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asambeis [7]
3 years ago
14

HELP!!!!! WILL MARK BRAINLIEST 10 POINTS

Mathematics
1 answer:
vichka [17]3 years ago
7 0
Josh is incorrect, he did not examine the expression correctly, therefore his answer was wrong.

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Based on data in the two way table which statement is true
Korolek [52]
Can you please add the statement? Then I may be able to help you... Thanks!
6 0
3 years ago
Read 2 more answers
State the domain of the sets of points. [-4,9] [8,9] [5,-7] [-6,1] [2,7]
Ainat [17]

Answer:

[-6, -4, 2, 5, 8]

Step-by-step explanation:

take the first number in each pair and put them in numerical order (least to greatest)

3 0
3 years ago
Use the sum and difference identities to find the exact values of the sine, cosine, and tangent of the angle. . 165 = 135 + 30
Serhud [2]
So lets get to the problem 

<span>165°= 135° +30° </span>

<span>To make it easier I'm going to write the same thing like this </span>
<span>165°= 90° + 45°+30° </span>

<span>Sin165° </span>
<span>= Sin ( 90° + 45°+30° ) </span>
<span>= Cos( 45°+30° )..... (∵ Sin(90 + θ)=cosθ </span>
<span>= Cos45°Cos30° - Sin45°Sin30° </span>

<span>Cos165° </span>
<span>= Cos ( 90° + 45°+30° ) </span>
<span>= -Sin( 45°+30° )..... (∵Cos(90 + θ)=-Sinθ </span>
<span>= Sin45°Cos30° + Cos45°Sin30° </span>


<span>Tan165° </span>
<span>= Tan ( 90° + 45°+30° ) </span>
<span>= -Cot( 45°+30° )..... (∵Cot(90 + θ)=-Tanθ </span>
<span>= -1/tan(45°+30°) </span>
<span>= -[1-tan45°.Tan30°]/[tan45°+Tan30°] </span>

<span>Substitute the above values with the following... These should be memorized </span>
<span>Sin 30° = 1/2 </span>
<span>Cos 30° =[Sqrt(3)]/2 </span>
<span>Tan 30° = 1/[Sqrt(3)] </span>
<span>Sin45°=Cos45°=1/[Sqrt(2)] </span>
<span>Tan 45° = 1</span>
4 0
3 years ago
In a group of 60 students, 18 students take algebra i, 20 students take algebra ii, and 10 students take both subjects. how many
nadya68 [22]

Answer:

  32

Step-by-step explanation:

The number that take algebra i includes those who take both subjects, as does the number taking algebra ii. Then the number taking algebra i alone is ...

   18 -10 = 8 . . . . . take only algebra i

So the number taking any kind of algebra is ...

  20 + 8 = 28

and the number not taking either subject is ...

  60 -28 = 32 . . . not taking either subject

8 0
3 years ago
Which expressions are equivalent to 3x+3(x+y)?
storchak [24]

Answer:  6x+3y

Step-by-step explanation:

3x+3(x+y)= 3x+3x+3y=6x+3y

6 0
3 years ago
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