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2 years ago

Answer these please!! :( a) 5 + (-4) b) -9 + 16 c) 10 + (-14)

Mathematics

1 answer:

slamgirl [31]2 years ago

6 0

Answer:

a. 1

b. 7

c. -4

Step-by-step explanation:

a. 5 + (-4)

= 5 - 4

= 1

b. -9 + 16

= 7

c. 10 + (-14)

= 10 - 14

= - 4

If you further explanation how it come then please tell.

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(a)

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*Use a z-table.

Thus, the probability that the sample average sediment density is between 2.70 and 3.00 is 0.477.

(b)

It is provided that:

$P(\bar X\leq 3.00)\geq 0.99$

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z ≥ 2.33

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