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3 years ago

File:///C:/Users/tia%20hilger/Downloads/Geo%20B%20%20Unit%204%20Lesson%206%20Sample%20Work%20(1).pdf

1 answer:

3 0

Answer for what, If that is a file then I can't get the file and it look like coding to me. Just ask the question so we could answer them.

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If cos A = 3 over 11, then which of the following is correct?

ziro4ka [17]

Answer: The answer is (a) sec A = 11 over 3.

Step-by-step explanation: Given that Cosine of an angle 'A' is 3 over 11,

i.e.,

$\cos A=\dfrac{3}{11}.$

And we need to find which one of the given four options is correct.

We have the following relations between cosine, secant and cosecant of an angle from trigonometry.

$\sec A=\dfrac{1}{\cos A}~~\textup{and}~~\csc A=\dfrac{1}{\sqrt{1-\cos^2 A}}.$

Therefore,

$\sec A=\dfrac{11}{3}$

and

$\csc A=\dfrac{1}{\sqrt{1-\frac{9}{121}}}=\dfrac{1}{\sqrt{\frac{112}{121}}}=\dfrac{11}{4\sqrt 7}.$

Thus, the correct option is (a) sec A = 11 over 3.

3 0

4 years ago

Find the area of 7cm 20cm 14cm 11cm

FinnZ [79.3K]

Multiply all 4 an the answer is gonna be the area

3 0

4 years ago

Help with word problem!

creativ13 [48]

2 1/6 divided by 7/10

13/6 / 7/10 =

13/6 * 10/7 =

130/42 =

3 4/42. or 3 2/21 hours... three and two twenty-firsts

7 0

3 years ago

A boy leaves on a bicycle trip at the rate of 8 mph. One hour later the father, realizing that his son forgot his camping

KatRina [158]

Answer:

40 mph

Step-by-step explanation:

One hour includes 60 minutes

8/60=0.13(3 repeating)

You only need 15 minutes of time

0.13(3 repeating)*15=2

8+2=10 miles

15 minutes is 1/4 of an hour

10*4=40 mph

6 0

3 years ago

Sonny's gymnastics class last one hour and 20 minutes the class starts at 3:50 p.m. at what time does the gymnastics class in

Ilya [14]

4:10 is the time that the class ends, I think that's what you meant?

7 0

3 years ago

Read 2 more answers