3 years ago

The midpoint of a segment with endpoint (8, a) and (b, 4) is (−1, −1).

Mathematics

1 answer:

Elanso [62]3 years ago

8 0

Answer:a =23

Step-by-step explanation:

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Can someone explain this to me.

almond37 [142]

Answer:

option D

$3*(\sqrt{x}+\sqrt{x-3})$

Step-by-step explanation:

Given in the question an expression,

$\frac{9}{\sqrt{x} -\sqrt{x-3}}$

Step 1

Divide and multiple by $\sqrt{x}+\sqrt{x-3}$ to remove radical sign from denominator.

$\frac{9}{\sqrt{x} -\sqrt{x-3}}*\frac{\sqrt{x} +\sqrt{x-3}}{\sqrt{x} +\sqrt{x-3}}$

Step 2

Apply a² - b² = (a+b)(a-b)

$\frac{9*\sqrt{x}+\sqrt{x-3}}{\sqrt{x^{2}}-\sqrt{(x-3)^{2}}}}$

Step 3

$\frac{9*\sqrt{x}+\sqrt{x-3}}{x-x+3}$

Step 4

$\frac{9*\sqrt{x}+\sqrt{x-3}}{3}$

Step 5

$3*(\sqrt{x}+\sqrt{x-3})$

7 0

3 years ago

Find the complete factorization of the expression.<br><br> 16xz + 20yz

Andreyy89

To completely factor you must from the Greatest common factor

In this case it is 4z

So the complete factorization is

4z(4x + 5y)

8 0

3 years ago

To practice for a competition, Kate swam 710 meters in the pool each day for 3 weeks. How many kilometers did Kate swim in those

gayaneshka [121]

Answer:

14910 meters

Step-by-step explanation:

3 weeks= 21 days

each day= 710 m

21 days= 710*21

21 days= 14910 m

8 0

2 years ago

Need help due tonight!!

Luba_88 [7]

Answer:

Step-by-step explanation:

Each side length is being multiplied by 8

8 0

3 years ago

Read 2 more answers

B) If fencing costs $2.50/yd, determine the<br> costs of building the fence.

siniylev [52]

You didn’t give the rest of the answer hun

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3 years ago