Urgent math will mark giving 25
correct answers !

question 1
a cooking show currently has about 223,000 regular viewers. the number of regular viewers has been decreasing at a rate of 4.7% per year.

which is the best prediction for the number of regular viewers the show will have in 6 years?

question 1 options:

35,420

37,167

104,810

167,056

question 2 (3 points)
a population of 30,000 fish is expected to shrink at a rate of 7.5% per year.

which is the best prediction for the fish population in 8 years?

question 2 options:

2813

3469

16,079

27,750

question 3 (3 points)
bromine-82 has a half-life of about 35 hours.

after 140 hours, how many milliliters of an 80 ml sample will remain?

question 3 options:

65 ml

20 ml

10 ml

5 ml

question 4 (3 points)

polonium-218 has a half-life of about 3 minutes.

after 15 minutes, how many milligrams of a 120 mg sample will remain?

question 4 options:

1.875 mg

3.75 mg

4.8 mg

7.5 mg

question 8 (3 points)
pippa is holding the end of her kite string 1.4 m above the ground. the kite string rises at a 63° angle of elevation. pippa has let out all 75 m of string.

to the nearest tenth of a meter, how high above the ground is the kite?

question 8 options:

34.0 m

35.4 m

66.8 m

68.2 m

question 9 (3 points)
using his telescope, tommy watches a bald eagle as it sits on the top of a cliff. the telescope is positioned so that the line of sight to the eagle forms a 38° angle of elevation. the telescope sits 1.3 m above the ground and the base of the telescope is 116 m from the base of the cliff.

to the nearest tenth of a meter, how high above the ground is the eagle?

question 9 options:

90.6 m

91.9 m

148.5 m

149.8 m

question 10 (3 points)
a photographer's camera sits on a tripod that is 1.8 m above the ground. the base of the tripod is 44 m from the base of a tree. the photographer spots a woodpecker in the tree at a 39° angle of elevation.

to the nearest tenth of a meter, how high above the ground is the woodpecker?

question 10 options:

37.4 m

36.0 m

35.6 m

34.2 m