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AleksandrR [38]

3 years ago

14

Multiply the numbers. Round the answers to the nearest cent.

1 answer:

bonufazy [111]3 years ago

8 0

Answer:

$21. \: 136.1$

$22. \: 27.0$

$23. \: 471.3$

Remember to add "$" before the number.

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Need expert answer...Solve if you know,Explain your answer if you don't...Thank you.

Igoryamba

Answer:

C

Step-by-step explanation:

A piece wise function involves two or more functions over specific intervals. The equations of the two lines are the following y=x+1 and y=-x+2. The line y=-x+2 continues to the right and has an open circle at the end. So this point is not included. This means the interval is a greater than sign but not equal to. This means C is the answer.

3 0

4 years ago

I need help with this . short and easy response please

Alika [10]

$\frac{\frac{1}{4}-\frac{2}{3}}{\frac{3}{5}}=\frac{\frac{3}{12}-\frac{8}{12}}{\frac{3}{5}}=\text{ }\frac{-\frac{5}{12}}{\frac{3}{5}}=\text{ -}\frac{25}{36}$

7 0

1 year ago

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quester [9]

Answer:

<u>The domain is the set of x-values:</u>

{-4, -2, 1, 2, 4}

<u>The range is the set of y-values:</u>

{-4, -2, -1, 1, 4}

This can be a function as each x- value has exactly one corresponding y- value.

3 0

3 years ago

Read 2 more answers

Solve the equation by graphing the related function.

Triss [41]

Answer:

Your graph is a parabola and needs to open down because the equation is negative. And your vertex is at (0,-4)

5 0

3 years ago

Please help me with these 5 questions!

kipiarov [429]

Answer:

Part 2) Option D. yes; k = 1/4 and y = 1/4x

Part 6) Option D. y = 1/5x-1

Part 8) Option C. line b

Part 11) Option D. -1/5

Part 15) Option A. line a

Step-by-step explanation:

Part 2) we know that

A relationship between two variables, x, and y, represent a directly variation if it can be expressed in the form $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem the line passes through the origin

therefore

Yes. y varies directly with x

Let

A(4,1)

The constant k is equal to

$k=y/x$

substitute

$k=1/4$

the equation is equal to

$y=(1/4)x$

Part 6) we know that

The y-intercept of the trend line is -1 (For x=0)

The slope of the trend line is positive

The x-intercept of the trend line is 5 (For y=0)

therefore

the equation is equal to

$y=(1/5)x-1$

Part 8) we have

$y+4=-\frac{2}{3}x$

This is the equation of a line into point slope form

The slope is negative $m=-2/3$

Pass through the point (0,-4) ----> y-intercept

The x-intercept is equal to

$0+4=-\frac{2}{3}x$

$x=-4*3/2=-6$

therefore

Is the line b

Part 11)

What is the slope of the line through the points (–2, –1) and (8, –3)?

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{-3+1}{8+2}$

$m=\frac{-2}{10}$

simplify

$m=-\frac{1}{5}$

Part 15) we have

$y=3x-2$

The slope is positive $m=3$

The y-intercept is -2 (For x=0)

The x-intercept is (For y=0)

$0=3x-2$

$3x=2$

$x=2/3$

therefore the line is a

7 0

3 years ago