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2 years ago

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Determine if y=-2x-7 and -y=2x+13 are parallel, perpendicular, coincide or none of these

1 answer:

Goryan [66]2 years ago

4 0

If you move the negative on the left side of the second equation over to the right side, then we can see that the equation is equivalent to $y={-2x} - 13$ .

Remember that an equation $y = mx + b$ represents a line with slope $m$ and y-intercept $b$ . Since both equations given have a slope of -2, but have different y-intercepts, they are parallel.

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See attachment below

KatRina [158]

Answer: Third Option

$x=1.469743$

Step-by-step explanation:

We have the following exponential equation

$3^{x+1}=15$

We must solve the equation for the variable x

To clear the variable x apply the $log_3$ function on both sides of the equation

$log_3(3^{x+1})=log_3(15)$

Simplifying we get the following:

$x+1=log_3(15)$

To simplify the expression $log_3 (15)$ we apply the base change property

$log_b(y)=\frac{log(y)}{log(b)}$

This means that:

$log_3 (15)=\frac{log(15)}{log(3)}$

Then:

$x+1=\frac{log(15)}{log(3)}$

$x=\frac{log(15)}{log(3)}-1$

$x=1.469743$

6 0

2 years ago

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tamaranim1 [39]

50+50=100

180-100=80

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4 0

2 years ago

Which fraction is equivalent to negative 7 over 8 ? (1 point)

Alja [10]

The answer is -7/8\= 7/-8 Thank you!

6 0

3 years ago

Read 2 more answers

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Gnesinka [82]

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5 0

3 years ago

Read 2 more answers

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Ganezh [65]

Answer:

1.2/15

2.4/11

3.1/12

4.2/23

5.3/10

6.51

7. 1

8.30

9.36/55

10.248/15

Step-by-step explanation:

hope it helps

5 0

2 years ago