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Zolol [24]
3 years ago
11

The distances in a children’s traithlon are swimming 1/4 mile,running 3/4 mile,and biking 3/4 mile.What is the total length of t

he race?
A.7/12
B.1 1/2
C.1 3/4
D.2 1/4
Mathematics
1 answer:
Marina86 [1]3 years ago
4 0

Answer:

C

Step-by-step explanation:

1/4+3/4+3/4= 7/4

Now, we need to express as a mixed number.

7/4 = (4+3)/4 = (4/4) + (3/4) = 1 + 3/4 = 1 3/4

Answer C.

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Answer:

1) The factors of  x^2-3x+2=0 are \mathbf{(x-1)(x-2)=0}

Option C is correct.

3) The factors of  x^2+2x-8=0 are \mathbf{(x-2)(x+4)=0}

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Step-by-step explanation:

1) Factor : x^2-3x+2=0

For factoring we need to break the middle term, such that there sum is equal to middle term of expression and product is equal to product of first and last term.

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Solving:

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Option C is correct.

3) Factor: x^2+2x-8=0

For factoring we need to break the middle term, such that there sum is equal to middle term of expression and product is equal to product of first and last term.

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Solving

x^2+2x-8=0\\x^2+4x-2x-8=0\\x(x+4)-2(x+4)=0\\(x-2)(x+4)=0

So, factors of  x^2+2x-8=0 are \mathbf{(x-2)(x+4)=0}

Option B is correct.

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Answer:

Step-by-step explanation:

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Step-by-step explanation:

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