3 years ago

Factoring trinomials 5r^2-8r+40

Mathematics

1 answer:

Dimas [21]3 years ago

5 0

The answer is your welcome

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An article in IEEE International Symposium on Electromagnetic Compatibility (Vol. 2, 2002, pp. 667-670) describes the quantifica

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Answer:

The answer is " $(-33.9218,-16.0782)\\\\$ ".

Step-by-step explanation:

Calculating the critical value:

Freedom Degree= 7.

The significance level, $\alpha= 0.05$

Using excel function the critical value:

$\to t_{\frac{\alpha}{2} (df)}=t_{\frac{0.05}{2},7}\\\\=T.INV.2T(0.05,7)\\\\=\pm 2.3646\\\\$

When $95\%$ of the confidence intervals for the difference of means:

$\to (\bar{x_1}-\bar{x_2}) \pm t_{\frac{\alpha}{2}}\sqrt{\frac{S_1^2}{n_1}+\frac{S_2^2}{n_2}}\\\\=(90-115) \pm 2.3646 \sqrt{\frac{5^2}{8}+\frac{102^2}{9}}\\\\=-25 \pm 2.3646 (3.773077)\\\\=(-33.9218,-16.0782)\\\\$

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3 years ago

Pentagon ABCDE is graphed with the following vertices A(4,6), B(9,6), C(7,1), D(4,0), and E(1,3). What would point C' be after a

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Answer:

(-7,1)

Step-by-step explanation:

over the y axis means the opposite way to the right or the left . the 7 will become -7 because on the other side the x-axis is made of negative numbers.

remember this to graph a number , it is like going in an elevator you have yo get in then go up or down.

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fgiga [73]

A(n)=330 Plug in 10 for n

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If angle ABC is congruent to angle DEF, what substitution property would this equation be??? Angle DEF=180 degrees - angle ABC A

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