3 years ago

Which of the following is equal to 250 milliliters?

Mathematics

1 answer:

Lostsunrise [7]3 years ago

4 0

I think the answer is a

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Simplify the rational expressions. State any excluded values. X^2-4/2-x

tatiyna

Answer:

-x-2; x $\neq$ 2

Step-by-step explanation:

$\frac{x^2-4}{2-x}$ -->

$\frac{(x-2)(x+2)}{(2-x)}$ -->

-(x+2); x CAN'T equal 2, because the denominator of the original fraction would be 0, which would make the term undefined.

4 0

3 years ago

The perimeter of a building is 78 feet. The width of the building is seven more than three times the length of the building. Wha

Alchen [17]

P=2l+2w

W=7+3l

So substitute into the original equation

P=2l + 2(7+3l)

78=2l +14 + 6l

-14 -14

—————-

64=8l

8=length

W=7+3l

= 7+3(8)

=7+24

=31

Check your work

Perimeter=8+8+31+31

=78

Hope this helps

8 0

3 years ago

What is this asking? 8x-4y=12

kkurt [141]

Maybe from the equation of a line from y=mx+c
Where c ( intercept) is -12

8 0

3 years ago

PlzplPzlpzlzpzl .......i beg u do this easy question for me ....

jeka94

Answer: $-p^2-(q+r)^2$

Work Shown:

I'm assuming your teacher wants you to factor as much as possible.

$-p^2-q^2-r^2-2qr\\\\-p^2-q^2-2qr-r^2\\\\-p^2-(q^2+2qr+r^2)\\\\-p^2-(q+r)^2\\\\$

In the last step, I used the rule that $(a+b)^2 = a^2+2ab+b^2$

We cannot factor any further. If the first term was $p^2$ instead of $-p^2$ , then we could use the difference of squares factoring rule.

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3 years ago

Write a negative or a positive integer to describe the following situation:

Ierofanga [76]

positive 350m because it's above sea level.

8 0

3 years ago

Read 2 more answers