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KonstantinChe [14]
2 years ago
5

What is the mean of the following set of numbers?

Mathematics
2 answers:
polet [3.4K]2 years ago
8 0

The mean is the same as the average!

To find mean ...

  1. add up <u>all </u>the numbers

121+

347+

45+

21+

300+

614+

312+

333+

421

__________________

2,514

  • Then we divide by <u>how many numbers there are total </u>

\frac{2,514}{9}  = 279.33

Final answer is D. (279.3)

amm18122 years ago
5 0

Answer:

C. 279.3

Step-by-step explanation:

To find the mean of a set of numbers you have to add all of them together and divide them by how manys numbers there are

If we add all the numbers together it equals 2514

There are 9 numbers here

2514/9=279,333333

Therefore, the answer is C

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A lighthouse is located on an island 200 feet from the shore of the mainland as
Deffense [45]

Answer: Approximately d = 208.72

============================================================

Work Shown:

Make sure your calculator is in radian mode

A quick way to check is to compute cos(pi) and you should get -1

cos(angle) = adjacent/hypotenuse

cos(x) = 200/d

cos(0.29) = 200/d

d*cos(0.29) = 200

d = 200/cos(0.29)

d = 208.715135166392 which is approximate

d = 208.72

I rounded to two decimal places since x is rounded in that manner as well. Round however else you need if your teacher instructs.

4 0
2 years ago
Someone help me I forgot about this I need the answer
bekas [8.4K]
The answer is B because -3.62 is less than -3.5 and greater than -3.8.
8 0
3 years ago
Samuel consumed 2161 calories of food on​ Monday, 2378 calories on​ Tuesday, and 1841 calories on Wednesday. In order for​ Samue
german
Number of calories consumed on Monday = 2161
Number of Calories consumed on Tuesday = 2378
Number of Calories consumed on Wednesday = 1841
Daily average intake is 2200
Let calories intake on Thursday be X

Now ,

Average = sum of total calories/ number of calories

=> 2200 = 2161+2378+1841+X/4

=> 2200 x 4 = 6377 + X

=> 8800 = 6377 + X

=> X = 8800-6377

=> X = 2423

So Samuel must consume 2423 calories on Thursday
3 0
2 years ago
What is the value of b in the equation 3b + 2(b - 1) =8
WARRIOR [948]

Answer:

b = 2

Step-by-step explanation:

In order to find the value of b, we have to isolate b on one side of equation first

So,

3b+2(b-1)=8

Multiplying 2 with b-1

3b+2b-2=8\\5b-2=8

Adding 2 on both sides

5b-2+2=8+2\\5b=10

Dividing by 5 on both sides

\frac{5b}{5}=\frac{10}{5} \\b=2

So the value of b is 2 ..

6 0
3 years ago
Read 2 more answers
Find the measurement of either the leg or the hypotenuse: A = B = 21 C =<br> 35
Varvara68 [4.7K]

Answer: x = 40.81 or 41

Step-by-step explanation:

A = B = 21

C = 35

Hypotenuse = x

Calculating Hypotenuse:

21^2 + 35^2 = x^2

=> 441 + 1225 = x^2

=> x^2 = 1666

=> x = 40.81 or 41

5 0
3 years ago
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