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AURORKA [14]
2 years ago
7

(5x^{2}+3x-1)-(3x^{2}-4x-6) find the difference PLEASE HURRY IM TIMED

Mathematics
2 answers:
Andreyy892 years ago
6 0

Answer:

=2x2+7x+5

Step-by-step explanation:

Rus_ich [418]2 years ago
4 0

Answer:

2x^2 + 7 x + 5

Step-by-step explanation:

I can't waste time giving an explanation if you're timed ;) if this helped you, leave a brainliest! :)

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Suppose that two people standing 2 miles apart both see the burst from a fireworks display. After a period of​ time, the first p
Usimov [2.4K]

Answer: approximately 5148 feet directly north of point A

This is equivalent to 0.975 miles

==============================================================

Explanation:

Check out figure 1 (attached image below) to see how the drawing is set up.

Points A and B are separated by 2 miles, or 10560 feet. Use the conversion factor 1 mile = 5280 feet.

Because sound travels at roughly 1100 feet per second (assuming all of the conditions are right), this means that after x seconds, the sound wave has traveled a total distance of 1100x feet. This is the distance from A to C. Point C is the firework location.

The distance from B to C is 1100(x+6) feet because it takes 6 more seconds for the soundwave to travel from C to B, compared from C to A.

Note that triangle ABC is a right triangle. The 90 degree angle is at point A.

We can use the pythagorean theorem to solve for x

See figure 2 in the attached images to see the steps on solving for x. The numbers get quite big, though in the end x is fairly small. We end up with x = 4.68, which is approximate due to the 1100 figure being approximate.

This means the sound wave takes about 4.68 seconds to go from point C to point A.

With this x value, we can compute the expression 1100x to get

1100*x = 1100*4.68 = 5,148 feet

To convert this to miles, divide by 5280

(5148)/(5280) = 0.975

Therefore,

5148 feet = 0.975 miles

6 0
3 years ago
If the mean of the data set is 35 apples, find the number of apples on the Granny Smith tree,
photoshop1234 [79]

Answer:

can i please have more details please?

Step-by-step explanation:

5 0
2 years ago
Ax+z=aw-y solve for a. show work please
dusya [7]
So the question is asking to covert the said formula by making the a as the solution or the ask of the said equation, well in that matter, I would say, base on my own conversion and further computation about the said equation, the value of a is (y+z)/(x+w).  I hope this would help 
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3 years ago
Circle the following 2 terms that correspond with the domain of a function:
Nitella [24]

Answer:

x-values

independent variable

Step-by-step explanation:

x (the independent variable) is the domain

y (the dependent variable) is the range

8 0
3 years ago
Read 2 more answers
What is the solution to x^6 – 6x ^5 + 15x ^4 – 20x ^3 + 15x^ 2 – 6x + 1 ≥ 0? x = 0 x = 1 all real numbers all real numbers excep
g100num [7]

Answer:

Answer: C all real numbers

8 0
2 years ago
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