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Darya [45]
3 years ago
14

I need help on these problems THANK YOUUU

Mathematics
2 answers:
Rudiy273 years ago
8 0

Answer:

2. m = 1

3. y - (-1) = 5 (x - 4)

4. y = 5x - 21

Step-by-step explanation:

<u>Work for #2</u>

m (slope) = \frac{y2 - y1}{x2 - x1} \fracyx}

m = \frac{-1 - 2}{-2 -1}

m = \frac{-3}{-3}

m = 1

<u>Work for #3</u>

y = -1/5x + 3 and through (4, -1)

The slope of a perperndicular line is the negative reciprocal. So, it is 5.

Plug this number into point-slope form. Use the points you were given (4,-1) in the equation as well.

y - y1 = m (x - x1)

y - (-1) = 5 (x - 4)

y + 1 = 5x - 20 (Only if you are supposed to simplify it)

<u>Work for #4</u>

Finish solving the equation

y - (-1) = 5 (x - 4)

y + 1 = 5x - 20

y = 5x - 20 - 1

y = 5x - 21

pychu [463]3 years ago
5 0

Answer:

1 is (2.-2) but i cant see the rest

Step-by-step explanation:

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Nuetrik [128]

Answer:

115 degrees

Step-by-step explanation:

The line RQ meets at 115 degrees (Look at the bottom numbers)

It's not 65 degrees because the angle is obtuse.

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3 years ago
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2 years ago
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Neporo4naja [7]
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A ball is launched from a 682.276 meter tall platform. the equation for the ball's height h at time t seconds after launch is h(
blagie [28]

The maximum height the ball achieves before landing is 682.276 meters at t = 0.

<h3>What are maxima and minima?</h3>

Maxima and minima of a function are the extreme within the range, in other words, the maximum value of a function at a certain point is called maxima and the minimum value of a function at a certain point is called minima.

We have a function:

h(t) = -4.9t² + 682.276

Which represents the ball's height h at time t seconds.

To find the maximum height first find the first derivative of the function and equate it to zero

h'(t) = -9.8t = 0

t = 0

Find second derivative:

h''(t) = -9.8

At t = 0; h''(0) < 0 which means at t = 0 the function will be maximum.

Maximum height at t = 0:

h(0) = 682.276 meters

Thus, the maximum height the ball achieves before landing is 682.276 meters at t = 0.

Learn more about the maxima and minima here:

brainly.com/question/6422517

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