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marissa [1.9K]
3 years ago
5

Sydney ran 400 meters in 1 minute and 20 seconds. What was Sydney’s average rate in meters per second?

Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
8 0
The average rate is 5 mps because 80 seconds times 5 equals 400 meters
Nadusha1986 [10]3 years ago
5 0

Answer:

The average rate is 5 mps

Step-by-step explanation:

because 80*5=400 meters

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How much did benji earn if he got $50 for mowing the lawn plus a 10% tip?
asambeis [7]

Answer:

$55

Step-by-step explanation:

50+(50*0.1)

50+5

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6 0
3 years ago
Write a quadratic function in vertex form whose graph has the vertex (-3,5) and passes through the point (0,-14)
dsp73

Answer:

f(x) = -19/9(x + 3)² + 5

Step-by-step explanation:

Given the vertex, (-3, 5) and the point, (0, 14):

Use the following quadratic equation formula in vertex form:

f(x) = a(x - h)² + k

where:

(h, k) = vertex

a = determines whether the graph opens up or down, and makes the graph wide or narrow.

<em>h</em><em> </em>= determines how far left or right the parent function is translated.

<em>k</em> =  determines how far up or down the parent function is translated.

Plug in the values of the vertex, (-3, 5) and the given point, (0, 14) to solve for <em>a</em>:

f(x) = a(x - h)² + k

14 = a(0 + 3)² + 5

14 = a(3)² + 5

14 = a(9) + 5

Subtract 5 from both sides:

-14 - 5 = 9a

-19 = 9a

Divide both sides by 9 to solve for a:

-19/9 = 9a/9

-19/9 = a

Therefore, the quadratic function in vertex form is:

f(x) = -19/9(x + 3)² + 5

Please mark my answers as the Brainliest, if you find this helpful :)

5 0
2 years ago
Is this figure a polygon? Explain.
denis-greek [22]
Yes.

It’s a flat figure (2D), and all of its lines are connected with one another. There aren’t any open points/lines. It’s closed to create a shape. This means it’s a polygon.
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What's the formula???
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3 years ago
HELP FAST!<br> A) 180 = 30 + (x + 60)<br><br> B) 180 + 30 = x + 60<br><br> C) 90 = 30 + (x + 60)
Fantom [35]
A) 180 = 30 (x+60) :))) of
6 0
3 years ago
Read 2 more answers
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