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masya89 [10]
3 years ago
15

What is the value of -16 +9?

Mathematics
1 answer:
ki77a [65]3 years ago
6 0

Answer

the answer is -7

Step-by-step explanation: −(16−9) =-7

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How is a simontaneous equation solve or the procedures to solve it
Marina CMI [18]

Answer:

on my knowledge i can tell you the methods used to solve it which are;

Step-by-step explanation:

<h3>Elimination method.</h3><h3>Substitution method.</h3><h3>Graphical method.</h3>
3 0
2 years ago
. Compute the required sample size given the required confidence in the sample results is 99.74% (Z score of 3). The level of al
Shtirlitz [24]

Answer:

900 sample size

Step-by-step explanation:

To determine the sample size for a proportion, the margin of error formula is used to determine this:

E=Z_{\frac{\alpha}{2} }*\sqrt{\frac{\hat p \hat q}{{n} }

n=\hat p \hat q*(\frac{Z_{\frac{\alpha}{2} }}{E} )^2

Where p is the proportion, E is the margin of error, n is the sample size, q = 1 - p, Z_\frac{\alpha }{2} is the z score.

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n=0.5*0.5*(\frac{3}{0.05} )^2\\\\n = 900

6 0
3 years ago
2/5× = ?<br><br><br>I don't understand how to answer this​
elixir [45]

Answer:

10

Step-by-step explanation:

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5 0
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PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
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Step-by-step explanation:

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On a basketball team, the following players made most of the 56 points made during the last basketball game.
Ivanshal [37]

Answer:

7.75

Step-by-step explanation:

56-27-21-0.25=7.75

4 0
3 years ago
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