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3 years ago

Write the ration for sin A and cos A

Mathematics

1 answer:

Archy [21]3 years ago

6 0

$sine=\dfrac{opposite}{hypotenuse}\\\\cosine=\dfrac{adjacent}{hypotenuse}$

$\sin A=\dfrac{3}{5},\ \cos A=\dfrac{4}{5}$

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Marlee drove 60 miles song 2 gallons of gas. whitch is the unit rate in fraction forms?

Orlov [11]

Answer:

the unit rate is 30 miles 1 gallon

5 0

3 years ago

A California licence plate consists of a sequence of seven symbols: number, letter, letter, letter, number, number, number, wher

tino4ka555 [31]

Answer:

There is a 44.73% probability that all symbols are different.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

There are 26 total letters and 10 total digits.

The plate has the following format:

number, letter, letter, letter, number, number, number

Total outcomes

Each number can have 10 values.

Each letter can have 26 values.

There are four numbers and 3 letters.

So there are

$10^{4}*26^{3} = 175760000$ possible plates

Desired outcomes

We cannot have repeated values.

So, for example, the first number can be any of the 10 digits. The second can be any of them, bar the first one. So 9 possible digits

The same logic for the letters, 26, then 25, then 24.

So there are

10*26*25*24*9*8*7 = 78624000 plates in which all symbols are different.

(a) What is the probability that all symbols are different

$P = \frac{78624000}{175760000} = 0.4473$

There is a 44.73% probability that all symbols are different.

7 0

3 years ago

Brainiest for An Actuate answer

const2013 [10]

Answer:

$cos(x)=\frac{8}{17}$

Step-by-step explanation:

The ratio will remain the same because all the sides will be equally increased. The angles will also remains the same.

Best Regards!

5 0

3 years ago

A fisherman can row upstream at 5 mph and downstream at 10 mph. He started rowing upstream until he got tired and then rowed dow

goblinko [34]

Answer:

We have been given that the upstream speed is and the down stream speed is .

Let the fisherman traveled a distance of x miles.

The total time of the trip is 6 hours.

Relations between speed (s), time (t) and distance (d) is

Hence,

Time upstream + time downstream = 6

lcm = 10

Cross multiplying,

x = 20 miles .. Answer.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Estimate how many tennis balls can fit into a small room

gavmur [86]

a tennis ball has a diameter of about 2.5 inches

so volume of a tennis ball is: 4/3 x pi x r^3 = 8.2 cubic inches ( estimating you could say 8 cubic inches

1 cubic foot = 1728 cubic inches

so you could fit 1728/8 = 216 tennis balls in a cubic foot.( estimated)

you would then need to calculate the volume of the room

lets say a small room is 9 foo by 9 foot by 8 feet high

9 x 9 x 8 = 648 square feet

now multiply the 216 by the square feet of the room

216 * 648 = 139,968tennis balls

now because they are round, there will be empty space around them

so you could estimate about 139,000 tennis balls would fit I a 9 x 9 room that is 8 feet high.

You didn't give the dimensions of the room, but this gives you the idea of how to estimate

4 0

3 years ago