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3 years ago

10

2 sine squared theta plus sine theta minus 1 equals 02sin2θ+sinθ−1=0

1 answer:

frutty [35]3 years ago

4 0

I did not even understand that equation

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Help Me Plz!!!!!!!!!!!!!

Strike441 [17]

Answer:

$a = 6\sqrt 3,\:\:b =12,\:\:c=6\sqrt 2$

Step-by-step explanation:

$by \: 30 \degree - 60 \degree - 90 \degree \: theorem \\ \\ 6 = \frac{1}{2} b\\ \\ 6 \times 2 = b \\ \\ 12 = b \\ \\ \huge\red {\boxed {b= 12}} \\ \\ a = \frac{ \sqrt{3} }{2} b \\ \\ a = \frac{ \sqrt{3} }{2} \times 12 \\ \\ \huge\purple {\boxed {a = 6 \sqrt{3}}} \\ \\ c = \frac{1}{ \sqrt{2} } b \\ \\ c = \frac{1}{ \sqrt{2} } \times 12 \\ \\ c = \frac{ \sqrt{2} }{2} \times 12 \\ \\ \huge\orange {\boxed {c = 6 \sqrt{2}}} \\ \\$

8 0

3 years ago

Movies are on sale for 3/

vredina [299]

Answer:

$7.50

Step-by-step explanation:

3/4 of the original price

Original price: $10

So we need 3/4 of $10

10 ÷ 4 = 2.5

2.5(3) = 7.5

3/4 of $10 = 7.5, so the price is now $7.50

6 0

3 years ago

Read 2 more answers

A plumber uses the expression 48 + 25h to determine the number of dollars to charge each customer. If h = 4, how much does the c

Firdavs [7]

Answer:

You just need to substitute 4 in for h.

So 48 + 25(4) = 48 + 100 = 148

4 0

2 years ago

Read 2 more answers

What is the quotient and remainder of 41 divided by 3

gavmur [86]

Answer:

13 is the quotient and the remainder is 2

13*3=39

39+2=41

Step-by-step explanation:

5 0

2 years ago

Evaluate the expression when <br><br> a = -4 and c=5.<br><br> 6c-a

igomit [66]

=26
Explanation: 6 x 5 (c) = 30 30 - 4 (a) =26
Hope that helps :)

8 0

2 years ago

Read 2 more answers