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nasty-shy [4]
3 years ago
6

ANSWER PLEASE PLEASE Don’t MIND MY PENCIL WORK

Mathematics
1 answer:
morpeh [17]3 years ago
3 0
You need to make two equations-
Use b for butternut squash and z for zucchini.
2b+4z = $6.96
3b=6z
Solve for one of the variables in the second equation ( I will solve for b)
3b/3=6z/3
b=2z 
Plug it in-
2(2z)+4z =$6.96
4z+4z=$6.96
8z =$6.96
8z/8 = 6.96/8
z= .87
Plug in again - (b=2z)
b= (2)(.87)
b= $1. 74
So the zucchini is 87 cents and the butternut squash is  $1.74 (each)
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For the sample standard deviation(s) for situations involving means, explain whether it affects the width of a confidence interv
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Answer:

Affects the width of a confidence interval, as the margin of error is a function of the sample standard deviation.

Step-by-step explanation:

When we have the standard deviation for the sample, the t-distribution is used to solve the question.

It does not affect the center of the interval, which is a function only of the sample mean.

Width of a confidence interval:

The width of a confidence interval is a function of the margin of error, which is:

M = t\frac{s}{\sqrt{n}}

In which s is related to the sample standard deviation. Thus, since s and M are directly proportional, a higher standard deviation makes the interval wider, lower standard deviation makes the interval narrower, and thus, the sample standard deviation affects the the width of a confidence interval.

6 0
3 years ago
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soldi70 [24.7K]

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3 0
3 years ago
\left(6x10^2\right)\div \left(3x10^{-5}\right)
Trava [24]

Answer:

\frac{6\times 10^2}{3\times 10^{-5}} = 2 x 10⁷

Step-by-step explanation:

Given expression is \frac{6\times 10^2}{3\times 10^{-5}}

The given expression is simplified as follows;

\frac{6\times 10^2}{3\times 10^{-5}} = (\frac{6}{3} )\times 10^{2-(-5)}\\\\(\frac{6}{3} )\times 10^{2-(-5)}  = (\frac{6}{3} )\times 10^{2+5}\\\\(\frac{6}{3} )\times 10^{2+5} = 2 \ \times \ 10^7

Therefore, the result of the given expression is 2 x 10⁷

6 0
3 years ago
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ki77a [65]

Answer:

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Step-by-step explanation:

8 0
3 years ago
What is the slope of P=(4.5,-1) Q=(5.3,2).
Ulleksa [173]
\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%   (a,b)
P&({{ 4.5}}\quad ,&{{ -1}})\quad 
%   (c,d)
Q&({{ 5.3}}\quad ,&{{ 2}})
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{2-(-1)}{5.3-4.5}\implies \cfrac{2+1}{5.3-4.5}
\\\\\\
\cfrac{3}{0.8}\implies \cfrac{\frac{3}{1}}{\frac{08}{10}}\implies \cfrac{\frac{3}{1}}{\frac{4}{5}}\implies \cfrac{3}{1}\cdot \cfrac{5}{4}\implies \cfrac{15}{4}\implies 3\frac{3}{4}
6 0
4 years ago
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