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BabaBlast [244]
3 years ago
14

Please help me answer this :) and explain how you got your answer ! ( will give brainslt )

Mathematics
1 answer:
Bess [88]3 years ago
5 0

Answer: y = - 0.4 x - 4.5

Step-by-step explanation:

Equation y=mx+b

m is the slope

x is *ANY* x coordinate

y is *ANY* y coordinate

b is y intercept or WHERE the point is on the Y AXIS

Lets look at the given:

Slope (m) is -2/5

Passes through point 15, -9/2

As you can see, the point goes through the Y axis at (-9/2)

Our equation is y = - 0.4 x - 4.5

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A ball is thrown and it follows a parabolic path. At each horizontal distance (x) the following equation models the ball’s heigh
Nataly_w [17]

Answer D). 9 ft is correct

Height of the ball at a horizontal distance of 10 feet is 9 ft

Step-by-step explanation:

A ball is thrown and it follows a parabolic path. At each horizontal distance (x) the following equation models the ball’s height (y).

Y(x) = -0.02x^{2} +0.8x+3

Question asked is " What will be height (Y) of the ball when X=10 ft "

Simply putting value of X in given equation

we get,

Y(x) = -0.02x^{2} +0.8x+3

Y(x) = -0.02(10)^{2} +0.8(10)+3

Y(x) = -0.02(100)} +8+3

Y(x) = -2 +8+3

Y(x) = 9

<em>Therefore,</em> Height of the ball at a horizontal distance of 10 feet is 9 ft

Answer D.  9 ft is correct

6 0
3 years ago
How many kilometers in a marathon​
irina [24]

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42.194988

Step-by-step explanation:

There are 42.194988 km in 1 marathon

5 0
4 years ago
Write down mrs Chauke balance on the 25 march 2021 in words​
Yanka [14]

Answer:

A line passes through the points (-4,1) and (-3,3). This line can be modeled by the equation y

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3 years ago
You deposit $1200 in an account. The account earns $120 simple
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We have to find the unit rate, so we have to divide what you earned in interest by the amount of months.

120/8=15

So you earn $15 per month

---

sorry if this doesn't help

7 0
3 years ago
The price of a video game is $35.60. If you purchase the video game for $30.26 with a coupon, what percent of the original price
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check: .85 * 35.6 = 30.26
4 0
4 years ago
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