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Reika [66]
3 years ago
8

Can someone please help me thank you

Mathematics
1 answer:
Serjik [45]3 years ago
5 0
Answer:

D

Step by step explanation:

You must use the radical expression rule to change the expression, which then becomes D
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Jason and Britton are driving to St. George. Jason got a 20 mile head start and drove an
harina [27]

Answer:

  2 hours, 150 miles

Step-by-step explanation:

The relation between time, speed, and distance can be used to solve this problem. It can work well to consider just the distance between the drivers, and the speed at which that is changing.

<h3>Separation distance</h3>

Jason got a head start of 20 miles, so that is the initial separation between the two drivers.

<h3>Closure speed</h3>

Jason is driving 10 mph faster than Britton, so is closing the initial separation gap at that rate.

<h3>Closure time</h3>

The relevant relation is ...

  time = distance/speed

Then the time it takes to reduce the separation distance to zero is ...

  closure time = separation distance / closure speed = 20 mi / (10 mi/h)

  closure time = 2 h

Britton will catch up to Jason after 2 hours. In that time, Britton will have driven (2 h)(75 mi/h) = 150 miles.

__

<em>Additional comment</em>

The attached graph shows the distance driven as a function of time from when Britton started. The distances will be equal after 2 hours, meaning the drivers are in the same place, 150 miles from their starting spot.

3 0
1 year ago
An art teacher buys 9 bags of cotton balls there are 68 cotton balls in each bag whitch expression is best to estimate the numbe
Phantasy [73]

Answer:

612

Step-by-step explanation:

9 x 68 = 612

8 0
3 years ago
What percentage of the population voted for trump?
Vilka [71]
22.5% voted for trump for president
7 0
3 years ago
A triangle has an area of 50cm its base is four times the height what is the height?
babunello [35]
So area=1/2 base times height
50=1/2 base times height
multiply both sides by 2
100=base times height
base=4height
100=4height times height
100=4height^2
divide 4
25=height^2
squarer root
5=height

subisute
base=4(5)
base=20

height=5


7 0
3 years ago
FAST PLEASE VERY INPORTANT
Wittaler [7]

-24°F

Step-by-step explanation:

-18°F + 13°F - 19°F

= -5°F - 19°F

= -24°F

5 0
2 years ago
Read 2 more answers
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