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Lorico [155]
3 years ago
11

1.) Ivan made a scale drawing of his cell phone using the scale factor 1 mm = 2 in. How long is the drawing of his phone if the

actual phones is 8 inches? Arecine for rice pudding calls for un​
Mathematics
1 answer:
FinnZ [79.3K]3 years ago
5 0

What school do you go to.

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<img src="https://tex.z-dn.net/?f=%5Csf%2010%2B2x%3D4" id="TexFormula1" title="\sf 10+2x=4" alt="\sf 10+2x=4" align="absmiddle"
Pachacha [2.7K]
10 + 2x = 4
-10
2x = -6
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x = -3

Answer: x = -3
4 0
1 year ago
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Preliminary data analyses indicate that it is reasonable to use a t-test to carry out the specified hypothesis test. Perform the
Readme [11.4K]
<h2>Answer with explanation:</h2>

By considering the given information, we have

Null hypothesis : H_0: \mu=35.0

Alternative hypothesis : H_1: \mu\neq35.0

Since the alternative hypothesis is two-tailed , so the test is a two-tailed test.

Given : Sample size : n= 20, since sample size is less than 30 so the test applied is a t-test.

\overline{x}=41.0    ;    \sigma= 3.7

Test statistic : t=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

i.e. t=\dfrac{41.0-35.0}{\dfrac{3.7}{\sqrt{20}}}=7.252112359\approx7.25

Degree of freedom : n-1 = 20-1=19

Significance level = 0.01

For two tailed,  Significance level =\dfrac{0.01}{2}=0.005

By using the t-distribution table, the critical value of t =t_{19, 0.005}=2.861

Since , the observed t-value (7.25) is greater than the critical value (2.861) .

So we reject the null hypothesis, it means we have enough evidence to support the alternative hypothesis.

We conclude that there is some significance difference between the mean score for sober women and 35.0.

3 0
3 years ago
HELPP PLEASE <br><br> let f(x)=2x^2+3x+1 and g(x)=x^2 +8. Find g(f(x)). Show each step
Vinvika [58]

Answer:

When applicable, state the domain restriction. g(f(x)) 4 x2 + 1 16 x2 + 3 4 x2 + 7 16 x2 - 8 x + 3 Please help. I thinks that it is 16 x2 + 3. College Algebra. Consider the function f(x)=4 - x^2 for the domain [ 0,∞). Find f^−1 (x), where f^−1 is the inverse of f

Step-by-step explanation:

6 0
3 years ago
Anyone wann4 start a convo rn?
Marina86 [1]

sure why not i have nothing better to do

4 0
2 years ago
Jae's homework consists of 16 math problems. She has finished 4 problems so far.
VMariaS [17]
Jae has finished 25% of her homework.

<span><span>4/16
</span></span><span><span>=<span>1/4
</span></span></span><span><span>=1÷4
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3 0
3 years ago
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