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aksik [14]
2 years ago
13

Rosa can run 4 miles in 56 minutes. how many miles does rosa run is she runs for 42 minutes

Mathematics
2 answers:
Setler [38]2 years ago
5 0
3 miles in 42 minutes
sineoko [7]2 years ago
4 0
56/42= 1.33333....
4/1.33333...= 3

So Rosa can run 3 miles if she runs at the same speed for 42 minutes

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Anyone need 30 points?
postnew [5]

Answer:uh kinda

Step-by-step explanation:

4 0
2 years ago
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Ayuda necesito resolver este problema con procedimiento ;)
Paraphin [41]

x^3-2x^2+x-1 is one of the prime factors of the polynomial

<h3>How to factor the expression?</h3>

The question implies that we determine one of the prime factors of the polynomial.

The polynomial is given as:

x^8 - 3x^6 + x^4 - 2x^3 - 1

Expand the polynomial by adding 0's in the form of +a - a

x^8 - 3x^6 + x^4 - 2x^3 - 1 = x^8 -2x^7 + 2x^7 - 4x^6 +x^6 + 2x^5 -2x^5- 3x^4 + 4x^4 + 2x^3 -6x^3+2x^3- x^2  -3x^2 +4x^2-2x+2x-1

Rearrange the terms

x^8 - 3x^6 + x^4 - 2x^3 - 1 = x^8 -2x^7 + 2x^5 - 3x^4 + 2x^3 - x^2 + 2x^7 - 4x^6 + 4x^4 -6x^3+4x^2-2x+x^6-2x^5+2x^3-3x^2+2x-1

Factorize the expression

x^8 - 3x^6 + x^4 - 2x^3 - 1 = x^2(x^6-2x^5+2x^3-3x^2+2x-1) + 2x(x^6-2x^5+2x^3-3x^2+2x-1) + 1(x^6-2x^5+2x^3-3x^2+2x-1)

Factor out x^6-2x^5+2x^3-3x^2+2x-1

x^8 - 3x^6 + x^4 - 2x^3 - 1 = (x^2+2x + 1)(x^6-2x^5+2x^3-3x^2+2x-1)

Express x^2 + 2x + 1 as a perfect square

x^8 - 3x^6 + x^4 - 2x^3 - 1 = (x+1)^2(x^6-2x^5+2x^3-3x^2+2x-1)

Expand the polynomial by adding 0's in the form of +a - a

x^8 - 3x^6 + x^4 - 2x^3 - 1 = (x+1)^2(x^6- 2x^5+x^4-x^4-x^3 +x^3-2x^3-x^2 -2x^2 +x+x - 1)

Rearrange the terms

x^8 - 3x^6 + x^4 - 2x^3 - 1 = (x+1)^2(x^6- 2x^5+x^4-x^3-x^4-2x^3-x^2+x+x^3-2x^2 +x - 1)

Factorize the expression

x^8 - 3x^6 + x^4 - 2x^3 - 1 = (x+1)^2(x^3(x^3-2x^2+x-1) -x(x^3-2x^2+x-1)+1(x^3-2x^2+x-1))

Factor out x^3-2x^2+x-1

x^8 - 3x^6 + x^4 - 2x^3 - 1 = (x+1)^2(x^3 -x+1)(x^3-2x^2+x-1)

One of the factors of the above polynomial is x^3-2x^2+x-1.

This is the same as the option (c)

Hence, x^3-2x^2+x-1 is one of the prime factors of the polynomial

Read more about polynomials at:

brainly.com/question/4142886

#SPJ1

4 0
1 year ago
9/81 is equivalent to which fraction? please explain
alexdok [17]
9/81 can be simplified into 1/9. You divide both the top and bottom part of the fraction by 9.
9/9=1 and 81/9=9 to get 1/9. but that's it's simplified version. equivalent fractions of it can be almost anything. like, 1/9 can equal 2/18, 3/27, or 4/36.
8 0
3 years ago
Read 2 more answers
4x+15=3(x+5)<br> A. Infinitesolutions<br> B.x=3<br> C.x=-2<br> D.x=-3
Scorpion4ik [409]

Answer:

Answer is below

Step-by-step explanation:

Simplify both sides of the equation

4x+15=3(x+5)\\4x+15=(3)(x)+(3)(5)\\Distribute\\4x+15=3x+15

Subtract 3x from both sides.

4x+15-3x=3x+15-3x\\x+15=15

Subtract 15

x+15-15=15-15\\x=0

No solutions

8 0
3 years ago
A small town has three traffic lights in a row down its main street. The chance of any one light being green is 50%. What is the
11Alexandr11 [23.1K]
P(GGG)=(1/2)^3

1/8

.............
6 0
3 years ago
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