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stellarik [79]
2 years ago
5

Which of the following is a prime number? Select one: A. 19 B. 20 C. 21 D. 22

Mathematics
2 answers:
7nadin3 [17]2 years ago
8 0

Answer:

A. 19

Step-by-step explanation:

The rest wouldn't be considered prime number. Only 19

nexus9112 [7]2 years ago
6 0

Answer: a. 19

Step-by-step explanation:

it only has 1 and itself

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An angle measures 44° less than the measure of its complementary angle. What is the measure of each angle? ​
Alchen [17]

Answer:

One angle is 46° and the other angle is 44°

Step-by-step explanation:

Complementary angle means the angles add up to 90 so:

90 - 44 = 46

6 0
3 years ago
Please help 20-23 it is 6th grade math and it is due October 16 please I really need help we are doing simplifying expressions a
mel-nik [20]
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8 0
3 years ago
15. Over what range of angles does the value of sin(O) consistently increase?
Ronch [10]

Answer:

D. 0° to 90°

Step-by-step explanation:

If we see curve of sin(o) on coordinate,  we will notice that value of sin curve increases from 0 to 90 degrees and then decreases from 90 to 180 degrees.

Hence option D is correct.

Alternatively

we see that

sin 0 = 0

sin 30 = 1/2

sin 45 = 1/\sqrt{2}

sin 60 = \sqrt{3} /2

sin 90 = 1

Thus, we see  that value of sin is increasing from 0 to 90

now lets see value of sin from 90 to 180

sin 90 = 1

sin 120 = \sqrt{3} /2

sin 135 = 1/\sqrt{2}

sin 150 = 1/2

sin 180 = 0

Thus, we see  that value of sin is decreasing from 90 to 180.

8 0
3 years ago
What is 3 examples of a rate?
atroni [7]

Answer:

Step-by-step explanation: For example, if a 12 ounce can of corn costs 55 cents the rate is 55 cents for 12 ounces. The first term in ratio is measured in cents the second term in ounces

5 0
3 years ago
On a recent day, one U.S dollar was worth 0.81 euros. If you were to exchange 222 euros, how many U.S dollars would you receive?
Juli2301 [7.4K]

<em>Answer:</em>

<em>254.22</em>

<em>Step-by-step explanation:</em>

<em>222 euros equal 254.22</em>

7 0
3 years ago
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