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vovangra [49]
4 years ago
15

You've randomly surveyed some students in your science class to find the number of hours per week they study. what is the mean,

based on your sample?
a.4.75 hours
b.5.05 hours
c.5.25 hours
d.5.45 hours
Mathematics
1 answer:
seropon [69]4 years ago
8 0
D. 5.45 hrs based on your sample
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Jonas builds a snow fort. He tells his friends it is 0.8 meters tall inside, but he rounded the height to the nearest tenth. Whi
Lelu [443]

Answer:

0.77

Step-by-step explanation:

If you had to round to the nearest tenth, 0.89 would round to 0.9. 0.74 would round down to 0.7. 0.85 would also round up to 0.9, which leaves the last answer, 9.77 to be rounded to 0.8. Hope this helps

5 0
3 years ago
What is the coefficient of the variable in the expression 4 − 3x − 7 + 6?
liberstina [14]
-3.

Coefficients are numbers that have a variable next to it, thus leading it to be -e of the -3x.

Hope this helps!
3 0
4 years ago
Read 2 more answers
240 as a percentage
Sladkaya [172]

Answer:

240%

Step-by-step explanation:

240 / 100 Answer: 240%

4 0
3 years ago
Read 2 more answers
What is 50,000 times 10 to the 15th
Misha Larkins [42]
Remember property of exponents
(x^m)(x^n)=x^{m+n}
add exponents of same base

ok so

50,000 is 5 times 10^4

so

50000 times 10^15=
5 times 10^4 times 10^15=
5 times 10^{4+15}=
5 times 10^19
8 0
3 years ago
A surveyor standing on top of a cliff found that the angle of depression of a boat as sea is 22°. if the top of the cliff is 15m
Alex73 [517]

Answer:

From the photo above i interpreted the question and drew a triangle to make it easier to solve

Tan is used to solve the question as we were given opposite (as height of the cliff) and to find Adjacent ( the distance between the foot of the cliff to the boat)

Tan θ =Opp/Adj

Tan 22°=15/a

Cross Multiply

aTanθ=15°

Divide both sides by Tan 22

aTan22/Tan22 = 15/Tan 22

a = 15/Tan 22°

a = 37.13 m

Therefore the distance between the foot of the cliff to the boat is 37.13 metres

5 0
3 years ago
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