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andrezito [222]
3 years ago
9

Help me with this question please

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

7x/x-4 * x/x+7

mutiply the numerators together

(7x)(x)= 7x^ 2

mutiply the denominators together

(x-4)(x+7)

(x)(x)(7)(x)= x^2+7x

(-4)(x)(-4)(7)= -4x-28

x^2+7x-4x-28

x^2+3x-28

Answer:

7x^2/x^ 2+3x-28

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E, C, B

When you solve the equation for y, the slope (number next to x) should be 3, because In order for it to be parallel to the original line they need to have the same slope
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For a singing contest in which 42,000 votes were cast, the winner received 3/5 of the votes. How many votes did the winner not r
zaharov [31]
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3 0
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Read 2 more answers
Goes through points (-2,-1) and (-3,5)<br> Help me pleaseeeeeeeeeee
DedPeter [7]

Answer:

Distance between two points = √37

Step-by-step explanation:

Given:

(-2,-1)

(-3,5)

Find:

Distance between two points

Computation:

Distance = √(x1 -x2)² + (y1 - y2)²

Distance between two points = √(-2+3)² + (-1 - 5)²

Distance between two points = √ 1 + 36

Distance between two points = √37

7 0
3 years ago
2m² + 2m – 12 = 0<br>m=? <br>a. 2,-12 <br>b. 3,1 <br>c. 1.-3 <br>d. -2.2​
sammy [17]

Step-by-step explanation:

F1/A1 = F2/A2

10/2=F2/4

5=F2/4

F2=5x4

F2=20

4 0
2 years ago
Two sides of a triangle are 7 m 7 m and 12 m 12 m in length and the angle between them is increasing at a rate of 0.06 rad/s 0.0
gayaneshka [121]

Answer:

1.26 m^2 / s.

Step-by-step explanation:

The area A of the triangle = 1/2*7*12 sin x  = 42 sin x where x  is the angle between the lines.

Relation between the rates is

dA/dt  + dA/dx * dx/dt

We are given that dx /dt = 0.06 rad/s.

A = 42 sin x

dA/dx = 42 cos x

So dA/dt = 42 cos x * 0.06

When x = π/3  ( I am assuming that π 3 means π divided by 3 ):

dA/dt = 42 cos π/3 * 0.06

= 1.26 m^2/s.

8 0
3 years ago
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