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3 years ago

7

1) The public library surveyed 220 people about their favorite type of movie. If

1 answer:

VikaD [51]3 years ago

3 0

The answer is 55. First, you take 25% and turn it into a decimal (0.25). Then, multiply 220 by 0.25 (55). Since it’s only asking for the documentaries, the answer is just 55.

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2x^16-32x^4 what is the completely factored form

marysya [2.9K]

Answer:

B

Step-by-step explanation:

$~~~2x^{16} - 32x^4\\\\ = 2x^4(x^{12} -16)\\\\=2x^4\left[(x^6)^2 - 4^2 \right]\\\\=2x^4(x^6 -4)(x^6 +4)~~~~~~~~~~~~~~~~~~;[a^2 -b^2 = (a+b)(a-b)]\\\\=2x^4\left[(x^3)^2 - 2^2\right] (x^6 +4)\\\\=2x^4(x^3 -2)(x^3 +2)(x^6 +4)$

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2 years ago

Juniors and seniors were surveyed about whether they plan to attend a school dance.

allochka39001 [22]

Mistake D. The response from seniors was reversed.

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2 years ago

I need help with Function Operations

Leni [432]

Answer:

490

Step-by-step explanation:

d(x)=700-7(30)

7x 30=210

700-210=490

therefore,

r(x)=490

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2 years ago

Marco can swim at a speed of 45

diamong [38]

I hope this helps you

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3 years ago

Read 2 more answers

The population of bacteria in a Petri Dish is growing at a rate of 0.8t^3 + 3.5 thousand per hour. Find the total increase in ba

aliina [53]

Answer:

$p=9900\\$ bacterias in the initial two hours

Step-by-step explanation:

the growing rate is given by the ecuation

$p(t)=0.8(t)^{3} +3.5$ thousand per hour

for t=2 we have

$p(2)=0.8(2)^{3} +3.5 = 9.9$ thousand

$p=9900\\$ bacterias

In two hours we have 9900 bacterias

3 0

3 years ago