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ElenaW [278]
4 years ago
15

10 points and brainliest to correct answer plz

Mathematics
1 answer:
USPshnik [31]4 years ago
4 0
By the pythagorean theorem, we know that (leg1)^2 + (leg2)^2 = hypotenuse^2. to see the proof refer to the following link: http://jwilson.coe.uga.edu/EMT668/EMT668.Student.Folders/HeadAngela/essay1/Pythagorean.html
plugging in what we know we have 16^2 + leg^2  = 20^2 and we find that leg = 12.
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Answer:

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Step-by-step explanation:

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3 years ago
BRAINLIEST ASAP! PLEASE HELP ME :)
morpeh [17]

Answer:

○\displaystyle -\frac{6}{\sqrt{35}}\:[or\:-\frac{6\sqrt{35}}{35}]

Explanation:

Looking in quadrant III, in the degree-angle range of 180° to 270°, take the <em>inverse</em><em> </em><em>of</em><em> </em><em>cosine</em><em> </em>to get your angle measure, then plug it into the <em>cosecant</em><em> </em>function to get the above answer.

I am joyous to assist you anytime.

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3 years ago
Add the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending powers o
tresset_1 [31]
ANSWER
13 {x}^{3}  - 2 {x}^{2}  + 3x + 13

EXPLANATION

The first polynomial is
5 {x}^{3}  + 3 {x}^{2}  - 5x + 4


The second polynomial is
8 {x}^{3}  - 5 {x}^{2}  + 8x + 9


If we add the two polynomials we obtain,



(5 {x}^{3}  + 3 {x}^{2}  - 5x + 4) + (8 {x}^{3}  - 5 {x}^{2}  + 8x + 9)


Next we group like terms to obtain,


5 {x}^{3} + 8 {x}^{3}+ 3 {x}^{2}  -5 {x}^{2}   - 5x  + 8x + 9 + 4



We simplify the to obtain,


13{x}^{3} -2{x}^{2}    + 3x + 13

This is the sum of the two polynomials in descending powers of
x


Descending means from the highest power to the least.
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7 ounces without the nails
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