3 years ago

A certain number added to its square is 30. Find the number

1 answer:

5 0

X+x²=30
x²+x-30=0
(x+6)(x-5)=0
x=-6 or x=5

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Nata [24]

8+7+3/4+2/4
= 15 5/4
= 16 1/4

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4 years ago

vekshin1

Answer:

true

Step-by-step explanation:

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3 years ago

katovenus [111]

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3 years ago

scoundrel [369]

Answer:

Option D. No,they are not similar because their side lengths are not proportional.

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem If the rectangles are similar

then

The ratio of its corresponding lengths must be equal to the ratio of its corresponding heights

<u><em>Verify</em></u>

$\frac{95}{19}=\frac{6.5}{11}\\\\95*11=19*6.5\\\\1,045\neq123.5$

therefore

The rectangles are not similar because their side lengths are not proportional.

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3 years ago

horsena [70]

Answer: 2/7

Step-by-step explanation: change the number into fraction form, reduce it and reverse the numerator and denominator.

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4 years ago