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Elden [556K]
3 years ago
13

Which body part is the same length as the persons length?

Mathematics
2 answers:
Lemur [1.5K]3 years ago
8 0
Skin hope is helpful
nexus9112 [7]3 years ago
4 0
I believe it's Arm span
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Simplify:<br><br> (3y)^4 (times) y^-2<br><br> A) 1/2y^2<br> B) 3y^2<br> C) 1/81 y^2<br> D) 81 y^2
yulyashka [42]
(3y)^4\cdot y^{-2}=81y^4\cdot y^{-2}=81y^{2}
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4 years ago
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Step-by-step explanation:

i hope this helps, let me know if this is right.

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3 years ago
On a number line, point A has a coordinate of -6, and point B has a coordinate of 2. Which is the coordinate of
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C.

Step-by-step explanation:

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Solve the equation 2 cos x + 1 = 0 , 0 &lt;= x &lt;= 2pi PLEASE HELP! WILL AWARD!
Keith_Richards [23]
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What are the values of a and b?
ivann1987 [24]

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<h2>a = 400/21, b = 580/21</h2>

Step-by-step explanation:

Small triangles are similar. Therefore, the sides are proportional

\dfrac{a}{20}=\dfrac{20}{21}               <em>cross multiply</em>

21a=(20)(20)       <em>divide both sides by 21</em>

a=\dfrac{400}{21}

For b, we can use the Pythagorean theorem:

b^2=\left(\dfrac{400}{21}\right)^2+20^2\\\\b^2=\dfrac{160000}{441}+400\\\\b^2=\dfrac{160000}{441}+\dfrac{176400}{441}\\\\b^2=\dfrac{336400}{441}\to b=\sqrt{\dfrac{336400}{441}}\\\\b=\dfrac{\sqrt{336400}}{\sqrt{441}}\\\\b=\dfrac{580}{21}

3 0
3 years ago
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