3 years ago

I need help on this

1 answer:

6 0

I'm pretty sure the answer is A

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nata0808 [166]

Z-score for 80% to pass = -0.842.
$-0.842=\frac{X-426}{72}$
-60.624 = X - 426
X = 426 - 60.624
X = 365
Therefore the required passing score is 365.

4 0

3 years ago

fomenos

(8^2)^-4 = 1/8^8

answer

C-1 over 8 times 8 times 8 times 8 times 8 times 8 times 8 times 8

5 0

3 years ago

Pachacha [2.7K]

Around 8,100/8,000..

6 0

3 years ago

andre [41]

Answer:

144 days

Step-by-step explanation:

160 · 0.9

5 0

3 years ago

Nady [450]

Answer:

290.6 backpacks per year

Step-by-step explanation:

The average of 5 numbers is 1/5 of their sum:

average = (278 +310 +320 +242 +303)/5 = 290.6

The average number of backpacks given out in the last 5 years is 290.6, about 291.

3 0

3 years ago