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Paladinen [302]
3 years ago
11

Simplify: (6x2 + x - 7)(4x - 6) HELPP

Mathematics
1 answer:
Mariulka [41]3 years ago
3 0

Answer:

24x^3−32x^2-34x+42

Step-by-step explanation:

Distribute 4x(6x^2+x-7) and -6(6x^2+x-7)

You get 24x^3-32x^2-34x+42-32x^2+42

Then simplify the answer by adding/subtracting each variable, since you can only simplify by like terms. And you get your answer

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Skyler goes to a school which has 100 students in it. She asks 40 random students whether they like the new 8.30 am start to the
dybincka [34]

Answer:

75 students

Step-by-step explanation:

first write a ratio of the students asked to students dislike

40:30, 40 to 30, or 40/30

now simplify the ratio

4/3

now she asked 40 students, so we have to find out the unit rate

so we have to flip the fraction to 3/4 and then divided the top and bottom by 4

0.75/1

now multiply the top and bottom by 100

75/100

75 students

8 0
2 years ago
Sarah drives her car 180 miles in 225 minutes.What is her average speed in miles per hour?
lukranit [14]
Speed = distance ÷ time
6 0
3 years ago
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Find the surface area of a cylinder with the following dimensions. Use 3. 14 for $. Round your answer to the nearest
kupik [55]

Answer:

b

Step-by-step explanation:

r=d/2=11.4/2=5.7

slant surface area=2πr*h=11.4×3.14×4.4=157.5024 cm^2

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total surface area=157.5024+204.0372=361.5396=361.5 sq. cm

7 0
2 years ago
You buy a lottery ticket to a lottery that costs $10 per ticket. There are only 100 tickets available to be sold in this lottery
riadik2000 [5.3K]

Answer:

Loss of $1.20

Step-by-step explanation:

The possible outcomes for this lottery and their probabilities are:

- a 1 in 100 chance of winning $450

- a 2 in 100 chance of winning $120

- a 4 in 100 chance of winning $30

- a 93 in 100 chance of losing $10

Therefore, the expected value of this lottery when buying one ticket is:

E(X) = \frac{1}{100}*\$450+ \frac{2}{100}*\$120+ \frac{4}{100}*\$30-\frac{93}{100}*\$10 \\E(X) = -\$1.2

Therefore, you are expected to lose $1.2 per ticket.

3 0
3 years ago
(02.06 LC)
marta [7]
Correct answer is B


25 characters
3 0
3 years ago
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