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Ket [755]
3 years ago
8

What is 3b to the second power minutes b, of b=5?

Mathematics
1 answer:
Sav [38]3 years ago
3 0
(3b)^{2} - b
where
b = 5
is 220.
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Do you have paper and a pen on you this is very simple to workout The first one is 4 and the other one is 3587.5 and the last one is <span>8.0992869</span>
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Jill wants to make 15 no of a 40% acid solution by mixing together a 30% acid solution and a 60% acid solution. How much of each
german
X+y=15
0.3x+0.6y=0.4*15=6
solve the system of equation.
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7 0
3 years ago
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A 90 percent confidence interval for the slope of a regression line is determined to be (-0.181, 1.529). Which of the following
GenaCL600 [577]

Answer: a. The correlation coefficient of the data is positive.

Step-by-step explanation:

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Estimated slope of sample regression line  = \dfrac{-0.181+1.529}{2}

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⇒Correlation coefficient(r) must be positive, So a. is true.

But, d. and e. are wrong(0.674 ≠ 0 or 1.348).

We cannot check residuals or its sum from confidence interval of slope of a regression line, so b is wrong.

We cannot say that scatterplot is linear as we cannot determine it from interval, so c. is wrong

So, the correct option : a. The correlation coefficient of the data is positive.

7 0
2 years ago
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4 0
3 years ago
Dont be wrong got 2 more
valina [46]
Use the given formula
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Solution: 25.12 inches
8 0
2 years ago
Read 2 more answers
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