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Jlenok [28]
2 years ago
9

Simplify −45(30x−40)+(42x+4) . Write your answer in factored form.

Mathematics
1 answer:
kakasveta [241]2 years ago
5 0

solution

-4(327x-451)

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Six more than a number can be written as which variable expression
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N+6 would be my guess.
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john and jack found a coin on the sidewalk. they argued about whether the coin is fair. john claimed a 40% chance for the coin t
expeople1 [14]

Since it is observed that I z I = 3.464 > 1.96 it is concluded that the null hypothesis is rejected.

Therefore we reject John's claim.

Here:

we can use 1 sample proportion test to check the claim of John

H₀ : p₀ = 0.4

H₁ : p₀ ≠ 0.4

Test statistic is

z = p - p₀/√p₀(1-p₀)n

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since it is observed that I z I = 3.464 > 1.96 it is concluded that the null hypothesis is rejected.

Therefore we reject John's claim.

Learn more about Null hypothesis here:

brainly.com/question/15980493

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6 0
1 year ago
PLEASE HELP ME!
DIA [1.3K]
<span>Which ordered pair is the best estimate for the solution to the system?
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find the scale, k, of H(3,4) if H'(9,12) after going through the transformation (x,y) ---&gt; (kx,ky) centered at the origin
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The value of scale k is 3

Step-by-step explanation:

In order to find the scale , we can either divide the coordinates of H' by the original point or compare both the points to find the original ordered pair.

Given

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The coordinates of H are multiplied with some integer k to form H'

So,

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<u>For y-coordinate:</u>

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Hence,

The value of scale k is 3

Keywords: Coordinate geometry, scaling

Learn more about scaling at:

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#LearnwithBrainly

5 0
3 years ago
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