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3 years ago

Triangle XYZ is similar to ABC. Enter the missing side length.

Mathematics

1 answer:

avanturin [10]3 years ago

7 0

11.6 is the missing side length

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What is the equation of a line that passes through (0, 5) and (-10, 0)

gogolik [260]

Y= 1/2x-10 is the answer.

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3 years ago

A jeweler buys a ring from a jewelry maker for $125. He marks up the price by 135% for sale in his store. What is the selling pr

denis23 [38]

$125+135%=293.75
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5 0

3 years ago

What is cos (x)?<br><br> 48/58<br><br> 58/48<br><br> 26/58<br><br> 58/26

Evgen [1.6K]

<span>We have to calculate the length of the missing side.
Use the Pythagorean theorem:

$a^2+32^2=58^2\\\\a^2+1024=3364\ \ \ |-1024\\\\a^2=2340\to a=\sqrt{2340}\\\\a=\sqrt{36\cdot65}\\\\a=6\sqrt{65}$

$\cos x=\dfrac{6\sqrt{65}}{58}=\dfrac{3\sqrt{65}}{29}$

I think. Your answers to choice are wrong.
</span>

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4 years ago

A rectangle has a perimeter of 48cm. The length is twice the width. What is the area? (NEEDED ASAP)

Vanyuwa [196]

Answer:

128cm^2

Step-by-step explanation:

The length is 16 and the width is 8. 16*8=128.

4 0

3 years ago

Can someone please help and explain its due in a littleee

jek_recluse [69]

$f(x) = {x}^{2} - 3x + 2$

put x = (-1)

$f( - 1) = {( - 1)}^{2} - 3 \times ( - 1) + 2 \\ \\ 1 + 3 + 2 \\ \\ 6.$

put x = (z)

$f(z) = {z}^{2} - 3 \times z + 2 \\ \\ {z}^{2} - 3z + 2 \\ \\ {z}^{2} - 2z - z + 2 \\ \\ z(z - 2) - 1(z - 2) \\ \\ (z - 1)( z -2 ) \\ \\ (z - 1) = 0 \: \: , \: \: (z - 2) = 0\\ \\ z = 1 \:, \: 2$

put x = (x+1)

$f(x + 1) = {x}^{2} - 3x + 2 \\ \\ {(x + 1)}^{2} - 3 (x + 1) + 2 \\ \\ {x}^{2} + 1 + 2x - 3x - 3 + 2 \\ \\ {x}^{2} - x \\ \\ x(x - 1) \\ \\ x(x - 1) = 0 \\ \\ x - 1 = \frac{0}{x} \\ \\ x - 1 = 0 \\ \\ x = 1.$

put x = (√2 + 1 )

$f( \sqrt{2} + 1) = {x}^{2} - 3x + 2 \\ \\ {( \sqrt{2} + 1) }^{2} - 3( \sqrt{2} + 1) + 2 \\ \\ 2 + 1 + 2\sqrt{2} - 3 \sqrt{2} - 3 + 2 \\ \\ 3 - 1 \sqrt{2} - 1 \\ \\ 2 - \sqrt{2} \\ \\ 2 - 1.4 (optional \: \: \: steps)\\ \\ 0.6 \: \:$

4 0

2 years ago