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oksano4ka [1.4K]
3 years ago
10

Over the interval [0, 2pi), what are the solutions to cos(2x) = cos(x)? Check all that apply.

Mathematics
2 answers:
Nikolay [14]3 years ago
6 0

Answer:0, 2pi/3, 4pi/3

Step-by-step explanation:

did on edge

den301095 [7]3 years ago
4 0

Answer:

Step-by-step explanation:

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It takes 15 minutes to fill a 375 gallon tank with oil how many gallons are pumped into the tank in 1 minute
Nikitich [7]

Answer:

25

Step-by-step explanation:

It takes 15 minutes to fill a 375 gallon tank with oil how many gallons are pumped into the tank in 1 minute

375÷15=25

5 0
3 years ago
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Which statements can be used to prove that ABC and A’B’C are congruent?
Nadusha1986 [10]

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O A.

Step-by-step explanation:

<u>Option A</u> identifies two angles (sufficient for similarity) and one side, sufficient (with similarity) for congruence. The applicable congruence theorem is AAS.

<u>Option B</u> identifies two sides and the angle not between them. The two triangles will be congruent in that case only if the angle is opposite the longest side, which is <u>not true</u> in general.

<u>Option C</u> same deal as Option A.

<u>Option D</u> identifies three congruent angles, which will prove the triangles similar, but not necessarily congruent.

7 0
3 years ago
Yee dealin with a dummy wats 3÷3/10 ​
daser333 [38]

Answer:

0.1 I believe would be your answer

3 0
3 years ago
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Three times the sum of a number and 4 is the same as 18 more than the number
11Alexandr11 [23.1K]
First, figure out what you do and don't know....
You do know that 3 times the sum of a number and 4 is 18 more than the number....you don't know the number so you make it the variable x 
now take 3 times the sum of a number and 4 and make that an expression 3x+4 this expression is the same or equal to the sum of x and 18 x+18
3x+4=x+18
2x+4=18
2x=14
x=7
hope this helped :)
         
5 0
3 years ago
A right triangle has one side that measures 4 in. The angle opposite that side measures 80°. What is the length of the hypotenus
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Since you have an angle and at least one side you can use either sine, cosine or tan. For this question, you would use sine like above. Hope this helps!

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3 years ago
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