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MariettaO [177]
2 years ago
7

Need help please i really stink at math

Mathematics
1 answer:
Musya8 [376]2 years ago
5 0
The side length (x) is 25
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The vertex of this parabola is at (-3, -1). When the y-value is 0, the x-value is 4. What is the coefficient of the squared expr
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Answer:

S(-3, -1)

P(4, 0)

a = (Py - Sy) / (Px - Sx)^2

a = (0 - (-1)) / (4 - (-3))^2

a = 1 / 7^2

<u>a = 1 / 49</u>

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3 years ago
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2 years ago
A number w added to 2.3 is more than 18
DanielleElmas [232]
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7 0
3 years ago
2(4y-5)=70<br><br>how u do this​
steposvetlana [31]

Answer:

Step-by-step explanation:

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3 years ago
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An engineer is trying to design a runway for an airport. He knows that airplanes have the ability to accelerate at 3.3 m/s ^ 2 a
chubhunter [2.5K]

Answer:

The proposed 1600 meters runway length is not long enough

Step-by-step explanation:

The given parameters are;

The amount by which a plane can accelerate = 3.3 m/s²

The time it takes for a plane to lift off the ground = 35 seconds

The length of the runway on the blueprint = 1,600 meters

Therefore, from the equation of motion for distance traveled, s, acceleration, a, and time taken, t, we have;

s = u·t + 1/2·a·t²

Where;

u = The initial velocity

t = 35 seconds

a = 3.3 m/s²

Given that all planes will start motion from rest, we have;

u = 0 m/s

Therefore;

s = 0 × 35 + 1/2 × 3.3 × 35² = 2021.25 meters

Which indicates that the length of the runway a plane would need for take off should be at least 2021.25 meters long, therefore, the blueprint's 1600 meters runway length is not long enough.

7 0
3 years ago
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