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kap26 [50]
3 years ago
8

Please I need help!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Ray Of Light [21]3 years ago
7 0

Answer: 40

Step-by-step explanation:

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The distance between Columbus,Ohio and New York City is about 560 miles how many hours would it take the train to travel between
sergey [27]
Since the distance is 560 miles and the bus goes 268 miles per hour, the answer can be given as:
If 268=1 hour
  560=?
560/268*1 hour =2(rounded to nearest ones)
Therefore it will take the train approximately 2 hours to travel between both cities.
3 0
3 years ago
A tunnel is in the shape of a parabola. The maximum height is 16 m and it is 16 m wide at the base, as shown below.
NeX [460]
Vertex at the origin and opening down → y=ax^2
Width: w=16
x=w/2→x=16/2→x=8
x=8, y=-16→y=ax^2→-16=a(8)^2→-16=a(64)→-16/64=a(64)/64→-1/4=a→a=-1/4

y=ax^2→y=-(1/4)x^2

7 m from the edge of the tunnel → x=w/2-7=8 m-7 m→x=1 m
x=1→y=-(1/4)x^2=-(1/4)(1)^2=-(1/4)(1)→y=-1/4

Vertical clearance: 16-1/4=16-0.25→Vertical clearance=15.75 m

Please, see the attached file.

Answer: Third option 15.75 m

3 0
3 years ago
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Amy deposits $360 in an account that pays 1/2% simple annual interest. How much interest will she earn in 6 years?
12345 [234]

Answer:

Amy will earn $343.04

7 0
3 years ago
Need help on this math study guide
photoshop1234 [79]

8.

2 terms on left side, 3 on right side

9.

All variables count as coefficients,  so they’d be 8m, k, and -16k

10.

The constants are just numbers on their own, or without a variable next to it. Here it’d be 10 and -4


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3 years ago
Can someone help me with this question?
Anon25 [30]
1/10 x 90  I think that's the answer



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3 years ago
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