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3 years ago

7) Shannon is selling some embroidered jackets on a Web site. She wants 10 points

Mathematics

1 answer:

ahrayia [7]3 years ago

4 0

Answer: A

Step-by-step explanation:

Nothing you a bum

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kolbaska11 [484]

Answer: Slope: 3

x-intercept(s): $(-\frac{1}{3} , 0)$

y-intercept(s): $(0,1)$

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2 years ago

Write the point slope equation of the line through (7,-2) with slope of 1/2.

ahrayia [7]

Answer:

y = 0.5x - 5.5

Step-by-step explanation:

slope = 0.5, so this is the x coefficient.

y intercept = -2 - (7 x 0.5) = -5.5

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3 years ago

Miguel is driving his motorboat across a river. The speed of the boat in still water is 13 mi/h. The river flows directly south

inessss [21]

Answer: B

Step-by-step explanation:

13.9 mi/h; 21 south of west

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3 years ago

To save money, a local charity organization wants to target its mailing requests for donations to individuals who are most suppo

mars1129 [50]

Answer:

The 80% confidence interval for difference between two means is (0.85, 1.55).

Step-by-step explanation:

The (1 - α) % confidence interval for difference between two means is:

$CI=(\bar x_{1}-\bar x_{2})\pm t_{\alpha/2,(n_{1}+n_{2}-2)}\times SE_{\bar x_{1}-\bar x_{2}}$

Given:

$\bar x_{1}=M_{1}=6.1\\\bar x_{2}=M_{2}=4.9\\SE_{\bar x_{1}-\bar x_{2}}=0.25$

Confidence level = 80%

$t_{\alpha/2, (n_{1}+n_{2}-2)}=t_{0.20/2, (5+5-2)}=t_{0.10,8}=1.397$

*Use a t-table for the critical value.

Compute the 80% confidence interval for difference between two means as follows:

$CI=(6.1-4.9)\pm 1.397\times 0.25\\=1.2\pm 0.34925\\=(0.85075, 1.54925)\\\approx(0.85, 1.55)$

Thus, the 80% confidence interval for difference between two means is (0.85, 1.55).

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3 years ago

Holt mcdougal chapter 7 online answer key

lozanna [386]

Answer:

saan po yung pic hindi kopo maindihan

6 0

3 years ago