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mart [117]
3 years ago
5

During a baseball game, a player’s ball hit into the outfield is modeled by the equation h = –16t2 + 65t. A bird flying across t

he field follows the path modeled by the equation h = 8t + 20. Let t be the time since the ball is hit and h be the height. What do the intersection points of the equations represent?
Mathematics
2 answers:
natka813 [3]3 years ago
7 0
When two graphs intersect, it means something in real-life:

The baseball's flight path and the bird's flight path intersect. 

Therefore, the baseball hits the bird. (Technically, we can see that the baseball would hit the bird twice, but this is not likely.)


ioda3 years ago
3 0

C. the time when the height of the ball and the bird are the same


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Norma-Jean [14]

Answer:

C. 60

Step-by-step explanation:

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3 years ago
A certain car model has a mean gas mileage of 28 miles per gallon with a standard deviation 5 mpg. Suppose nothing is known abou
professor190 [17]
<span>the probability that the average mileage of the fleet us between 27.2 and 28.8  will be:
27.2<x<28.8
this will be:
P(x<28.8)-P(x<27.2)
To evaluate this we use the z-score formula:
P(x<28.2)=P(z<Z)
Z=(x-</span>μ)/σ
μ-mean
σ-standard deviation
thus
z=(28.2-28)/5=0.04
thus
P(x<28.2)=0.5160

p(x<27.2
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Answer: 0.0796
3 0
4 years ago
The diagram below shows the radius of the circular opening of a drinking cup.
ss7ja [257]

Answer:

25 cm

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Plug in the given radius (4 cm)

C=2\pi (4)\\C=8\pi\\C=25

Therefore, the circumference of the opening is approximately 25 cm.

I hope this helps!

3 0
3 years ago
In the rectangle below what is X?
sineoko [7]

Answer:

X= 82°

Step-by-step explanation:

Since we know ∠DAB is 41°, we also know that ∠CBA is 41°, since they must be equal.  This tells us that the bottom angle of that triangle must be 98°, since the sum of all interior angles must equal 180°.  Since this angle is supplementary to x, we know that x must equal 82°.

6 0
3 years ago
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prohojiy [21]

Answer:

If you plot these points you will see that the base is 6 (distance from E to F, count the squares).

The height will be 6 ( distance from line EF to D, again count the squares).

Using the Area formula you get A = 1/2 (6) (6) = 18

6 0
3 years ago
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