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Vilka [71]
4 years ago
13

What are the zeros of the polynomial function

Mathematics
1 answer:
myrzilka [38]4 years ago
7 0

Answer:

(b) 0,-5,4

Step-by-step explanation:

f(x)=x^3+x^2-20x\\x^3+x^2-20x=0\\x(x^2+x-20)=0\\x(x+5)(x-4)=0\\x=0, x+5=0, x-4=0\\x=0,x=-5,x=4

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????????????????????????
Fed [463]
A=10*8+((8-6)(15-10))/2
A=10*8+(2*5)/2
A=10*8+10/2
A=10*8+5
A=80+5
A=85 feet 
Therefore the answer is D

Hope this helps :)
3 0
4 years ago
John should drive to his workplace and back to home. On the way to the workplace it was raining, so he drove at speed of 42mph.
nataly862011 [7]

Answer:

48 mph

Step-by-step explanation: Add 42mph and 54 mph and you get 96.  To find the average of the two --- divide 96 by 2 and you get 48mph as the average speed for the entire trip.

3 0
3 years ago
Emily was offered a job after college earning a salary of $35,000. She will get a raise
Svetlanka [38]

Answer:

Step-by-step explanation:

Salary offered to Emily after college = $35000

Rise in her salary = $2000 every year

Let she works for x years in the company,

Salary rise in her salary = $2000x

Total salary after x years = $(35000 + 2000x)

The independent variable x represents NUMBER OF YEARS and dependent variable is the TOTAL SALARY,because the SALARY depends on the NUMBER OF YEARS WORKED.

A function these variables is C(x) = 35000 + 2000x

So, C(4) = 35000 + 2000(4) = 43000, meaning 4 years later Emily will earn a salary $43000.

3 0
3 years ago
jacks car used 18 gallons of gasoline to go 468 miles. At that rate, how many gallons would be used to go 754 miles? Explain you
matrenka [14]
Well if you take 468 and divide it by 18 you get 26 that 26mpg take 754 divide it by 26 and you get 29 and that's how many gallons he used
6 0
3 years ago
Read 2 more answers
Which type of triangle, if any, has side lengths of 11, 15, and 25?
abruzzese [7]

Answer:

Scalene triangle

Step-by-step explanation:

An equilateral triangle has 3 equal sides.

An isosceles triangle has 2 equal sides.

A scalene triangle has no equal sides.

4 0
3 years ago
Read 2 more answers
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