All categories

3 years ago

The value of y varies directly with x, and y = −12 when x = 6. Find y when x = −4. A. −8 B. 8 C. 24 D. −24

Mathematics

1 answer:

Burka [1]3 years ago

6 0

Answer:

B. 8

Step-by-step explanation:

The proportion shown is k=-2. You multiply k by the x variable and that gives you 8. (-4 x -2=8)

You might be interested in

Given f ( x ) = x ^2 - 1, find the value f ( p ).

Ierofanga [76]

F(x) = f(p)
f(p) = x^2 -1

your answer is f(p) = p^2 -1
hope you understand what i have done.

6 0

3 years ago

Two boxes are stacked one on top of the other. One box is 6 feet 7 inches tall, and the other is 6 feet 6 inches tall. How high

Orlov [11]

Answer:

7ft 1in.

Step-by-step explanation:

add the two 6 ft together and that gives you 12 ft. then add 7 in + 6 in which gives you 13 in. There are 12 in a foot, so you take 12 away from the 13 giving you 1 in remaining and 1 additional foot to add to the 12.

6 0

2 years ago

Which of the following coordinates does this line pass through?

forsale [732]

Answer:

(3, 5)

Step-by-step explanation:

5 0

3 years ago

Hii! I need some help, would anyone mind helping me?

Kisachek [45]

Step-by-step explanation:

${x}^{2} - 14x - 25 {y}^{2} + 100y = 76$

Factor by grouping,

$( {x}^{2} - 14x) - (25 {y}^{2} - 100y) = 76$

Complete the square, with the x variables,

$( {x}^{2} - 14x + 49) - (25 {y}^{2} - 100y) = 125$

Factor out 25 for the y variables

$( {x}^{2} - 14x + 49) - 25( {y}^{2} - 4y) = 125$

Complete the square

$( {x}^{2} - 14x + 49) - 25( {y}^{2} - 4y + 4) = 25$

Simplify the perfect square trinomial

$(x - 7) {}^{2} - 25(y - 2) {}^{2} = 25$

Make the right side be 1 so divide everything by 25.

$\frac{(x - 7) {}^{2} }{25} - (y - 2) {}^{2} = 1$

Here our center is (7,2).

8 0

2 years ago

Does (–3, 17) make the equation y = 6x + –1 true?

telo118 [61]

Answer:

ture

Step-by-step explanation:

Read the article and review the phases of mitosis.

Mitosis

6 0

2 years ago