-1) ∪(1,∞)
Range : (0,∞)
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HURRY Find all the solutions to 3x3 – 6x2 + 30x – 20 = –20.
0, 1 + 3i, 1 – 3i
0, 2 + 6i, 2 – 6i
0, –1 + 3i, –1 – 3i
0, –2 + 6i, –2 – 6i
Answer:
x= 0,1+3i, 1-3i
Step-by-step explanation:
So the first option
U.S. Customary area unit conversion with whole number values
A flower bed has the shape of a rectangle 21 feet long and 9 feet wide. What is its area in square yards?
Be sure to include the correct unit in your answer.
189cm²
Step-by-step explanation:
area is multiplication so it will be L×B
also because its a rectangle
Must Find the Error in this problem
Answer:
They subtracted when they should have added
Step-by-step explanation:
You must do the opposite so if it says -17 you must add 17 to the other side the answer should be 32
Which inequality describes this situation?
SPEED
LIMIT
80
MINIMUM
75
75 ≥ x ≥ 80
75 ≤ x ≤ 80
75 >x> 80
75 < x < 80
the second one
Step-by-step explanation:
if 75 is the minum speed then you need to go more than 75 and less than 80 which is what the second one is showing
The line below is the function y=-x+3. Identify the equation of a perpendicular line
The equation of the perpendicular line is y = x + 3
Perpendicular line:
The perpendicular line means a straight line that makes the right angle (90 degrees) with the other line.
Given,
Here we have the equation y = -x + 3.
Now, we need to find the equation of the perpendicular line.
In order to find the equation of a perpendicular line, first we need to find the negative reciprocal of the slope given.
Through the given equation we have identified the slope of the line is -1. so the slope of the perpendicular line will be 1.
While looking at the graph we have identified the y intercept of the equation is 3.
So now we know the values of y-intercept and slope.
We just put them together, and apply it one the standard form of the equation of line, then we get,
y = 1x + 3
y = x + 3.
Therefore, the equation of perpendicular line is y = x +3.
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PLEASE PLEASE PLEASE!!!!!!!!!!HELP HELP HELP HELP HELP HELP!!!! IM CRYING IM STUCK
Answer:
[tex]y=\begin{cases}-\dfrac{7}{2}x-16&\text{for $-6\le x\le-4$}\\\\\dfrac{1}{5}x-\dfrac{6}{5}&\text{for $-4 < x < 1$}\\\\\dfrac{9}{4}x-\dfrac{13}{4}&\text{for $1\le x\le 5$}}\end{cases}[/tex]
Step-by-step explanation:
You want the piecewise function that describes the relation shown in the graph.
RelationThe relation shown consists of three line segments connecting the points ...
(-6, 5) and (-4, -2)
(-4, -2) and (1, -1)
(1, -1) and (5, 8)
LinesThe equations for the lines between the pairs of points can be written using the slope formula and the point-slope equation of a line.
The slope formula tells you the slope is ...
m = (y2 -y1)/(x2 -x1)
And the point-slope equation of a line is ...
y -y1 = m(x -x1)
If we add y1 to the equation of the line, and substitute the equation for m, we get ...
y = (y2 -y1)/(x2 -x1)(x -x1) +y1 . . . . . . a 2-point formula for a line
ApplicationBetween x-values -6 and -4, the equation of the line will use the first pair of points:
y = (-2 -5)/(-4 -(-6))(x -(-6)) +5
y = -7/2(x +6) +5 = -7/2x -16
Between x-values -4 and 1, the equation of the line will use the second pair of points:
y = (-1-(-2))/(1 -(-4))(x -(-4)) +(-2)
y = 1/5(x +4) -2 = 1/5x -6/5
Between x-values 1 and 5, the equation of the line will use the last pair of points:
y = (8 -(-1))/(5 -1)(x -1) +(-1)
y = 9/4(x -1) -1 = 9/4x -13/4
Piecewise functionThe piecewise function uses the equation for the line that is applicable for the appropriate x-values. We have listed those sets of x-values above.
We need to make sure that the function has only one definition for any given value of x. When two segments have a point in common, we need to make sure only one segment includes it.
[tex]y=\begin{cases}-\dfrac{7}{2}x-16&\text{for $-6\le x\le-4$}\\\\\dfrac{1}{5}x-\dfrac{6}{5}&\text{for $-4 < x < 1$}\\\\\dfrac{9}{4}x-\dfrac{13}{4}&\text{for $1\le x\le 5$}}\end{cases}[/tex]
The coordinates of midpoint M and endpoint C or a segment are M(-2,-7) and C(12,-9). Find the coordinates of the other endpoint15 )
we have that the midpoint is (-2,-7)
and the endpoint is (12,-9)
We remember the midpoint formula:
[tex]M=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]Where (x1,y1) are the coordinates of one endpoint and
(x2,y2) are the coordinates for the other endpoint.
Here, we are trying to find (x2,y2) given that
(x1, y1) ---> (12, -9)
[tex]\begin{gathered} x_1=12 \\ y_1=-9 \end{gathered}[/tex]And since we also know the midpoint M(-2, -7), making a comparison with this and the midpoint formula, we get two equations, the first one is:
[tex]\frac{x_1+x_2}{2}=-2[/tex]substituting x1 and solving for x2:
[tex]\frac{12+x_2}{2}=-2[/tex][tex]\begin{gathered} 12+x_2=4 \\ x_2=4-12 \\ x_2=-8 \end{gathered}[/tex]And now, with the second equation which is:
[tex]\frac{y_1+y_2}{2}=-7[/tex]we substitute y1 and solve for y2:
[tex]\frac{-9+y_2}{2}=-7_{}[/tex]solving for y2:
[tex]\begin{gathered} -9+y_2=-14_{} \\ y_2=-14+9 \\ y_2=-5 \end{gathered}[/tex]This the other endpoint (x2,y2) is at (-8,-5)
Find the unknown angle for the following right triangle:
Angle A Angle B Angle C
? 29 27°
The unknown angle for the given right triangle ABC which is angle A is: 63°
What is the angle in the right angle triangle?We are given the angles of a right angle triangle ABC as;
∠B = 90°
∠C = 27°
Now, it is pertinent to note that the sum of all angles in any given triangle is always 180°. This means that in our right angle triangle ABC, we can say that;
∠A + ∠B + ∠C = 180°
Thus;
∠A + 90 + 27 = 180
∠A + 117 = 180
∠A = 180 - 117
∠A = 63°
Thus, we conclude that the value of angle A is gotten as ∠A = 63°
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Complete question is;
Find the unknown angle for the following right triangle:
Angle A Angle B Angle C
? 90 27