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Ronch [10]
3 years ago
5

Select the correct answer from each drop-down menu. Complete the statement. The solutions of sin2x= √3/2

Mathematics
1 answer:
alex41 [277]3 years ago
7 0

Answer:

henc X = 30°

Step-by-step explanation:

here is the proof

when X=30° then

sin2x = sin2×30

=sin 60°

= √3/2

or else,

putting value of X = 30° then

sin2x= 2sinxcosx

= 2×sin30°×cos30°

=2×1/2×√3/2

= 2√3/4

= √3/2

hence proved sin2x= √3/2.

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Answer:

300 dollars

Step-by-step explanation:

60% of 500

(60/100) * 500 = 300

4 0
3 years ago
An expression is shown: martha evaluates the expression using these steps: step 1: step 2: step 3:
earnstyle [38]

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Step-by-step explanation:

8 0
3 years ago
The number 7 is what percent of 80
xz_007 [3.2K]

Answer:

5.6

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3 0
3 years ago
2 women and 7 girls can do a peice of work in 4 days.4 women and 4 girls can do the same work in 3 days. How long would it take
svetlana [45]

Answer:

x: work a woman can do in 1 day

y: work a girl can do in 1  day

Then

2x + 7y =1/4

4x + 4y =1/3

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4x + 4y  =1/3 (2)

=> Let (1) - (2), 10y =2/4-1/3 <=>10y = 1/6 <=> y = 1/(6x10) = 1/60 (work)

=> From (2),4x = 1/3 - 4x1/60 => 4x = 16/60 => x = 4/60 (work)

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Then, the day required for a woman and a girl to complete work: 12 days

3 0
3 years ago
What is the value of the expression 3y−zy+5z3y−zy+5z when y = 6 and z = 2?
WARRIOR [948]
The valve of the expression would be 184
6 0
3 years ago
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