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Flura [38]
3 years ago
7

4a-3(a-2)=2(3a-2) How do you do this?

Mathematics
1 answer:
Alexxandr [17]3 years ago
7 0

Answer:

a=2

Step-by-step explanation:

4a-3(a-2)=2(3a-2)

4a-3a+6=a-4

a+6=6a-4

a-6a=-4-6

-5a=-10

divide both sides by -5

a=2

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Answer: I believe it would be 15.42

Step-by-step explanation:

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(4 pts) If a rock is thrown vertically upward from the surface of Mars with an initial velocity of 15m/sec
Yuliya22 [10]

Answer:

Step-by-step explanation:

I see you're in college math, so we'll solve this with calculus, since it's the easiest way anyway.

The position equation is

s(t)=-1.86t^2+15t  That equation will give us the height of the rock at ANY TIME during its travels. I could find the height at 2 seconds by plugging in a 2 for t; I could find the height at 12 seconds by plugging in a 12 for t, etc.

The first derivative of position is velocity:

v(t) = -3.72t + 15 and you stated that the rock will be at its max height when the velocity is 0, so we plug in a 0 for v(t):

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t = 4.03 seconds. This is how long it takes to get to its max height. Knowing that, we can plug 4.03 seconds into the position equation to find the height at 4.03 seconds:

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Calculus is amazing. Much easier than most methods to solve problems like this.

7 0
2 years ago
Rosa works due north of home. Her husband Juan works due east. They leave for work at the same time. By the time Rosa is 7 miles
polet [3.4K]
<span>This is a right triangle problem. c^2 = a^2 + b^2
Let b = 7 mi (Rosa's distance from home)
Let a = the east leg (Juan's distance from home
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(a+1)^2 = a^2 + 7^2

FOIL (a+1)(a+1)
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Combine like terms
a^2 - a^2 + 2a = 49 - 1
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a = 

<span>a = 24 mi, Juan's distance from home

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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What is;<br><br> 3+7+2-1+12-8÷19=
Novay_Z [31]

Answer:

22.5 repeated

Step-by-step explanation:

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How long is the trail on your table then multiply by 6.
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