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Angelina_Jolie [31]
3 years ago
11

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

Mathematics
1 answer:
Olenka [21]3 years ago
4 0

Answer:

what is cos and sin ?

Step-by-step explanation:

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Nonamiya [84]
M is a letter your welcome
3 0
3 years ago
What is the measure of ∠S ?
jeka94

Alright, lets get started.

We could use sine law to find the remaining angle.

\frac{sinA}{a} =  \frac{sinB}{b}

\frac{sinS}{63.6}  = \frac{sin64}{69.8}

Plugging the value of sin 64

\frac{sinS}{63.6} =  \frac{0.8987}{69.8}

\frac{sinS}{63.6} = 0.01287

Cross multiplying

sin S = 0.8189

Taking inverse on both side

S = sin^{-1}(0.8189)

S = 55° : Answer

Hope it will help :)



4 0
3 years ago
Read 2 more answers
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What is the complete question and what are the choices??
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Oliver read for 450 minutes this month. His goal to read for 10% more minutes next month. If Oliver meets his goal, how many min
sesenic [268]

Answer: 945

Step-by-step explanation:

this month = 450.

next month 450x10/100=45, 450+45= 495

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4 0
3 years ago
Square root 1.96? is rational irrational
Kruka [31]

Answer:

Rational

Step-by-step explanation:

An irrational number is a number with forever continuing decimals. Plug it into the calc and you can see if there is a long decimal line that ends. You should get 1.4 in the calc, and since it does end, it is a rational number.

4 0
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