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OLEGan [10]
3 years ago
14

Joni climbed 230 feet up a hill and then rappelled down 300 feet into a valley.

Mathematics
1 answer:
Gnom [1K]3 years ago
7 0

Answer:

230-300= -70

All you have to do is subtract :)

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Two skaters are practicing at the same time on the same rink. A coordinate grid is superimposed on the ice. One skater follows t
myrzilka [38]

Answer:

The skaters will collide at the points;

(2,28) and (4,24)

Step-by-step explanation:

The points they might collide will be the points when both y are equal;

-2x + 32 = -2x^2 + 18x

2x^2 -18x -2x + 32 = 0

2x^2 -20x + 32 = 0

2x^2 - 16x - 4x + 32 = 0

2x(x -8) -4( x -8) = 0

(2x -4)(x -8) = 0

2x = 4 or x = 8

x = 4/2 or x = 8

hence; x = 2 or 8

Now let’s get the y value

at x = 2, just substitute into any of the 2

y = -2x + 32

y = -2(2) + 32

y = -4 + 32 = 28

at x = 4

y = -2(4) + 32

y = -8 + 32

y = 24

The points that they will collide are;

(2,28) and (4,24)

4 0
3 years ago
Round each mixed number to the nearest whole number. Then, estimate the sum. 14/11/12+3/1/6
yanalaym [24]

14\11\12 + 3\1\6

4 0
2 years ago
Standard form for f(3,8) d: y=4
Ainat [17]

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a_sh-v [17]

Answer:

see below

Step-by-step explanation:

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