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4 years ago

Which answer shows the foil mthod used to expand the product below (2x+3)(2x^2-5)

2 answers:

7 0

FOIL = First, Outside, Inside, Last

First - 2x*2x^2
Outside - 2x*(-5)
Inside - 3*2x^2
Last - 3*(-5)

Putting all of this together, we get 2x*2x^2 + 2x*(-5) + 3*2x^2 + 3*(-5), which would be option B

sattari [20]4 years ago

4 0

I think its 4x^3-10x+6x^2-15

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587 divided by 6 check your work

Tema [17]

Answer:97.8

Step-by-step explanation:

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4 years ago

If 12x=12−−√11, what value of x makes this equation true?

Solnce55 [7]

Answer:

$\dfrac{1}{11}$

Step-by-step explanation:

Apply exponent rule:

$\sqrt[n]{a} =a^{\frac{1}{n}}$

$\implies \sqrt[11]{12}=12^{\frac{1}{11}}$

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$\implies x = \dfrac{1}{11}$

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3 years ago

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From 145 pounds to 132 pound percent decrease

Airida [17]

145-132= 13

13/145 = 0.089655 rounded to 9

9%

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3 years ago

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Y+4−1=18 i need help plz

d1i1m1o1n [39]

Answer:

y=15

Step-by-step explanation:

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3 years ago

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Admission for a water park is 17.50 per day.a season pass cost 125. How many days must you go to the water park to make buying t

solmaris [256]

You must go to the water park for 8 days to make buying the season pass worth it.

Explanation

Suppose, the number of days you must go to the water park is $x$

Admission for the park is 17.50 per day. So, the total cost for $x$ days will be: $17.50x$

Given that, the season pass cost 125. So, the equation will be.....

$17.50x=125\\ \\ x=\frac{125}{17.50}=7.142...\\ \\ x \approx 8$

(As the number of days can't be in decimal)

So, you must go to the water park for 8 days to make buying the season pass worth it.

7 0

3 years ago