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Mathematics homework help

Jul 6, 2020 | Mathematics

Jul 6, 2020 | Mathematics

Mathematics homework help

1. Use a calculator to find the value of the expression below rounded to two decimal places. /var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q46_stem.png

A. 44.42

B. 45.58

C. 0.80

D. 0.78

2. The point P (x,y) on the unit circle that corresponds to a real number t is given. Find the value of the indicated trigonometric function at t.

Find sin t.

/var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q9_stem.png

A. /var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q9_3-sqrt7-over-7.png

B. /var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q9_3-over-4.png

C. /var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q9_sqrt7-over-4.png

D. /var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q9_sqrt7-over-3.png

3. Use a calculator to find the value of the expression below rounded to two decimal places.

sin–(0.7)

A. 0.80

B. 0.78

C. 44.43

D. 45.57

4. Use even and odd properties of the trigonometric functions to find the exact value of the expression:

/var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q12_stem.png

A. /var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q12_minus-sqrt3-over-2.png

B. /var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q12_1-over-2.png

C. /var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q12_sqrt3-over-2.png

D. /var/folders/9s/5k_n9ntx3sg2tkk2k98jfw200000gn/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/350663RR_Q12_minus-1-over-2.png

5. From a boat on a lake, the angle of elevation to the top of a cliff is 25°35′. If the base of the cliff is 1,325 feet from the boat, how high is the cliff (to the nearest foot)?

A. 634 feet

B. 644 feet

C. 647 feet

D. 637 feet

6. Find the exact value of the expression below. Do not use a calculator.

1 + sin280° + sin210°

A. –1

B. 2

C. 1

D. 0

7. Find the reference angle for the given angle below.

102°

A. 78°

B. 12°

C. 88°

D. 22°

8. Find the exact value of the expression below.

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