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Makovka662 [10]
3 years ago
13

Please help! Thank you!

Mathematics
1 answer:
zysi [14]3 years ago
5 0
Your factors are (x+7)(x-5)(x+3)

multiply the first 2 to get (x^2 + 2x - 35)(x+3)

Now multiply in the 3rd one
x^3 + 2x^2 - 35x + 3x^2 + 6x - 105 now combine like terms
x^3 + 5x^2 -29x - 105 or A
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Peter is saving money to buy an MP3 Player. After one month, he has $50. After two months he has $85. After three months, he has
taurus [48]

Answer:

9 months

Step-by-step explanation:

peter is saving 35 dollars per month.  

295=35x

295/35=8.42 which is less than 295

9 is an approximate answer

35*9 equals 315, which is enough to pay 295 and have 20 dollars left over

8 0
4 years ago
3. It took Ellie 4 hours to paddle her canoe 10 km upstream. After a
Gnoma [55]

Answer: A) 2.5 km/ hour

You divide 10/4 and get 2.5, so 2.5km an hour.

B) 6.25 km/ hour

You have 2.5km/ hour plus 10km/ hour OVER 2. This would equal 12.5 km over 2

You then get 6.25 from doing 12.5/2

4 0
3 years ago
Which polynomial function gets larger and larger in the negative direction as x gets
Whitepunk [10]

Answer:

f(x) = 8x^6 + 1

Step-by-step explanation:

We want to examine which polynomial function grows larger and larger as the negative variable rises. We'll see that option d is correct: f(x) = 8x6 + 1

There are two things to keep in mind here.

The polynomial grows quicker as the exponent increases.

When a negative integer is evaluated with an even exponent, the result is always positive.

Then all the polynomials with an even leading exponent become larger and larger as x grows in the negative direction, especially the one with the biggest leading exponent, which is:

3 0
2 years ago
Rain is falling steadily at 5.2 millimeter per hour. How much rain fall in 90 minutes?
allsm [11]

Answer:

7.8 ml

Step-by-step explanation:

1 hour = 5.2 ml of rain

90 mins = 1 hours and 30 mins

5.2 / 2 = 2.6

5.2 + 2.6 = 7.8

7 0
3 years ago
Use pemdas 3 x (5 - 1) + 13 write 3 steps
RoseWind [281]

Answer:

The answer is 25

Step-by-step explanation:

First you do the math in the parenthesis 5-1=4

Next you multiply that sum by 3. 3x4=12

Lastly you add the 12 to 13. 12+13=25

7 0
3 years ago
Read 2 more answers
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