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4 years ago

HELP I need to find the mean of this numbers but I cant figure it out

Mathematics

2 answers:

Basile [38]4 years ago

6 0

I got 0......when I added them all up I got 0 so dividing would still give me 0

lara31 [8.8K]4 years ago

4 0

I got 0.

Why: To find the mean of a set of numbers, you need to add all the numbers that are given. Once you find the numbers that are given, divide by the amount of numbers given. Basically, add -1, 4, 0, -1, -1, -1, then divide the outcome by 6.

Message me for more help if needed.

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If f(x) = -x – 5 and g(x) = x2 – 15, find f(-9) – 9(-3). Your aſswer

muminat

Answer:

Step-by-step explanation:

f(-9) = -(-9)-5

= 9-5

= 4

f(-9) - 9(-3) = 4 - (-27)

= 31

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3 years ago

Calculate the Volume and surface area

aleksley [76]

Answer:

volume= 1040

surface area=696

Step-by-step explanation:

1/2x 13x10x16

=1040#

(1/2x12x10)2

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(16x13)2

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8 0

3 years ago

Please HELP! A. B. C. D

pickupchik [31]

Answer:

if that line follows y=mx...then answer is A

But it seems not....when we divided valuse like 60/2=30

75/3=25....

ratio is not the same

Its hard to tell....You must know exact cordinations

I can tell you this

I can say this if y=60 and x=2 and....y=120 and x=4...then it is propotional...but it seems not..

3 0

3 years ago

8. For questions 8-9, determine whether the two figures are similar. If so, give the scale factor of the smaller figure to the l

Vinvika [58]

Question 8:

Your choice is correct: two figures are similar if all correspondant sides are in the same ratio.

In your case, the figure on the right have correspondant sides which are all three times the figure on the left, since

$12 = 4\times 3, 21 = 7\times 3, 54 = 18\times 3$

So, the two figures are similar and their ratio is 1:3.

Question 9:

We follow exactly the same approach: let's see if the radii and the heights are in the same ratio: the radii are in ratio

$\cfrac{3.2}{2} = 1.6 = \cfrac{16}{10} = \cfrac{8}{5}$

While the heights are in ratio

$\cfrac{6.4}{4} = 1.6 = \cfrac{16}{10} = \cfrac{8}{5}$

So, the answer is again yes, they are similar, and the ratio is 1.6.

8 0

3 years ago

Read 2 more answers

Solve each equation by graphing. Round to the nearest tenth. 6x^2+18x=0

atroni [7]

I hope this helps you

6 (x^2+3x)=0

x (x+3)=0

x=0

x+3=0

x= -3

3 0

3 years ago