3 years ago

Use the associative property to write am expression equivalent to (n+3) +4

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

6 0

D is the correct answer.

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aleksandrvk [35]

Answer:

Step-by-step explanation:

Becky travels 0.5 miles per hour faster than Emma.

Emma's speed is 7.5 miles per hour. The slope of y = 8x, which is 8, is Becky's speed.

8 − 7.5 = 0.5 miles per hour faster

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3 years ago

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What is the answer to 3/7w-11=4/7w

stellarik [79]

$\frac{3}{7}w-11=\frac{4}{7}w\ \ \ \ \ \ \ |\cdot7\\\\3w-77=4w\\\\-77=4w-3w\\\\w=-77\\\\Answer\ is\ -77.$

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4 years ago

If f(x) = x2 – 1 and g(x) = 2x – 3, what is the domain of (fºg)(x)?

RUDIKE [14]

Answer:

(-∞, ∞)

Step-by-step explanation:

Given,

$f(x)=x^2-1 \ and\ g(x)=2x-3$

Then (fºg)(x) would be ,

$(2x-3)^2-1\\4x^2-12x+9-1\\4x^2-12x+8$

Since this is a polynomial, we know domain of a polynomial is all real number.

Therefore the domain of this (fºg)(x) is (-∞, ∞).

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3 years ago

What does<br> 9 x 2/5 equal

fomenos

Answer:

3 3/5

Step-by-step explanation:

9/1*2/5=18/5

=3 3/5

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4 years ago

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What is 910÷15 ?

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Answer:

60.666667

Step-by-step explanation:

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