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3 years ago

If θ is an acute angle and sin θ = 2 1 , then cos θ =

1 answer:

3 0

First of all i think theres a mistakein the question;
i think it is sin θ = $\frac{1}{2}$

and then sin 30° = $\frac{1}{2}$

thus θ= 30° $\frac{ \sqrt{3} }{2}$

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Mega Movies hosted a film premiere on Friday night. They charged $9 for adults and $5 for children. One hundred sixty-one adults

RUDIKE [14]

D.
15 children*5= $75
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8 0

3 years ago

Read 2 more answers

Question 7 (1 point)

zepelin [54]

Answer:

-1.75

Step-by-step explanation:

The z-score = (n - m) / d where n is the value (13) m = mean and d = standard deviation.

= (13 - 20) / 4

= -1.75 (answer)

5 0

3 years ago

One side of a square has endpoints (4.7) and (-3,5). What is the perimeter of the square?

Goryan [66]

Answer:

= 4√53 units

that is option(a)

Step-by-step explanation:

all sides of the square are of the same length

so if we get the length if this side, we can calculate its perimeter

there's this formula,

side length between two points, let's say A(x, y) and B(p, q), is equal to 

$\mathsf{ \sqrt{ {(x - p)}^{2} + {(y - q)}^{2} } }$

so here we go,

the same points A and B here are

(4, 7) and (-3, 5)

therefore, side length :-

$= \mathsf{ \sqrt{( {7 - 5})^{2} + {(4 - ( - 3))}^{2} } }$

$= \mathsf{ \sqrt{ {2}^{2} + {7}^{2} } }$

$= \mathsf{ \sqrt{4 + 49} }$

$= \mathsf{\sqrt{53} }$

the side length comes out to be √(53) 

now perimeter of a square is

4 × side length

= 4√53 units

4 0

3 years ago

Simplify:

Ierofanga [76]

A) x^1/6 + 2x^2/33

If you multiply each one of the exponents in the parentheses by the exponent outside the parentheses you get the answer.

3 0

3 years ago

If an angle measures three times the measure of its supplementary angle. find the measure of both angles

BARSIC [14]

I pooped mysels so can’t figure it out

3 0

3 years ago