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3 years ago

11

Select the correct answer.

1 answer:

jasenka [17]3 years ago

6 0

Answer:

The correct answer is B (4,-5)

Step-by-step explanation:

Each increment goes down by 2.5, so the only choice that really matches is B. (4,-5)

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3 years ago

Which geometric shape are quadrilaterals that have only one pair of parallel sides ?

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Quadratic trapezoids have only one pair of parallel sides

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3 years ago

1) For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.

Gelneren [198K]

Answer:

Yes, "y" varies directly with "x".

The equation is: $y=1.375x$

Step-by-step explanation:

By definition, Direct variation equations have the following form:

$y=kx$

Where "k" is the Constant of variation.

If you solve for "k", the equation is:

$k=\frac{y}{x}$

Then, given the table provided in the exercise, you can know if "y" varies directly with "x" by finding the quotient of the correspoding values of "x" and "y":

- Dividing $y=11$ by $x=8$ you get:

$\frac{11}{8}=1.375$

- Divide $y=22$ by $x=16$ :

$\frac{22}{16}=1.375$

- Dividing $y=33$ by $x=24$ :

$\frac{33}{24}=1.375$

Since the quotient is constant, then "y" varies directly with "x" and the the Constant of variation is:

$k=1.375$

Therefore, the equation for the Direct variation is:

$y=1.375x$

8 0

3 years ago

Helen borrowed money from her aunt to pay for college expenses. The graph below shows the amount left

enot [183]

Answer:

$y = -100x + 13000$

Step-by-step explanation:

See attachment for graph

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (0,13000)$

$(x_2,y_2) = (130,0)$

Next, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{0 - 13000}{130 - 0}$

$m = \frac{- 13000}{130}$

$m = -100$

Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

$y - 13000 = -100(x - 0)$

$y - 13000 = -100x$

Make y the subject

$y = -100x + 13000$

Hence, the line equation is:

$y = -100x + 13000$

4 0

3 years ago

Can anyone help me with this one

Eduardwww [97]

The inequality is 10j is less than or equal to 130

10j ≤ 130

8 0

2 years ago