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Kamila [148]
2 years ago
11

Cos (90 - x) = -0.2. What is sin(x)?

Mathematics
2 answers:
PIT_PIT [208]2 years ago
5 0

Your answer is here :-[

Aloiza [94]2 years ago
4 0

Answer:

-0.2

Step-by-step explanation:

Sine and cosine are co-functions.

That means, cos(90-x)=sin(x) or sin(90-x)=cos(x).

So here since cos(90-x)=-0.2, then sin(x)=-0.2.

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Grace and her dad are planning to attend the state fair. An adult ticket is $15.00. The price of an adult ticket is one half the
Aleks04 [339]

Answer:

The equation is 1/2 x + 8 = 15 ⇒ answer A

Step-by-step explanation:

* Lets explain how to solve the question

- Grace and her dad are planning to attend the state fair

- The price of an adult ticket is $15

- The price of the adult ticket is one half the price of the student ticket

  plus $8

- Assume that the price of the student ticket is x

∵ The price of the student ticket is x

∵ The price of the adult ticket is half the price of the student ticket

   x plus 8

- lets multiply half by x and then add the result by 8

∴ The price of the adult ticket = 1/2 x + 8

∵ The price of the adult ticket is $15

- Equate the expression of the price of the adult ticket by the price of

 the adult ticket

∴ 1/2 x + 8 = 15

* The equation to determine how much Grace will pay for a student

  ticket is 1/2 x + 8 = 15

∴ The answer is choice A

8 0
3 years ago
20 pts if you answer<br><br> I REPORT UNNECESSARY ANSWERS
Komok [63]

Answer:

C) 1/12

Step-by-step explanation:

P(2) = 1/6

P(Tail) = 1/2

1/6 × 1/2

1/12

7 0
3 years ago
maya purchased a prepaid phone card for $25.00. Calls cost 25 cents a minute using this card. the credit, C (in dollars), left o
Kay [80]

Answer:

$20 of credit left on the card

Step-by-step explanation:

If we say that the prepaid phone card has 25 minutes on it since Maya paid 25 dollars for it. We can multiply 25 times 4 which equals 1 dollar per 4 minutes. Then, we can divide 20 by 4 to get 5 which means that she used 5 dollars of call time. We can now subtract 25-5 and we get 20. This tells us that there is 20 dollars left on the card.

Hope this helps!!! PLZ MARK BRAINLIEST!!!

4 0
3 years ago
Estimate:<br> √5 + √15 <br><br> 8<br><br> 4<br><br> 6
aleksandrvk [35]
x= \sqrt{5} + \sqrt{15}
x^{2} =( \sqrt{5} + \sqrt15} )^2
= 5 + 15 + 2 √5√5√3
=20 + 10√3
≈20+16
≈36

x≈6
6 0
3 years ago
A transformation named t maps triangle xyz to triangle x'y'z' the image of y is ?
Svetllana [295]
Y'

The way the transformation is written tells which point goes where; the first point x is mapped to point x', y goes to y', z goes to z'.

6 0
3 years ago
Read 2 more answers
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