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garik1379 [7]
2 years ago
10

The graph shows the quadratic function f. Find f (-4)​

Mathematics
1 answer:
liraira [26]2 years ago
8 0
The quadratic equation is f(x)=1/2x^2 -5
in order to find f(4) you simply insert 4 in place of C
f(4)= 1/2(4^2)-5
f(4)= 1/2 (16) -5
f(4)= 8-5
f(4)= 3

by double checking the graph you can verify the answer
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Find volume with full working out ty
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Answer:

3000 cm³

Step-by-step explanation:

Volume = Difference of Volumes of the two pyramids

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Base area = area of EFGH = 10²

Height = ML = 15

V2 = ⅓×(10²)×15 = 4000

Volume, V2, of the smaller pyramid with tip at L:

Base area = area of = 10²

Height = OL = OM+ML = 15+15 = 30

V1 = ⅓×(10²)×30 = 1000

Volume = V1 - V2

= 4000-1000 = 3000 cm³

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2 years ago
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You need to use the y = mx + b formula which will get you to the answer
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2 years ago
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In your own words, describe to someone who knows only a little statistics how to recognize when an observation is an outlier. Wh
erik [133]

Answer:

B)

Step-by-step explanation:

In statistics, an outlier is a data point that differs significantly from other observations.

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A) We can say that this is true, the outliers are observed values far from the other data, however we can make a much deeper analysis of this.

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C) this is wrong because although the part of the histogram is true. It is not true that they should be ignored.

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Therefore, the correct answer is B)

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3 years ago
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Answer:

8.5

Step-by-step explanation:

4 0
3 years ago
I really need help i’m going to fail so answer if you can ! <3
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Answer:

110

Step-by-step explanation:

you place 30 in the place of X, and it becomes 4×30-10. in PEMDAS, multiplication goes first and 4×30=120. 120-10=110

8 0
3 years ago
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