3 years ago

If Efx =1050 and mean x =15 find the value of N

Mathematics

1 answer:

harina [27]3 years ago

6 0

Answer:

your answer is 70.

Step-by-step explanation:

mean=Efx/n=1050/15=70

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Ber [7]

Answer:

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Step-by-step explanation:

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8 0

3 years ago

Read 2 more answers

If p% of q is k, then what is q% of p.

vfiekz [6]

The following equation expresses p% of q is k.
$\frac{p}{q}\times100=k$
Then we can write q% of p as:
$\frac{q}{p}\times100=\frac{1}{k}$
So the answer is 1/k

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4 years ago

F(x)= -2x^2 - 5 and f(2)= -13<br><br> can someone solve this in steps please?

Rashid [163]

This is one way you could write out the steps

f(x) = -2x^2 - 5

f(2) = -2(2)^2 - 5

f(2) = -2(4) - 5

f(2) = -8 - 5

f(2) = -13

4 0

3 years ago