2 years ago

Which selection best indicates the slices that can be made from the right rectangular pyramid?

Mathematics

1 answer:

gizmo_the_mogwai [7]2 years ago

5 0

Pls stop putting links people actually need help on questions.

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What are the zeros of 2x^2+17x=-21

enyata [817]

$2x^2+17x+21=0\\D=17^2-4*2*21=121=11^2\\x_1=\frac{-17+11}{4} =-1,5\\x_2=\frac{-17-11}{4} =-7$

zeros of 2x^2+17x=-21 are (-7;0) and (-1,5)

P.S. Hello from Russia

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2 years ago

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Sergio [31]

1) given
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3) definition of linear pair and supplementary
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3 years ago

Solve for x. Round to the nearest tenth, if necessary. 1.8 & x

Valentin [98]

Answer:

x ≈ 1.4

Step-by-step explanation:

Using the sine ratio in the right triangle

sin50° = $\frac{opposite}{hypotenuse}$ = $\frac{RS}{RT}$ = $\frac{x}{1.8}$ ( multiply both sides by 1.8 )