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3 years ago

A car travels at 180 miles in 7 hours. how many feet per second does the car travel?

1 answer:

Colt1911 [192]3 years ago

6 0

180/7=25.71428571 per hour
25.71428571/60=0.428571428 (per second
0.428571428/60=0.007142857 (per minute) miles
in foot it is 0.000595238

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In the right triangle PQR, sin P = 0.8. what is the length of RP?

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4 years ago

Spins a fair spinner numbered 1 - 5 and flips a fair coin. What is the probability of obtaining a factor of 15 and a tail?

Lesechka [4]

Answer: $\dfrac{3}{10}$

Step-by-step explanation:

Let A be the event of getting a factor of 15 when a fair spinner numbered 1 - 5 spins and B be the event that a fair coin is tossed.

The factors of 15 = $1,\ 3,\ 5$

Then ,the probability of obtaining a factor of 15 is given by :-

$P(A)=\dfrac{3}{5}$

The probability of getting a tail :-

$P(B)=\dfrac{1}{2}$

Since both the events are independent , thus

The probability of obtaining a factor of 15 and a tail is given by :-

$P(A)\times P(B)\\\\=\dfrac{3}{5}\times\dfrac{1}{2}=\dfrac{3}{10}$

Hence, the required probability : $\dfrac{3}{10}$

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3 years ago

Find the volume of a cylinder with a radius of 6 cm and height 15 cm? (to the nearest whole centimeter

Elis [28]

Answer:

1,696 cm^3

Step-by-step explanation:

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4 years ago

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Ksju [112]

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3 years ago

Find each product (4x - 5)(2x5 + x3 – 1)

TEA [102]

Answer:

8x^6-10x^5+4x^4-5x^3-4x+5

Step-by-step explanation:

Lest distribute the expression given

this is multiply the first term (4x) with the longer expression (2x^5+x^3-1) and then, multiply the second term (-5) with the longer expression (2x^5+x^3-1).

When the above is finish, simply sum all together.

4x* (2x^5+x^3-1)= 8x^6 +4x^4-4x

-5*(2x^5+x^3-1)=-10x^5-5x^3+5

The sum of all together (respecting the coefficient they belong) is shown:

8x^6-10x^5+4x^4-5x^3-4x+5

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4 years ago