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ivann1987 [24]
2 years ago
13

Which is the standard form of the equation 8n + 4 = -2n + 9 ? *

Mathematics
1 answer:
stepladder [879]2 years ago
7 0
Solution is n= 1/2 and alternate n= 0.5, n= 2-1
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R-18=27 Solve this equation
Flauer [41]

Step-by-step explanation:

r - 18 = 27

r = 27 + 18

r = 45

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6 0
3 years ago
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What is 7=5x+8 in y=me+b form
tatiyna
I have no idea, do you mean y=mx+n cause if so it's already in that form instead that fact that the 7 is supposed to be a y
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3 years ago
What is the y-intercept in the equation y=8x+6
lisabon 2012 [21]

Answer:

(0,6) or 6

Step-by-step explanation:

To find the y-intercept look at the last variable you have, which in this case is 6. Glad to help :)

7 0
2 years ago
A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 450 gram setting. It
Arturiano [62]

Answer:

Test statistic = -2.25

P-value = 0.0199

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 450 gram

Sample mean, \bar{x} = 441 grams

Sample size, n = 16

Alpha, α = 0.05

Sample variance = 256

\sigma^2 = 256\\\sigma = \sqrt{256} = 16

First, we design the null and the alternate hypothesis

H_{0}: \mu = 450\text{ grams}\\H_A: \mu < 450\text{ grams}

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{441 - 450}{\frac{16}{\sqrt{16}} } = -2.25

Now,

Degree of freedom =

=n-1 = 16-1=15

We can calculate the p-value from the table as:

P-value = 0.0199

Conclusion:

Since the p-value is smaller than the significance level we fail to accept the null hypothesis and reject it.

Thus, there is enough evidence to support the claim that the machine is under filling the bags .            

5 0
3 years ago
I need help ASAP! I am offering brainiest to whoever answers the question first!!!
lara [203]
-3:1 :) have a nice day!
8 0
3 years ago
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