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Musya8 [376]
2 years ago
9

Coach DeCaro records the cross country runners' times compared to their personal best times.

Mathematics
2 answers:
posledela2 years ago
5 0

Answer: Option B

( ik it's late but i needed the points lol)

Step-by-step explanation:

I got it right on my unit test on edge2021

love history [14]2 years ago
3 0

Answer:I think its C but Im not sure

Step-by-step explanation: SMILE MORE!!! :D

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John ran the​ 100-m dash with a time of 9.87sec. If this pace could be maintained for an entire 26-mi marathon, what would his t
stiv31 [10]

Answer:

1 hour

8 min

49 sec

Step-by-step explanation:

we know that

1 m=3.281 ft

1 mi=5,280 ft

<em>Convert 26 mi to ft</em>

26 mi=26*5,280=137,280 ft

<em>Convert 137,280 ft to m</em>

137,280 ft=137,280/3.281=41,840.90 m

using proportion

9.87/100=x/41,840.90

x=41,840.90*(9.87)/100

x=4,129.70 sec

Remember that

1 hour=3,600 sec

1 hour=60 min

1 min=60 sec

4,129.70 sec=4,129.70/3,600= 1.147 h

0.147*60=8.82 min

0.82*60=49 sec

therefore

1 hour

8 min

49 sec

5 0
3 years ago
What is the image of (-1, 1) after a dilation of 2?<br> (1,3)<br> (-2, 2)<br> (2, 2)
Amanda [17]
The answer is b. (-2,2)

Since it is a dilation of 2, multiply each number by 2.

-1*2=-2
1*2=2

So after the dilation, it would be (-2,2)
5 0
3 years ago
It is given that R=2q-5 and Q=3p+2. Find the numerical value of R when p=3​
saveliy_v [14]

Answer:

R = 17

Step-by-step explanation:

R = 2q - 5

Q = 3p + 2

Find the numerical value of R when p = 3

R = 2q - 5

R = 2(3p + 2) - 5

R = 6p + 4 - 5

R = 6p - 1

When p = 3

R = 6(3) - 1

R = 18 - 1

R = 17

4 0
2 years ago
which of the following is the equation of a line in slope-intercept form for a line with slope = 1/2 and y intercept at (0,-4)?
oee [108]

Answer:

y = \frac{1}{2} x - 4

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = \frac{1}{2} and c = - 4 , then

y = \frac{1}{2} x - 4 ← equation of line

7 0
2 years ago
If 29 cos 0=21 find the value of 1/sin0-tan0..
Fantom [35]
It should be 21 20. Sorry if I got it wrong
7 0
2 years ago
Read 2 more answers
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