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3 years ago

NI - 16 2 Which of the following is equivalent to O 6 08 O 12 O 64

Mathematics

1 answer:

34kurt3 years ago

5 0

Answer:B

Step-by-step explanation:

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Solve for x. 8(9x-4)-2=3+2

gavmur [86]

So first you have to move the -2 over to the opposite side.
8(9x-4)=3+2+2
Then you can simplify the right side
8(9x-4)=7
Then you distribute
8*9x=72x
8*-4=-32
so now you have...
72x-32=7
Then you move the 37 over
72x=39
Then you divide by 72 to isolate x
x=39/72 or x= 13/24 or x=0.54167

6 0

2 years ago

What is m∠1?............

gogolik [260]

the answer is 148

hope that helped lol

8 0

2 years ago

Assume that trees are subjected to different levels of carbon dioxide atmosphere with 7% of the trees in a minimal growth condit

taurus [48]

Answer: The mean and standard deviation are 567.2 and 89.88 resp.

Step-by-step explanation:

Since we have given that

For 370 parts per million = 7% = 0.07

For 440 parts per million = 10% = 0.10

For 550 parts per million = 49% = 0.49

For 670 parts per million = 34% = 0.34

So, Mean of the carbon dioxide atmosphere for these trees would be

$E[x]=370\times 0.07+440\times 0.1+550\times 0.49+670\times 0.34=567.2$

And

$E[x^2]=370^2\times 0.07+440^2\times 0.1+550^2\times 0.49+670^2\times 0.34=329794$

So, Variance would be

$Var\ x=E[x^2]-E[x]^2=329794-567.2^2=8078.16$

So, the standard deviation would be

$\sigma=\sqrt{8078.16}=89.88$

Hence, the mean and standard deviation are 567.2 and 89.88 resp.

3 0

3 years ago

A) 5/13 B) 5/12 C) 12/13 D) 12/5

shutvik [7]

Answer:

the answer would be C.... 12/13

4 0

2 years ago

Meghan reduced the size of a rectangle to a height of 2 inches. What is the new width if it was originally 24 inches wide and 12

Zigmanuir [339]

Answer:

Step-by-step explanation:

2/12 = 1/6

24 * 1/6 = 4

12/24 = 2/x

12 x = 48

x = 4

or the original width was twice the length

twice 2 is 4

3 0

3 years ago