3 years ago

Help me with mathhh?!!!!???

Mathematics

1 answer:

DedPeter [7]3 years ago

3 0

Answer:

x = 1 1/4

Step-by-step explanation:

sqrt( 7x+2) = sqrt(3x+7)

Square each side

(sqrt( 7x+2))^2 = (sqrt(3x+7))^2

7x+2 = 3x+7

Subtract 3x from each side

7x-3x +2 = 3x+7-3x

4x+2 = 7

Subtract 2 from each side

4x+2-2 = 7-2

4x = 5

Divide by 4

4x/4 = 5/4

x = 1 1/4

Check for extraneous solution

sqrt( 7*5/4+2) = sqrt(3*5/4+7)

sqrt( 35/4 + 8/4) = sqrt(15/4+28/4)

sqrt( 43/4) = sqrt(43/4)

Solution is valid

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In the game of Pick-A-Ball without replacement, there are 10 colored balls: 3 red, 4 white, and 3 blue. The balls have been plac

Margarita [4]

Answer:A)0.27

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Step-by-step explanation:

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3 years ago

Can someone explain how to do this and answer 5-8

Shkiper50 [21]

#5 is 96 because it is congruent to the one on top

6 0

3 years ago

Read 2 more answers

Which decimals are between 10% and 20%? 0.11 0.09 0.13 0 0.19 0.011

Gekata [30.6K]

Answer:

0.19

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0.11

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2 years ago

Solve this problem √-16

a_sh-v [17]

Answer:

$4i$

Step-by-step explanation:

$\sqrt{-1} = i$

Therefore $\sqrt{-16} = \sqrt{16} \sqrt{-1} \\=4i$

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2 years ago

Help me with mathhh?!!!!??? ​

Help me with mathhh?!!!!???