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4 years ago

The united states is one of the few countries that does not fully use the metric system for measurement. true false

Mathematics

1 answer:

maksim [4K]4 years ago

5 0

True and I guess it wants a longer answer so I'll say "true" again

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What is the solution to the equation -3(h+5)+2 = 4(n+6)-9

elixir [45]

here is your answer. i think i did it right.

6 0

3 years ago

Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation i

Mnenie [13.5K]

Answer:

The population mean = sample mean = x`= 67.5

Population standard deviation = 13.369

Sample standard deviation= 4.225

Step-by-step explanation:

AS the population mean is not given we will calculate it from the sample.

The mean of the sampling distribution is equal to the population mean .

The sample mean is calculated by

x`= ∑x/n= 75,+ 62, +69,+65,+66,+64, +67,+70,+74 + 63/10

x`=675/10= 67.5

The standard deviation of the sample is equal to

u = σ/ √n where σ is the population standard deviation and n is the number of observations.

Calculating the sample mean

s= √∑xi²/n- (∑x/n)²

s= √(45741/10)- (675/10)²

s= 4.2249

σ= u*√n= 4.229 *√10

σ=13.360

3 0

3 years ago

I'm trying to figure this problem out

LenKa [72]

If it the one that says which double fact should you use for
6+5

it would be 5+5
which is 10 and then you could add the 1

5 0

3 years ago

Read 2 more answers

Q # 4 Simplify the product

timama [110]

For this case we have the following product:
$(x-4) (x + 3)
$
We must use the distributive property correctly to solve the problem.
We have then:
$x ^ 2 + 3x - 4x - 12
$
Then, we must add similar terms.
We have then:
$x ^ 2 - x - 12
$
Answer:
The final product is given by:
$x ^ 2 - x - 12
$
option 2

8 0

3 years ago

What is the difference? 4/3 - 7/9 a. - 1/2 b. -1/3 c. 5/9 d 11/12

ANTONII [103]

4/3-7/9

= (36-21) /27

= 15/27

= 5/9 which is C

5 0

3 years ago

Read 2 more answers