2 years ago

5. The fourth graders are going to the

Mathematics

1 answer:

Llana [10]2 years ago

5 0

Answer:

14 rows. Hope this helped :) !

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X=2π/3

Marina86 [1]

Answer:

$cos{\frac{2\pi}{3}}=-\frac{1}{2}$ .

Reference angle is $\frac{\pi}{3}$

Step-by-step explanation:

Given the value of x. we have to find the correct value of cosx.

$x=\frac{2\pi}{3}$

Now, we have to find the exact value of $cos{\frac{2\pi}{3}}$

$cos{\frac{2\pi}{3}}=cos(\frac{\pi}{2}+\frac{\pi}{6})$

$=-sin(\frac{\pi}{6})$

$=-\frac{1}{2}$

Now, we have to find the reference angle of $x=\frac{2\pi}{3}$ .

Since the angle $x=\frac{2\pi}{3}$ lies in second quadrant, the reference angle formula is

Reference angle= $\pi-given angle$ .

= $\pi-\frac{2\pi}{3}=\frac{\pi}{3}$

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2 years ago

One gym costs $24 per month and has a joining fee of $135. Another gym costs $39 per

Evgesh-ka [11]

Answer:

9 months

Step-by-step explanation:

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3 years ago

Draw an array for the equation 5+5+5=15

kicyunya [14]

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I'm not for sure if this is what you meant though sorry

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3 years ago

Randy walks 1/2 mile in each 1/5 hour. How far did randy walk in 1 hour in decimal

Lerok [7]

there are 5 1/5 in an hour

so multiply 1/2 by 5

1/2 = 0.5

0.5 *5 = 2.5 miles in 1 hour

5 0

3 years ago

Can someone please help me :(

olchik [2.2K]

Answer:

Step-by-step explanation:

2x + 1 = -3x + 6

add 3x

5x + 1 = 6

subtract 1

5x=5

Divide by 5

x=1

If this is correct, please mark brainliest!

4 0

2 years ago

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