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3 years ago

Joseph ran a 6 mile race and 48 minutes which graph has a slope that best represents the average rate of speed during the race

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

4 0

Answer:

Step-by-step explanation:

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in a car race feild(round track that is 500m diameter an observer was starting point and the race started a red car finished 5 l

Eddi Din [679]

Answer:

Distance between the observer and the red car is $250 Sin \frac{\pi}{3}t$

Step-by-step explanation:

Diameter of field = 500 m

Radius of field = $\frac{Diameter}{2}=\frac{500}{2}=250 m$

Let R be the radius and the speed at which the car completes race be w

So, $w=\frac{2\pi}{T}$

Car finished 5 laps in minutes = 30

Car finished 1 lap in minutes = $\frac{30}{5}=6$

So, $w=\frac{2\pi}{6}=\frac{\pi}{3}$

Refer the attached figure

Angle between car and observer = wt

So, Distance between the observer and the red car is give as A sin wt

So, Distance between the observer and the red car= $250 Sin \frac{\pi}{3}t$

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2 years ago

The sum of two numbers is –40. One number

sasho [114]

Answer:

-27 + -13 = -40

Step-by-step explanation:

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2 years ago

Each of 7 students reported the number of movies they saw in the past year this is what they reported

kiruha [24]

Answer:

Mean= $\frac{11+9+11+15+17+13+17}{7}$

=13.28 ≈13

For median arrange in ascending or descending order. i am arranging in ascending order

9,11,11,13,15,17,17

cancel from left and right until one number is left

median=13

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2 years ago

The hypotenuse of a right triangle is 13cm long. the longer leg is 7 cm longer than the shorter leg. find the side lengths of th

Ad libitum [116K]

$5^2 + 12^2 = 13^2$

is the second or third Pythagorean triple on the list, which gives us the answer directly.

But if we didn't know that, let x be the short leg:

$x^2 + (x+7)^2 = 13^2$

$2x^2 + 14 x + 49 - 169 = 0$

$x^2 + 7x - 60 = 0$

$(x+12)(x-5)=0$

Rejecting the negative root, x=5, other side 12, the Pythagorean triple we found.

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3 years ago

Find the length of the missing side.

Aleksandr [31]

Answer:

Step-by-step explanation:

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2 years ago