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soldier1979 [14.2K]
3 years ago
8

Can someone please help me with question 1, I will mark you as a brainest and I'll thank you

Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0
I believe it is 86.4
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Maria throws a softball straight up into the air with an initial velocity of 50 ft/sec. The ball leaves her hand when it is exac
Nataly_w [17]

Answer:

The equation that models the situation is s_{f} = 4+\frac{v_{f}^{2}-2500}{64.348}.

Step-by-step explanation:

Let suppose that effects from air friction and Earth's rotation can be neglected, so that the softball can be modelled experiment a free fall, that is, an uniform accelerated motion due to gravity. From we know the initial velocity and position of the position and we can determine the final position of the ball as a function of the final velocity:

v_{f}^{2} = v_{o}^{2}+2\cdot a \cdot (s_{f}-s_{o}) (1)

Where:

s_{o}, s_{f} - Initial and final position of the softball, measured in feet.

a - Acceleration, measured in meters per square second.

v_{o}, v_{f} - Initial and final velocities of the softball, measured in feet per second.

If we know that v_{o} = 50\,\frac{ft}{s}, a = -32.174\,\frac{m}{s^{2}} and s_{o} = 4\,ft, then the equation that models the situation is:

v_{f}^{2} = 2500-64.348\cdot (s_{f}-4)

Then, we clear the final position of the softball:

-\frac{v_{f}^{2}-2500}{-64.348} = s_{f}-4

s_{f} = 4+\frac{v_{f}^{2}-2500}{64.348}

The equation that models the situation is s_{f} = 4+\frac{v_{f}^{2}-2500}{64.348}.

8 0
2 years ago
Please help asap 18 pts + brainliest to right/best answer
saul85 [17]

Which two numbers add up to -29 and multiply to 100?

-25 and -4

Rewrite the expression

<u>(x - 25)(x - 4)</u>

7 0
3 years ago
13 mins left oh gees oh gosh
gavmur [86]

Answer:

I think that it is a quadratic

7 0
3 years ago
Find the circumference and area of a circle with a radius of 3
viktelen [127]

Answer:

circumference is 18.84

area is 28.26

Step-by-step explanation:

circumference of a circle is

2πr where r is radius

= 6×3.14= 18.8

area of a circle is πr²

= 3×3×3.14

= 28.26

use π = 3.14

8 0
3 years ago
83 simplified<br> whoever gets it right is the brainliest
Alina [70]
83 is a whole number and cannot be simplified.
8 0
3 years ago
Read 2 more answers
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