23 POINTS! NINTH GRADE ALGEBRA HOMEWORK PLEASE HELP ASAP!!

1 answer:

8 0

$\frac{ - b \sqrt{b {}^{2} - 4 \times a \times b} }{ - 2 \times a}$
$a = {x}^{2} \\ b = x \\ c = 12$
$\frac{ - ( - 2) \sqrt{ { - 2}^{2} - 4 \times 2(x)\times - 12} }{ - 2 \times 2}$

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Quadrilateral ABCD is similar to quadrilateral EFGH. Find the measure of side EF

garri49 [273]

Answer:

EF = 6.6

Step-by-step explanation:

Since ABCD is similar to EFGH, then EH is similar to AD. So, we can solve by first dividing 12 by 2 (EH by AD). The quotient of this is 6. This tells us that quadrilateral EFGH is 6 times larger than quadrilateral ABCD, since they are similar. So, with this and the measurement of AB (which is similar to EF), we can now solve for EF. We simply multiply 1.1 (the measurement of AB) by 6 (how many times larger EFGH is compared to ABCD). The product of this is 6.6, our final answer.

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So she used $\frac{5}{6}$ of the cord to make necklaces.
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$\frac{1}{6} ( \frac{1}{4})$
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She used $\frac{1}{24}$ of the original chord to make each bracelet.

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Step-by-step explanation:

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frosja888 [35]

45 minutes is equal to 1.5 times 30:

1.5*30=45

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