3 years ago

Which statements are true of functions? Check all that apply.

Mathematics

1 answer:

IRINA_888 [86]3 years ago

7 0

Where the rest of the question?

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Write at least three expressions that are equivalent to 3(2x - 5)

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Answer:

6x - 15

6x - (5 · 3)

(3 · 2x) - 15

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Addison made 11 quarts of punch for her party. How many gallons of punch did she make? THANK YOU ;)

artcher [175]

11 quarts=2.75 gallons. 4 quarts eqals a gallon. Hope that helps!!!!

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3 years ago

A beautician sees clients each day to paint their nails. The function g(x) represents the number of finger nails painted, where

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Answer:D

Step-by-step explanation:

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2 years ago

Please help me idk this

d1i1m1o1n [39]

Answer:

105

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3 years ago

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Solve the following equation. Remember to check for extraneous solutions 7/(b+3) + 5/(b-3) = (10b-2)/(b²-9).

vlabodo [156]

Answer:

b= 2 is the solution for the given equation.

Step-by-step explanation:

Here, the given expression is:

$\frac{7}{(b+3)} + \frac{5}{(b-3)} = \frac{10b -2}{(b^{2} -9)}$

Simplifying Left side, we get

$\frac{7}{(b+3)} + \frac{5}{(b-3)}$

= $\frac{7(b-3) + 5(b+3)}{(b+3)(b-3)}$

Also, by ALGEBARIC IDENTITY: $x^{2} -y^{2} = (x+y)(x-y)$

So, $(b+3)(b-3) = b^{2} -9$

So, LHS becomes $\frac{7(b-3) + 5(b+3)}{b^{2} -9}$

Compare both Left side, Right side we get

$\frac{7(b-3) + 5(b+3)}{b^{2} -9}$ = $\frac{10b -2}{(b^{2} -9)}$

or, 7(b-3) + 5(b+3) = 10b -2

⇒ 7b - 21 + 5b + 15 = 10b -2

or, 12b - 10b = 6-2

or, 2b = 4 ⇒ b = 4/2 = 2

⇒ b= 2 is the solution for the given equation.

7 0

3 years ago