3 years ago

Please help

Mathematics

1 answer:

gtnhenbr [62]3 years ago

7 0

A line perpendicular to y = -2x + 5 will have an equation in the form of:

y = (1/2)x + b

Since the graph must intersect (-2,9), we plug in this point to solve for b.

9 = (1/2)*(-2) + b

9 = -1 + b

10 = b

So the equation is:

y = (1/2)x + 10

The answer is A.

You might be interested in

-3x^2 plus 24x = 27 <br> complete the square

Rudik [331]

You can divide the whole expression by -3:

$-3x^2+24x=27 \iff x^2-8x = -9$

Recalling that

$(x-a)^2=x^2-2ax+a^2$

Let's compare the middle term:

$-8x = -2ax \iff a=4$

So, we want to complete

$(x-4)^2 = x^2-8x+16$

Which differs from $x^2-8x$ by 16. So, if we add 16 to both sides, we have

$x^2-8x=-9 \iff x^2-8x+16=7 \iff (x-4)^2=7$

3 0

4 years ago

Read 2 more answers

How much taller is a meter stick than the loveseat

Westkost [7]

A meter stick is about 3 yards longer

5 0

3 years ago

Read 2 more answers

What is the surface area of the square pyramid

In-s [12.5K]

Answer:

16 ft

Step-by-step explanation:

3 0

3 years ago

Which statement best describes the area of the triangle shown below?

Molodets [167]

Answer:

A triangle.

Step-by-step explanation:

5 0

3 years ago

A water tank holds 200 gallons but is leaking at a rate of 3 gallons per week. A second water tank holds

vlada-n [284]

200-3w = 300-5w

Where w is the number of weeks

Rearrange and reduce:
-3w + 5w = 300-200
2 w = 100
w = 100/2 = 50 weeks

5 0

3 years ago