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Makovka662 [10]
3 years ago
13

I need help please help me :(

Mathematics
2 answers:
Anastasy [175]3 years ago
7 0

Answer:

A. 3

Step-by-step explanation:

\frac{21}{7}

REMEMBER to MULTIPLY FIRST!!

21 / 7 = 3

Elanso [62]3 years ago
6 0

Answer:

a:3

Step-by-step explanation:

12+9=21

2 times 2 is 4, and 4 +3 is 7, so 21 divided by 7 is 3.

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Find the perimeter of the rectangle on the centimeter grid​
Tatiana [17]

Answer:

24 centimeters

Step-by-step explanation:

You can just count the squares around the rectangle since each of those squares is a centimeter. Hence the name centimeter grid.

3 0
3 years ago
If 43 photocopies cost $25.80, how much does one photocopy cost
juin [17]

each photocopie cost .60 cents

8 0
3 years ago
Statistical Tests? Indicate whether the following analysis involves a statistical test. If it does involve a statistical test, s
pashok25 [27]

Answer:

Yes, the given analysis involves a statistical test. Population parameter of interest = '% of community people living in mobile homes' (MH)

  • H0 : MH = 0.09
  • H1 : MH > 0.09

Step-by-step explanation:

Hypothesis testing is a statistical test, of testing an assumption (statement) about population parameter.

Null Hypothesis  [H0] is a neutral statement of 'no difference' about a population parameter; stating variable is no different than its mean.

Alternate hypothesis [H1] is the 'specific difference' stating hypothesis about a population parameter; contrary to the null hypothesis.

To determine if there is evidence for the claim that the percentage of people in the community living in a mobile home is greater than 9% :

This analysis can be done by using statistical test : one sided 't' test. The population parameter of interest would be '% of community people living in mobile homes' (MH)

  • H0 : MH = 9% → MH = 0.09
  • H1 : MH > 9% → MH > 0.09
4 0
3 years ago
Solve for x <br> 4x+3 X-8
Karo-lina-s [1.5K]
We know this angle is a 90° or a right angle. So another words we know adding these 2 expressions equals to 90°.

(4x + 3) + (x - 8) = 90°

Remove the parentheses and combine the like-terms:

5x - 5 = 90°

Add 5 on both sides:

5x = 95°

Divide 5 on both sides

x = 19

You answer is x = 19.
3 0
1 year ago
I want to rearrange the formula of 3+x=ax to find out what x is equal to. I already know the answer via the answer sheet but I w
taurus [48]

Answer:

See below.

Step-by-step explanation:

3+x=ax    (Given)

x=ax-3    (Subtracted 3 on both sides)

x-ax=-3    (Subtracted ax on both sides)

x(1-a)=-3    (Factor out x from x - ax)

x=-\frac{3}{1-a}    (Divided 1 - a on both sides)

7 0
3 years ago
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