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Sedaia [141]
3 years ago
14

Given the function f(x) = 3x2 − 4, what is f(-2)? A. -40 B. -16 C. 8 D. 32

Mathematics
2 answers:
adoni [48]3 years ago
8 0
^^ correct! It would be 8! Your answer is C.
Temka [501]3 years ago
3 0

All this is asking you to do is plug in -2 for x

So

f(x)=3x²-4

f(-2)=3(-2²)-4

f(-2)=12-4

f(-2)=8

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Karim is ordering video games. Each game costs $39.99, and there is a $4.85 shipping charge per order. How much will it cost him
weqwewe [10]
Given:
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7 0
3 years ago
Find the volume of both shapes please answer will give brainiest Also please answer neatly.
SSSSS [86.1K]

Answer:

2). Volume = 14400 feet³

3). Volume = 157.5 ft³

Step-by-step explanation:

Both the figures given in the sheet attached are a rectangular pyramid and a triangular prism.

2). In this part of the question solid given is in the shape of an rectangular pyramid.

Volume of this oblique pyramid = \frac{1}{3}(\text{Base})(\text{Height})

Here 'B' = area of the base

h = height of the pyramid

Volume = \frac{1}{3}(25\times 36)\times 48

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4). Volume of a triangular cone = (Area of the triangular base)×(height)

                                                    = [\frac{1}{2}(\text{Base})(\text{height})]\times {\text{height of the prism}}

                                                    = \frac{1}{2}(7\times 9)\times {5}

                                                    = 157.5 ft³

6 0
3 years ago
T+20.04=14.3 uhm okay it says it's too short sooooo yea please answer
Goshia [24]
The answer is t=5.74
8 0
2 years ago
1,1,2,3,5,8,13,? What goes next?
Leviafan [203]
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3 years ago
Robert has a number cube, a coin, and a (fair) spinner numbered 1 to 6.
Elan Coil [88]
I think B because I think B
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