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yanalaym [24]
3 years ago
15

5 The diagram shows a circle drawn inside a square.

Mathematics
1 answer:
irakobra [83]3 years ago
8 0

Answer:

where is the diagram please put it

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Rewrite 7/6 divided by 1/3
Arte-miy333 [17]

Answer:

7/6 * 3/1 =21/6 you just flip the fraction when doing division.

Step-by-step explanation:

5 0
3 years ago
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The attention span of children (ages 3 to 5) is claimed to be Normally distributed with a mean of 15 minutes and a standard devi
Agata [3.3K]

Answer:

If the observed sample mean is greater than 17.07 minutes, then we would reject the null hypothesis.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 15 minutes

Sample size, n = 10

Alpha, α = 0.05

Population standard deviation, σ = 4 minutes

First, we design the null and the alternate hypothesis

H_{0}: \mu = 15\text{ minutes}\\H_A: \mu > 15\text{ minutes}

Since the population standard deviation is given, we use one-tailed z test to perform this hypothesis.

Formula:

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

Now, z_{critical} \text{ at 0.05 level of significance for one tail} = 1.64

Thus, we would reject the null hypothesis if the z-statistic is greater than this critical value.

Thus, we can write:

z_{stat} = \displaystyle\frac{\bar{x} - 15}{\frac{4}{\sqrt{10}} } > 1.64\\\\\bar{x} - 15>1.64\times \frac{4}{\sqrt{10}}\\\bar{x} - 15>2.07\\\bar{x} > 15+2.07\\\bar{x} > 17.07

Thus, the decision rule would be if the observed sample mean is greater than 17.07 minutes, then we would reject the null hypothesis.

6 0
4 years ago
Josiah invests $360 into an account that accrues 3% interest annually. Assuming no deposits or withdrawals are made, which equat
Shalnov [3]
The accumulated value,y

Y=360*(1+0.03)^x

6 0
3 years ago
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If f(x)=3x+5 and g(x)=-2x^2-5x+3, find (f+g) (x)
ANTONII [103]

f(x)=3x+5,\ g(x)=-2x^2-5x+3\\\\(f+g)(x)=f(x)+g(x)=(3x+5)+(-2x^2-5x+3)\\\\=3x+5-2x^2-5x+3=-2x^2+(3x-5x)+(5+3)=-2x^2-2x+8\to\boxed{C.}

7 0
3 years ago
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Solve using systems elimination ​
Alexxx [7]

Answer:

well if you add both equations it will all eliminate to 0 = -1

what is inconsistant cause there is no solution cause the statment 0 is equal to -1 is false

Step-by-step explanation:

2x + -2x = 0

-y + y = 0

-4 + 3 = -1

7 0
3 years ago
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