2 years ago

I need help on this 8th grade math this is due tomorrow.

Mathematics

1 answer:

LekaFEV [45]2 years ago

6 0

Answer:

Step-by-step explanation:

Raise 2.5 to the power of 2 =

6.25

Pull terms out from under the radical, assuming positive real numbers =

You might be interested in

What is a comparison as a rate in ratio form 70 students per 2 teachers

nekit [7.7K]

Answer:

35:1

Step-by-step explanation:

divide each by two

8 0

3 years ago

In triangle ABC shown find BC.

Sonja [21]

Answer:

BC is just 3d+7??

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

6.<br> -20 + -2m<br> Can u help me

stellarik [79]

Answer

Step-by-step explanation:

Replace all occurrences of

−

with a single

−

. A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because

⋅

−

4 0

3 years ago

Solve for x.<br> 2x² +21x-61 = (x+7)²<br><br> Please

Ymorist [56]

Answer:

$x = \frac{-7 +\sqrt{489} }{2}$

$x = \frac{-7 - \sqrt{489} }{2}$

Step-by-step explanation:

2x² +21x-61 = (x+7)²

expand

2x² + 21x - 61 = x² + 14x +49

move everything to one side

x² + 7x - 12 = 0

use quadratic formula

$x = \frac{-b +- \sqrt{b^{2}-4ac } }{2a}$

plug in the values

$x = \frac{-7 +- \sqrt{7^{2}-4(1)(-110) } }{2(1)}$

solve

$x = \frac{-7 +- \sqrt{49-4(1)(-110) } }{2}$

$x = \frac{-7 +- \sqrt{49 + 440 } }{2}$

$x = \frac{-7 +- \sqrt{489} }{2}$

7 0

2 years ago

Read 2 more answers

Can you help me please?

melisa1 [442]

Answer:

it is a it the first one. 7/13

5 0

3 years ago

Read 2 more answers