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Inga [223]
3 years ago
15

Knowing that sin 30= 1/2, what is a?

Mathematics
2 answers:
anyanavicka [17]3 years ago
6 0

Step-by-step explanation:

I hope it's correct

HAVE A GOOD DAY!

Vadim26 [7]3 years ago
3 0

Answer:

10

Step-by-step explanation:

You might be interested in
The Ratio of men to women in a certain factory is 3 to 4. There are 198 men. How many workers are there?
klemol [59]

So 3:4::198:?. 3 is to 198 as 4 is to ?. You're solving for ? so you want that on the top of the fraction. 4/3=?/198. Multiply both sides by 198. ?=(4/3)(198)=264 women. Then add the men. 264+198=462 workers.

Check your work. (462/7)*3=198 men.

4 0
3 years ago
Read 2 more answers
Marguerite is building a box from strips of wood. She needs 78 pieces of wood that are each 29 centimeters long. The wood comes
Mrrafil [7]
First what you need to do is make 6meters into centimetres so what how many meters in a centimetre
100cm so you do 100 x 6= 600
After that you do 600 divided by 28 then by 78 then you will find the answer.
4 0
3 years ago
The function f(r) = π determines the area of a circle in cm2, A, in terms of the radius of the circle in cm, r. a. Write a funct
ollegr [7]

Answer with Step-by-step explanation:

We are given that

a.f(r)=\pi r^2

A=\pi r^2

r^2=\frac{A}{\pi}

g(A)=r=\sqrt{\frac{A}{\pi}}

b.Radius=2.58 cm

Substitute the values in the formula and \pi=3.14

f(2.58)=3.14(2.58)^2=20.9 cm^2

Hence, the area of circle =20.9 square cm

c.Area of circle=1530 square cm

r=\sqrt{\frac{1530}{3.14}}=22.07 cm

Hence, the radius of circle=22.07 cm

c.Area of circle of radius 15.2 cm=A_1=3.14(15.2)^2=725.47 cm^2

Area of circle of radius 15.1 cm=A_2=3.14(15.1)^2=715.95 cm^2

A_1-A_2=725.47-715.95=9.52 cm^2

Hence, the area of circle whose radius is 15.2 cm is greater than the area of circle of radius 15.1 cm by 9.52 square cm .

6 0
3 years ago
Samantha is selling raffle tickets for $1.50 each. At the end of the night she knows that she has made at most $84 in sales. If
7nadin3 [17]

Answer:

1.50n≤84

Step-by-step explanation:

The statement indicates that Samantha knows that she has made at most $84 in sales and this means that that is the higher amount she thinks she can have. So, the total amount could be less than that or equal to that. Also, the total amount she has would be the result of multiplying the price per ticket for the number of tickets sold. Moreover, this amount would be less than or equal to 84 and the symbol that represents less than or equal to is ≤. According to this, the inequality that would model the information is: 1.50n≤84.

4 0
3 years ago
Blaine bought a bag of 20 apples. When she got home, she found that 20%
photoshop1234 [79]

Answer:

4

Step-by-step explanation:

20 percent * 20 =

(20:100)* 20 =

(20* 20):100 =

400:100 = 4

I hope this helped you! If it did, please consider rating, pressing thanks, and giving my answer 'Brainliest.' Have a great day! :)

3 0
3 years ago
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