2 years ago

Combine like terms to create an equivalent expression.

Mathematics

2 answers:

Andrews [41]2 years ago

5 0

Answer:

3w - 9/2 is the equivalent expression

RUDIKE [14]2 years ago

4 0

Answer:

$\boxed{\bold{3w+\frac{-9}{2} }}$

Explanation:

(6)(1/2w + -3/4)

= (6)(1/2w)+(6)(-3/4)

= 3w + -9/2

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B is the correct answer

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Line XY bisects and is perpendicular to AB and CD. CD = 10 and XY = 24. What is the length of AP?

myrzilka [38]

Answer:

<u>AP = 13</u>

Step-by-step explanation:

See the attached figure.

CD = 10 and XY = 24

Line XY bisects and is perpendicular to AB and CD

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2 years ago

In a running competition, a bronze, silver and gold medal must be given to the top three girls and top three boys. If 15 boys an

denis-greek [22]

Answer:

There are a total of possible 1820 results.

Step-by-step explanation:

Since there are two competitions, one for boys and one for girls, and we want all the possible results we will calculate the possible combinations for the boys and multiply them by the possible combinations for the girls. This is shown below:

$Boys = \frac{15!}{3!(15 - 3)!} = \frac{15!}{3!12!} = \frac{15*14*13*12!}{3!12!}\\Boys = \frac{15*14*13}{3*2*1}\\Boys = \frac{15*14*13}{3*2*1}\\Boys = 455$