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vodomira [7]
2 years ago
12

When there is a coefficient with a fraction, you should...

Mathematics
2 answers:
Katarina [22]2 years ago
3 0

Answer:

divide each term in the equation by the coefficient or multiply each term by the reciprocal of the coefficient

Step-by-step explanation:

defon2 years ago
3 0

Answer:

hi

Step-by-step explanation:

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0.105<br> B. 0.501<br> C. 0.015<br> D. <br> Which of the following is the least?
hodyreva [135]
The least is 0.015. To figure this out, see how many digits are closest to zero to the right of the decimal. 
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3 years ago
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(21.23) A study of the effect of exposure to color (red or blue) on the ability to solve puzzles used 42 subjects. Half the subj
Cloud [144]

Answer:

There is enough statistical evidence to say that the means are different.

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>"The two-sample t statistic for comparing the population means has value (±0.001)."</em>

<em />

The null and alternative hypothesis are:

H_0: \mu_r-\mu_b=0\\\\H_1: \mu_r-\mu_b\neq0

The level of significance is assumed to be α=0.01.

The difference of the sample means is:

M_d=M_r-M_b=9.64-15.84=-6.20

The standard deviation for the difference of the means is:

s_d=\sqrt\frac{s_r^2+s_b^2}{n} } =\sqrt\frac{3.43^2+8.65^2}{21} }=\sqrt{\frac{85.59}{21} }=\sqrt{4.12} =2.03

Then, the t-statistic is:

t=\frac{M_d-(\mu_r-\mu_b)}{s_d} =\frac{-6.20-0}{2.03}= -3.05

The degrees of freedom are:

df=n_r+n_b-2=21+21-2=40

With 40 degrees of freedom the t-critial for a significance of α=0.01 is t=±2.705.

As the t-statistic lies in the rejection region, the effect is significant and the null hypothesis is rejected.

There is enough statistical evidence to say that the means are different.

7 0
3 years ago
Which is proportional to 3/4?
Serjik [45]
6/8 because 3/4*2=6/8
hope this helps

6 0
3 years ago
How many minutes does the white vacuum need to clean 86.25 square feet?
Dovator [93]

Answer:

1.5 hours

As a general rule, 1,000 square feet of the house should take 1.5 hours to clean, according to Cleaning 4 Profit. So a 3,000 square feet home should take 3 hours to clean, and so on.

6 0
2 years ago
Please solve this problem. I can't solve it! And can someone explain how to do it please??
s2008m [1.1K]

Answer:

1.23

Step-by-step explanation:

They already give u the amount of oz in a gram, so you would want to multiply 0.035 by 37.

6 0
3 years ago
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