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3 years ago

Cos(x) = 2.3 how do I find x?

1 answer:

mote1985 [20]3 years ago

7 0

I don't think you can find x in this case. Cosine can only go as low as -1 and as high as 1. Since 2.3 is more than 1, the answer does not exist

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Divide the sum of 8 and 12 by 4

Nonamiya [84]

Answer:

12+4/8

Step-by-step explanation:

sum means add and you need to divide 8 by whatever 12 and 4 equal

12+4= 16

16/8=2

8 0

3 years ago

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What is the change in temperature from 15° to -9°? (the choices in the docx)

morpeh [17]

I would say D because 15 to -9 would be going down 24.

4 0

3 years ago

Please answer the question i will give brainliest A. 1/3 B. - 1/3 C. -3 D.3

daser333 [38]

Step-by-step explanation:

the answer would be a. 1/3

6 0

2 years ago

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A square garden is 50 inches long on each side.What is the length of the perimeter in feet?

leva [86]

Answer:

50/3 feet

Step-by-step explanation:

A square has 4 equal sides, so the perimeter is 4*50, or 200 inches.

But we want the answer in feet. There are 12 inches in a foot, so the perimeter in feet is 200/12 or 50/3 feet.

5 0

3 years ago

Ardem collected data from a class survey. He then randomly selected samples of five responses to generate four samples.

scoundrel [369]

Solution: The sample mean of sample 1 is:

$\bar{x}=\frac{4+5+2+4+3}{5}= \frac{18}{5}=3.6$

The sample mean of sample 2 is:

$\bar{x}=\frac{2+2+6+5+7}{5}= \frac{22}{5}=4.4$

The sample mean of sample 3 is:

$\bar{x}=\frac{4+6+3+4+1}{5}= \frac{18}{5}=3.6$

The sample mean of sample 4 is:

$\bar{x}=\frac{5+2+4+3+6}{5}= \frac{20}{5}=4$

The minimum sample mean of the four sample means is 3.6 and maximum sample mean of the four sample means is 4.4.

Therefore, using his four samples, between 3.6 and 4.4 will Ardem's actual population mean lie.

Hence the option 3.6 and 4.4 is correct

6 0

3 years ago

Read 2 more answers