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MAXImum [283]
2 years ago
9

Frazer cycles the first 20 miles at an average speed of 21 mph. The second part is more uphill, and he only manages 13mph. By wh

at percentage did the speed decrease
Mathematics
1 answer:
Artist 52 [7]2 years ago
3 0

Answer:

 38.1% decrease

Step-by-step explanation:

A percentage change is found from ...

 % change = (change)/(original amount) × 100%

 = (new value - original amount)/(original amount) × 100%

 = (13 -21)/21 × 100% = -8/21 × 100% ≈ -38.1%

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How is the translation of a figure on a grid different from a reflection of a figure?​
sveta [45]

Answer:

This means that on the coordinate plane, the coordinates for the vertices of the figure will change. To graph a translation, perform the same change for each point. ... In a reflection, the figure flips across a line to make a mirror image of itself.

Step-by-step explanation:

7 0
3 years ago
Which relationship has a zero slope? 55 Points!
pshichka [43]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
Elevator 1 in a building moved from ground position to a final position of +16 feet. Elevator 2 in the same building moved from
lilavasa [31]
928282827282828382082820ks
8 0
2 years ago
Approximately how many centimeters are in 54 ft?
dedylja [7]

Answer:

d) 54 ft = 1645.92 cm

Step-by-step explanation:

Given  : 54 ft.

To find : Approximately how many centimeters are in 54 ft.

Solution : We have given 54 ft.

We know

1 ft = 30.48 cm .

54 ft = 54 * 30.48 cm.

54 ft = 1645.92 cm.

Therefore, d) 54 ft = 1645.92 cm.

5 0
3 years ago
Please help me answer this question​
vfiekz [6]

9514 1404 393

Answer:

  the correct answer is marked

Step-by-step explanation:

The graph ranges vertically between 9 and 15, starting at 9 (the minimum) when x=0. The minimum appears again at x=350.

This means the vertical offset is (9+15)/2 = 12, and the amplitude is (15 -9)/2 = 3. The period is 350, so the coefficient of x is (2π/350). All of the answer choices agree on these parameters.

So, the selection comes down to an understanding of how the sine and cosine curves vary. The sine curve starts at zero and increases from there. The cosine curve starts at its maximum (1) and decreases. Here, the curve starts a its minimum and increases, so could be the opposite of the cosine function.

  y = -3cos(2πx/350) +12 . . . . . . matches choice C

5 0
3 years ago
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