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matrenka [14]
3 years ago
13

I’m struggling with this page help please

Mathematics
1 answer:
zepelin [54]3 years ago
4 0

Answer:

1.) 40 mph

2.) $160 per month

3.) 2 goals per game

4.) $0.20 per ounce

5.) 1/4 mile or 0.25 mile per minute

6.) 8 tickets per minute

7.) $1.25 per Euro

8.) 25 miles per hour

9.) 2 flies per minute

10.) 3 problems per minute

11.) 15 barks per minute and 900 barks per hour

12.) 2 pages per minute

13.) 12/11 patients per hour

14.) $5 per car

15.) 7 cars per minute

16.) $2.50 per soft drink

17.) 3/4 points or 0.75 points per minute

18.) 8.5 minutes per mile

19.) 25 cents per ounce

20.) $9 per hour

Step-by-step explanation:

1.) 160/4 = 40

2.) 480/3 = 160

3.) 8/4 = 2

4.) 2.80/14 = .20

5.) 5/20 = 1/4 or .25

6.) 96/12 = 8

7.) 25/20 = 5/4 or 1.25

8.) 375/15 = 25

9.) 8/4 = 2

10.) 24/8 = 3

11.) 30/2 = 15

    There are 60 minutes in an hour, so 15 x 60 = 900

12.) 40/20 = 2

13.) 6 / (11/2)

     You'll want to turn 11/2 hours into one hour, so multiply 11/2 by its reciprocal, which is 2/11. Multiply 6 by 2/11 as well.

     (12/11) patients per hour

14.) 25/5 = 5

15.) 35/5 = 7

16.) 12.50/5 = 2.50

17.) 9/12 = 3/4 or .75

18.) 34/4 = 17/2 or 8.5

19.) 4/16 = 1/4 or $0.25 which is 25 cents

20.) 36/4 = 9

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If 11.25 inches snow fell in 4.5hrs,
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So,
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6 0
4 years ago
Verify that -5, 1/2, and 3/4 are the zeroes of the cubic polynomial 4x^3+20x^2+2x-3. Also verify the relationship between the ze
Finger [1]

Solution:

we have been asked to verify that -5, 1/2, and 3/4 are the zeroes of the cubic polynomial 4x^3+20x^2+2x-3

To verify that whether the given values are zeros or not we will substitute the values in the given Polynomial, if it will returns zero, it mean that value is Zero of the polynomial. But if it return any thing other than zeros it mean that value is not the zero of the polynomial.

Let f(x)=4x^3+20x^2+2x-3\\\\\text{when x=-5}\\\\f(-5)=4(-5)^3+20(-5)^2+2(-5)-3=-13\\\\\text{when x=}\frac{1}{2}\\

f( \frac{1}{2} ) = 4 ( \frac{1}{2} )^3+20(\frac{1}{2})^2+2(\frac{1}{2})-3=\frac{7}{2}\\\\

\text{when x=}\frac{3}{4}\\\\

f( \frac{3}{4} ) = 4 ( \frac{3}{4} )^3+20(\frac{3}{4})^2+2(\frac{3}{4})-3=\frac{183}{16}\\

Hence -5, 1/2, and 3/4 are not the zeroes of the given Polynomial.

Since sum of roots=\frac{-b}{a}= \frac{-20}{4}=-5\\

But -5+\frac{1}{2}+\frac{3}{4}=  \frac{-15}{4}\neq-5

Hence we do not find any relation between the coefficients and zeros.

Anyway if the given values doesn't represents the zeros then those given values will not have any relation with the coefficients of the p[polynomial.

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3 years ago
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mel-nik [20]

Answer:

128

Step-by-step explanation:

32 ÷ 4• 4 ÷ 2 • 2

8 .4.2.2

128

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