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3 years ago

What is the exact value of sec(-405degress)?? ...?

1 answer:

3 0

Sec= 1/(cos), you can add or subtract 360 degrees from any angle measurement without changing the value of any of the trig functions i.e. 405 degrees= 405-360=45. cos of 45 is sqrt(2)/2 so sec405= 2/sqrroot2

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Find the arc length of the partial circle. <br>length is 1.<br>**See attached photo**<br>

KatRina [158]

Arc length of the quarter circle is 1.57 units.

Solution:

Radius of the quarter circle = 1

Center angle (θ) = 90°

To find the arc length of the quarter circle:

$$\text{Arc length}=2 \pi r\left(\frac{\theta}{360^\circ}\right)$

$$=2 \times 3.14 \times 1\left(\frac{90^\circ}{360^\circ}\right)$

$$=2 \times 3.14 \times 1\left(\frac{1}{4}\right)$

Arc length = 1.57 units

Arc length of the quarter circle is 1.57 units.

5 0

3 years ago

A Pell Grant is a type of financial aid that does not need to be paid back. true or false

Inga [223]

I think the answer is true.

6 0

3 years ago

1/3 of students at a school are boys. If there are 600 students at the school, how many are girls?

Temka [501]

Answer:

200 students are boys and rest of 400 are girls

Step-by-step explanation:

Given that:

Total students = 300

1/3 students of total are boys

so.

Boys = 1/3(600)

Boys = 200

For finding number of girls:

Girls = total - boys

Girls = 600 - 200

Girls = 400

i hope it will help you!

8 0

3 years ago

Read 2 more answers

Which logarithmic function has x=5 as its vertical asymptote and (6,0) as the x-intercept?

Jet001 [13]

The answer is f(x)=log(x-5)

8 0

3 years ago

X/-5+3=-2 <br> What is it step by step

son4ous [18]

Answer:

Step-by-step explanation:

X/-5+3=-2

Collecting like terms

x/-5 = -2 - 3

x/-5 = -5

Multiply each term by -5

-5(x/-5) = -5(-5)

x = 25

7 0

3 years ago