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worty [1.4K]
3 years ago
11

Graph y=5/3x -9 ......

Mathematics
2 answers:
tankabanditka [31]3 years ago
5 0
Y=mx+b
m=slope
b=y intercept

ok, graph the y intercept first
at y=-9
so at y=-9 on the y axis, put a point
basically graph (0,-9)

then, use the slope
slope=rise/run=5/3
from (0,-9), go up 5 units and to the right 3 units and put a point there
you will have put a point at (3,-4)

connect the 2 points ((0,-9) and (3,-4)) and now you have graphed it
alisha [4.7K]3 years ago
4 0
Put a point at -9 because that is the y-intercept.then from the point -9 count up 5 and count over 3.
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Answer:

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vova2212 [387]

Answer:

The correct answer is

t = \frac{0.49-0.29}{\sqrt{\frac{(0.42)^2}{100} +}\frac{(0.29)^2}{100}  }

Step-by-step explanation:

To solve the question we note that the question involves a test statistic calculation given by

t = \frac{x_1-x_2}{\sqrt{\frac{s_1^2}{n_1} +}\frac{s_2^2}{n_2}  } Where

x₁ = Mean of sample 1

x₂ = Mean of sample 2

n₁ = Sample size of sample 1

n₂ = Sample size of sample 2

s₁ = Variance of sample 1

s₂ = Variance of sample 2

s₁ = ∑(x₁ - x₁')²/n₁,  s₂ = ∑(x₂ - x₂')²/n₂

The test statistic is a variable that is derived from a given data sample and is applied in hypothesis testing. The test statistic measures the available data against the expected value from the null hypothesis

With the given data, we have

t = \frac{0.49-0.29}{\sqrt{\frac{(0.42)^2}{100} +}\frac{(0.29)^2}{100}  }

4 0
3 years ago
The area of a compact disc is 78.53 square centimeters. What is the radius of the disc? Use pi = 3.14
Tom [10]

Answer:

r = 5 cm

Step-by-step explanation:

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divide by 3.14

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VLD [36.1K]

Answer:

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6 0
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Answer:

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Step-by-step explanation:

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:)

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3 years ago
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