3 years ago

I need to be able to find the value of x

1 answer:

8 0

If a 4 sided figure has 360°...for each side we add, we add 180°.

you have a 7 sided figure (360° + 3(180°) = 900°)

adding up your angles (781) and subtract it from 900 =

x = 119°

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I think of a number multiply it by 3 and subtract 4 i get 32 what was the number help pleaseeee

love history [14]

Answer:

Step-by-step explanation:

3 x 12 = 36

36 - 4 = 32

8 0

3 years ago

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Determine whether the binomial is a factor of f(x).<br><br> f(x) = x3 + 11x2 + 24x - 36; x - 4

attashe74 [19]

If it is, then $f(4)$ would be equal $0$ .

$f(4)=4^3+11\cdot4^2+24\cdot4-36\\
f(4)=64+11\cdot16+96-36\\
f(4)=124+176\\
f(4)=300\not =0 \Rightarrow \text{ it isn't}$

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3 years ago

If a convex polyhedron has 12 edges and 8 faces, then how many vertices does it have?

Vika [28.1K]

Hi

Use Euler's formula for this for a 3D figure. F + V = E + 2, where F is the number of faces, V is the number of vertices, E is the number of edges, +2! You have enough info to fill in the formula to find that the number of vertices is 6.
Hoped I Helped

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3 years ago

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Solve for m: 18d + 2m + 9k < 5k + 10

BigorU [14]

Use the photomath app

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3 years ago

If f(x) = -3x - 5 and g(x) = 4x - 2, find (f+ g)(x)

Sergeeva-Olga [200]

Answer:

(f+g)(x)=f(x)+g(x)

=(-3x-5)+(4x-2)

= -3x-5+4x-2. collect like term

= -3x+4x-5-2

= x-7. the final answer

8 0

2 years ago