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lesya692 [45]
3 years ago
13

2 angles are said to be complementary if their sum is what?​

Mathematics
2 answers:
muminat3 years ago
4 0

Answer:

90°

Step-by-step explanation:

Complementary angles sum to 90°

Supplementary angles sum to 180°

9966 [12]3 years ago
3 0

Answer:

90°

Step-by-step explanation:\\

An example is:

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Leda makes 73 oatmeal muffins for a bake sale. She accidentally drops five of them and throws them away. She puts as many of the
mamaluj [8]

Answer:

3 oatmeal muffins

Step-by-step explanation:

First, subtract the 5 muffins she dropped from the total:

73 - 5

= 68

Then, divide this by 13:

68/13

= 5.23

We need a whole number of muffins in each container, so round this down to 5.

This means that there can be 5 muffins in each of the 13 containers.

Find how many will be leftover:

5(13)

= 65

68 - 65

= 3

So, there will be 3 oatmeal muffins left

5 0
3 years ago
A mixture of pulverized fuel ash and Portland cement to be used for grouting should have a compression strength of more than 130
nekit [7.7K]

Answer:

The null hypothesis is: u >= 1300 KN/m^2

And the alternative hypothesis is:

u < 1300 KN/m^2.

Step-by-step explanation:

The null hypothesis describes hat there is no difference or assiciation between variables of a specific population or that it is a particular average value while the alternative hypothesis states otherwise.

In this case study, the null hypothesis is: u >= 1300 KN/m^2

And the alternative hypothesis is:

u < 1300 KN/m^2.

7 0
3 years ago
When 4 is added to three times of a number, the answer is the same as subtracting 2 from the number. What is the number ?
Orlov [11]

Answer:

- 3

Step-by-step explanation:

let n be the number , then

3n + 4 = n - 2 ( subtract n from both sides )

2n + 4 = - 2 ( subtract 4 from both sides )

2n = - 6 ( divide both sides by 2 )

n = - 3

The number is - 3

7 0
3 years ago
This subject is on integers
antoniya [11.8K]

Answer:

|-8| = 8

Step-by-step explanation:

legit just the opposite of the integer.

8 0
3 years ago
Anna has 1/2 pound of trail mix. She evenly divided the trail mix into 4 bags. How much is in each bag
trasher [3.6K]

Answer:

 

1/8 pound of trail mix in each bag.

Step-by-step explanation:

She divides it into  bags

4 1/2 ÷ 4 = 1/2 x 1/4 = 1/8 pound

3 0
3 years ago
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