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bija089 [108]
2 years ago
7

What is two ways to rewrite 21x^2 -42x +14 in equvalent form? i really need help here lol-​

Mathematics
1 answer:
kozerog [31]2 years ago
5 0

Answer:

7(3x^2-6x+2)

Step-by-step explanation:

21, 42, 14 they can be divided by 7 so we put 7 out

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Answer: 50.0 m

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3 years ago
6.2 yd<br> 8.5 yd<br> 15.7 yd<br> what is the volume
kkurt [141]

Answer:

827.39 yd cubed or ^3

Step-by-step explanation:

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3 years ago
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A variable force of 3x−2 pounds moves an object along a straight line when it is x feet from the origin. Calculate the work done
Verdich [7]

Answer:

2.70J.

Step-by-step explanation:

We have been given that a variable force of 3x^{-2} pounds moves an object along a straight line when it is x feet from the origin.  We are asked to find the work done in moving the object from x = 1 ft to x = 10 ft.

We know that dW=Fdx, where F represents force.

dW=3x^{-2}dx

Now, we will integrate both sides of equation as:

\int\limits{dw} =\int\limits^{10}_1 {3x^{-2} \, dx

Take the constant out:

\int\limits{1dw} =3\int\limits^{10}_1 {x^{-2} \, dx

w =3\int\limits^{10}_1 {x^{-2} \, dx

Upon applying power rule of integrals, we will get:

w =3\/[ \frac{x^{-2+1}}{-2+1} ]^{10}_1

w =3[ \frac{x^{-1}}{-1} ]^{10}_1

w =3[ -\frac{1}{x} ]^{10}_1

w =3[ -\frac{1}{10} -(-\frac{1}{1})]

w =3[ -\frac{1}{10}+\frac{10}{10})]

w =3[\frac{9}{10}]

w=2.70

Therefore, the work done by the object is 2.70J.

8 0
3 years ago
6. (01.01 MC)
andreyandreev [35.5K]

Step-by-step explanation:

Because it is 5 units to the left of 1 on a horizontal number line

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3 years ago
The Smiths spent $2,000 on clothes in a particular year. If they increase the amount they spend on clothes by 10% each year, the
Anton [14]
2000 * .1 = 200 + 2000 = 2200 (First year)

2200 *.1 = 220 + 2200 = 2420 (second year )

2420* .1 = 242 + 2420 = 2662 (third year )

2662 * .1 = 266.2 + 2662 = 2928.2 (fourth year)

They spent $2928.2 on clothing for 4 years.
8 0
3 years ago
Read 2 more answers
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