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Angelina_Jolie [31]
2 years ago
11

10. Solve the following equations a) Cos Ɵ = -1/2 b) -18 Sin Ɵ + 9 = 0

Mathematics
1 answer:
Olenka [21]2 years ago
4 0

Answer:

what is cos and sin ?

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B18%20%5Ctimes%2018%20%5Ctimes%204%7D%20" id="TexFormula1" title=" \sqrt{18 \times
nalin [4]

Answer:

36

Step-by-step explanation:

Note that if there are two of the same number multiplied within a root, it becomes a whole number

√18 x √18 = 18

Next, simplify √4.  Factor the number:

√4 = √(2 x 2) = 2

Multiply: 18 x 2 = 36

36 is your answer

~

4 0
3 years ago
If f(x)=2x^2+5 square root (x-2) complete the followinf statement: f(3)=
12345 [234]

Answer:f(3) =  23


Step-by-step explanation:

2(3)² + 5√(3 - 2)  

f(3) = 2(9) + 5√(1)  

f(3) = 18 + 5(1)  

f(3) = 18 + 5  

f(3) = 23

4 0
3 years ago
scale drawing: Steve drew a scale drawing of the town library. The parking lot, which is 45 meters wide in real life, is 126 cen
Veseljchak [2.6K]

Answer:

1.05 cm = 75 cm

Step-by-step explanation:

First, convert 45 meters into centimeters. You will get 4500 centimeters. Then, convert the numbers into a fraction form (126/4500). Divide the numerator and denominator by 15 to get 4.2/300. If you then divide them both by 4 you will get 1.05/75. This means that every 1.05 cm on the paper represents 75 cm of the real life lot.

7 0
3 years ago
A company sells crushed rock in 16 pound bags.each bags contains a mixture of quartz and marble
Alja [10]
What’s the question??? I can’t answer bc no question
6 0
3 years ago
15. Ms. Mason is a kindergarten teacher whose gross income last year was $34,200. She made a $2000 contribution to an IRA. If sh
julia-pushkina [17]

Answer:28350?

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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