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Jet001 [13]
2 years ago
10

2. Find the sum of the digits of each multiple of 9 below.

Mathematics
1 answer:
FrozenT [24]2 years ago
4 0

Answer:

Step-by-step explanation:

Take the sum of each answer and add the two digits together.
9.2=18   1+8=9

9.3=27   2+7=9

9.4=36.  3+6=9

The sum of the digits added together will always equal 9

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If it’s out of 180 degrees it’s 30 degrees
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What is an equation of the line that passes through the points (8, 2)(8,2) and (-4, 5)(−4,5)?
SOVA2 [1]

Answer:

y = -1/4x + 4

Step-by-step explanation:

(8,2) and (-4, 5)

Slope = (5 - 2)/(-4 - 8)

= 3/-12 = -1/4

Point (8,2)

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

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5 0
3 years ago
9 x 10 to the power of 2 how many times as much as 3 x 10 to the -2 power
hjlf

Answer:

  3×10^4

Step-by-step explanation:

The desired factor is found by calculating the ratio of the two numbers:

  k = (9×10^2)/(3×10^-2) = (9/3)×10^(2 -(-2)) = 3×10^4

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6 0
2 years ago
Please answer the following attachment down below.<br><br> I would greatly appreciate it if you did.
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Answer:

34.63

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A=a2+2aa2

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4 0
3 years ago
Lucy is using a one-sample t ‑test based on a simple random sample of size n = 22 to test the null hypothesis H 0 : μ = 16.000 c
slega [8]

Answer:

The value of test statistic is 1.338

Step-by-step explanation:

We are given the following in the question:  

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Sample mean, \bar{x} = 16.218

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Alpha, α = 0.05

Sample standard deviation, s = 0.764

First, we design the null and the alternate hypothesis

H_{0}: \mu = 16.000\text{ cm}\\H_A: \mu < 16.000\text{ cm}

We use one-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{16.218 - 16.000}{\frac{0.764}{\sqrt{22}} } = 1.338

Thus, the value of test statistic is 1.338

4 0
3 years ago
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