The equation sin (40)= b/20 can be used to determine the length of line segment AC. What is the length of AC? Round to the nearest tenth.

Answers

Answer 1

Answer: Provided that the triangle looks like this:

A| \ | \ | \ | \ | \ b| \ 20 | \ | \ | \ | \ |_______40\C a B

Then using the the equation to solve for line segment AC (or b on the diagram):

sin(40) = b/20

b = 20 * sin 40
b = segment AC = 12.9 units

Answer 2

Answer: 12.9 just took it on the quiz

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*15 points* any help would be appreciated

Answers

Answer:

Step-by-step explanation:

this is what i think it might not be right but i tried my best ;3

can i please have brainly

Answer:

1, 4, 6 those are correct

Step-by-step explanation:

a store advertises that customers can take 25%off the original price and then take an extra 10%off is this 35% of? explain

Answers

The price will be 32.5 after calculating if a store advertises that customers can take 25%off the original price.

What is the percentage?

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

It is given that:

A store advertises that customers can take 25%off the original price and then take an extra 10%off is this 35% off.

No, it's not 35%. Its 32.5 %

If it costs 100$

25% × 100$ = 25$

So the price after 25% off is 100$ - 25$ = 75

10% × 75$ = 7.5 $

75$ - 7.5$ = 67.5$

100 - 67.5 = 32.5

Thus, the price will be 32.5 after calculating if a store advertises that customers can take 25%off the original price.

Learn more about the percentage here:

brainly.com/question/8011401

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No its not 35%. Its 32.5 %
If it costs 100$
25% × 100$ = 25$
So price after 25% off is 100$ - 25$ = 75
10% × 75$ = 7.5 $
75$ - 7.5$ = 67.5$
100 - 67.5 = 32.5

you and your mom enter a drawing with 3 different prizes. a total of 10 people entered the drawing, and prizes are awarded randomly. there are 720 ways to award the prizes

Answers

Answer:

The correct option is A.

Step-by-step explanation:

Number of people who entered the drawing = 10

Number of prizes = 3

Number of ways to award the prize = 720 ways

The total number of ways that 3 prizes can be awarded to the 10 people can be determined as:

10*9*8 = 720

The total number of ways in which I win the first prize and my mom wins the second prize would be 1*1*8 = 8

Thus the probability that i win the first prize and my mom wins the second prize would be 8/720 ....

Levi runs cross country. He runs 5 miles in 45 minutes. He runs 20 miles in 180 minutes. If he keeps the same pace, how long will it take him to run 12 miles?

Answers

Answer:

It will take 108 minutes to Levi to run 12 miles

Step-by-step explanation:

Formulas

(1) $velocity=(distance)/(time)$ and (2) $time=(distance)/(velocity)$

Using (1) we can conclude that $velocity=(5miles)/(45minutes)=(1)/(9)mil/min$ in the first case, and for the second $velocity=(20miles)/(180minutes)=(1)/(9)mil/min$ , is the same.

Finally using (2) $time=(12 mil)/((1)/(9)mil/min)=108min$ , is the time that will take to Levi to run 12 miles.

Henry can build 2 birdhouses in 30 minutes. how many birdhouses can he build in 4 hours?

Answers

2 birdhouses in 30 minutes = 4 birdhouses per hr.

for 4 hrs......4 x 4 = 16 birdhouses in 4 hrs

Tim says -40°f is equal to -40°c. explain why this is true.

Answers

Let C = degrees Celsius and F = degrees Fahrenheit $C = (F - 32) * (5)/(9)\n\n$ $= (-40 - 32) * (5)/(9)\n\n$ $= (-72) * (5)/(9)\n\n$ $= -(360)/(9) \n\n$ $= -40$

$^(\circ)C=(^(\circ)F-32)\cdot(5)/(9)\n\n^(\circ)C=(-40-32)\cdot(5)/(9)\n^(\circ)C=-72\cdot(5)/(9)\n^(\circ)C=-8\cdot5\n^(\circ)C=-40$

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