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prohojiy [21]
3 years ago
6

PLEASE HELP PLEASE HELP PLEASEEEE

Mathematics
2 answers:
icang [17]3 years ago
7 0
27 is c And 28 is d.
Delvig [45]3 years ago
5 0

Answer:

27. C

28. D

Step-by-step explanation:

The average of all grades in his fencing class, including the upcoming one, (all grades summed up divided by the amount of grades) must be equal to 86 (percent), hence C is the right answer for 27.

Solving this equation gives:

\frac{75+88+62+100+x}{5} = 86\\325 + x = 86 \cdot 5\\x = 430 - 325 = 105

So D is the right answer for 28.

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What is the geometric mean between 9/16 and 25/36
sergiy2304 [10]

Answer:

5/8

Step-by-step explanation:

Geometric mean is found by multiplying the n number of values and then taking the n-root.

To do this with these numbers, sqrt((9/16)*(25/36)) = (3/4)(5/6) = (1/4)(5/2)= 5/8

I hope this helps! :)

6 0
2 years ago
Easton is deciding between two different movie streaming sites to subscribe to. Plan
muminat

Answer:

how do we graph on here

Step-by-step explanation:

5 0
2 years ago
Is 9/11 rounded to 0,1/2 or 1
uranmaximum [27]
9/11 is rounded to 1. It rounds up because 9 is higher than 5, which is the middle of 11.
4 0
3 years ago
Read 2 more answers
Use the graph to write a linear function that relates y to x.
Elenna [48]

Answer:

y=3

Step-by-step explanation:

6 0
2 years ago
The mass of a proton is approximately 1.67 x 10−24, and the mass of an electron is approximately 9.11 x 10−28. Find the approxim
svetoff [14.1K]
1.67x[10^(-20)] 1.67x[10^(-24+28)]
--------------------- = -------------------------- =
9.11x[10^(-28)] 9.11

.183315(10^4)=1833.15

The proton mass is about 1833 times an electron mass

Hope this helps!
5 0
3 years ago
Read 2 more answers
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