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3 years ago

Find cos 0, where 0 is the angle shown. Give an exact value, not a decimal approximation.

Mathematics

1 answer:

marin [14]3 years ago

5 0

Answer:

cosθ = $\frac{5}{13}$

Step-by-step explanation:

This is a 5- 12- 13 right triangle then

cosθ = $\frac{adjacent}{hypotenuse}$ = $\frac{5}{13}$

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at 10.5mph how long would it take to go 6776 miles and why? My lecture did't really touch over on this subject.

alexandr402 [8]

Speed = 10.5miles/ h
time= 6776miles / 10.5miles/h
= 645 hours
to find time from speed and distance,
use distance/speed

5 0

3 years ago

A technology manufacturer is a supplier of fiber optic cables. They are interested in expanding their business and offering fibe

pochemuha

Answer:

Alternate hypothesis

Step-by-step explanation:

We are given the following in the question:

Proportion of internet providing fiber optic internet in the United States

p = 11.3% = 0.113

Claim:

It is claimed by the technology manufacturer that this proportion is different from 45%

First, we design the null and the alternate hypothesis

$H_{0}: p = 0.45\\H_A: p \neq 0.45$

Alternate hypothesis:

The claim is expressed by the alternate hypothesis that the the percentage of fiber optic internet offered in the United States is different from 45%.

4 0

3 years ago

PLEASE HELP ME WITH THIS!! I WILL GIVE EXTRA POINTS,AND BRAINLIST IF YOU ANSWER THIS CORRECTY!!

Klio2033 [76]

Answer:

Her average score was 84, add them all up and divide by 5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Express your answer in scientific notation. 4.1 x 10^-2 - 2.6 x 10^-3

bekas [8.4K]

$(4.1 \times {10}^{ - 2}) - (2.6 \times {10}^{ - 3}) = \\$

$(4.1 \times {10}^{ - 2}) - (0.26 \times {10}^{ - 2}) = \\$

$Factoring \: \: {10}^{ - 2}$

$(4.1 - 0.26) \times {10}^{ - 2} =$

$3.84 \times {10}^{ - 2}$

_________________________________

And we're done.

Thanks for watching buddy good luck.

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4 0

3 years ago

Can someone plsss help me with the 2 one

stepan [7]

Answer: $\sqrt{73}$ for number 7

Step-by-step explanation:

a²+b²=c²

3²+8²=c²

9+64=c²

$\sqrt{73}=\sqrt{c^2}\\\sqrt{73}=c$

8 0

3 years ago