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3 years ago

Please help me find the answer

Mathematics

1 answer:

enyata [817]3 years ago

5 0

Answer:

the answer is c the if it's verticle rise of 5

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Anyone please HELP cause I’m getting frustrated

pashok25 [27]

Answer:

U =35.5

Step-by-step explanation:

Since this is a right angle, we can use trig functions

tan theta = opp/ adj

tan U = 5/7

Take the inverse of each side

tan ^-1 tan U = tan ^-1 (5/7)

U = 35.53767779

Round to the nearest tenth

U =35.5

4 0

4 years ago

Help on #26 please. State the domain and range

ladessa [460]

Wouldnt the domain be x with the equal cross thingy 3

4 0

3 years ago

Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

Pavlova-9 [17]

Answer:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean $\mu$ . And we can estimate this parameter with a confidence interval given by this formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

7 0

3 years ago

PLZZZZ HELLLLLPPPPP!!!!!!! 15 PTS!!!

Romashka-Z-Leto [24]

Answer:

2 3/4

Step-by-step explanation:

Her 3rd longest piece is 5 1/2 so half of 5 and 1/2 is 2 3/4

3 0

3 years ago

David is thinking about getting the new Iphone. He has to pay a fee up front and also a recuring monthly charge until the

TiliK225 [7]

Answer:

tell him tell him dphones are trash and slow

Step-by-step explanation:

5 0

3 years ago