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Murrr4er [49]
3 years ago
8

A ball's position, in meters, as it travels every second is represented by the position function s(t) = 4.9t2+ 350. Include unit

s in your answer.
What is the velocity of the ball after 2 seconds?
Mathematics
1 answer:
loris [4]3 years ago
3 0

We are given the distance as a function of time:

s = 4.9 t^2 + 350

 

To get the velocity, we take the first derivative and substitute the value of t = 2:

ds = 9.8 t dt

ds / dt = 9.8 t

velocity = 9.8 (2)

<span>velocity = 19.6 m/s</span>

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two angles in a triangle mesaure 65 degrees and 75 degrees what is the measure of the third angle of the triangle
podryga [215]

Answer:

40°

Step-by-step explanation:

The interior sum of a triangle is 180°.  Since we have two known angles we will subtract those values from 180 to obtain our third angle and so:

180°-65°-75°=40°


8 0
3 years ago
At the movies, Hunter bought 3 popcorn and 5 drinks. Each popcorn
anastassius [24]

Answer:

P= $2.75

Step-by-step explanation:

So first we need to create our system of equations

since each popcorn is 0.40 less than each drink we can make the equation:

D - 0.40 = P we can rewrite that as P + 0.40 = D so that we have D by its self.

Next, we create the overall equation:

$24.00 = 3P + 5D

Now plug in D from the first equation into the second equation:

$24.00 = 3P + 5( P + 0.40)

Distribute the five and solve for P:

$24.00 = 3P + 5P + 2

$22.00 = 8P

P = $2.75

Now add 0.40 which would be $3.15 and plug it into the first equation just to make sure that the answer is correct.

7 0
4 years ago
What is 1/2 in degrees
Alexxandr [17]

Answer:

180

Step-by-step explanation:

half of 360 is 180

4 0
3 years ago
What is the measure of the angle of elevation from point
IRINA_888 [86]

Answer:

53

Step-by-step explanation:

it's 53. i think they are called alternate angles

5 0
3 years ago
The market bought grapes for $0.87 a pound and sold them for $1.15 a pound. What is the percent of increase rounded to the neare
DochEvi [55]
If A is the buying value & B the selling value, then the increase =

Increase = (B-A)/A = (1.15 - 0.87)/0.87 = 0.3218 or 31.18%

4 0
4 years ago
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