Find the zeros of x3 +2X^2-23x-60

Answers

Answer 1

Answer: Hello,

P(x)=x^3+2x²-23x-60
P(-4)=(-4)^3+2*(-4)²-23*(-4)-60=0
P(-3)=(-3)^4+2*(-3)²-23*(-3)-60=0
P(5)=5^3+2*5²-23*5-60=0
Zeros are -4,-3,5

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Can someone please help me with all and can you tell me if my answer are right or not

Answers

1)Surface Area of rectangular box=166
2)Surface area= (9*6)+(9*8)+(10*9)+(6*8)=264 square meters
3)45 square ft
4)288.05 square cm
5)S.A of cylinder = 345.6 sq. cm
6)S.A of cylinder = 603.2 sq. ft
7)S.A of cylinder = 276.5 sq.in
8)S.A of cylinder = 353.4 sq. m
9) slant height = 15 inches

In a factory, an assembly line can manufacture 39 widgets per second. In another factory, 6 widgets are combined to make 1 whoozit. Approximately how many days must the widget assembly line run to produce 3,500,000 whoozits?A.4 days
B.6 days
C.374 days
D.9479 days

Answers

Given:
39 widgets per seconds
6 widgets to make 1 whoozit

3,500,000 whoozits * 6 widgets/whoozits = 21,000,000 widgets
21,000,000 widgets / 39 widgets/sec = 538,461.54 seconds

1 day = 24 hours
1 hour = 60 minutes
1 minutes = 60 seconds
1 hour = 3600 seconds

3,600 seconds * 24 hrs = 86,400 seconds
538,461.54 seconds / 86,400 seconds per day = 6.23 days.

B. 6 days.

You make 72 cookies for a bake sale.this is 20%of the cookies at the bake sale.how many cookies are at the bake sale?

Answers

Hey there!

Here is how you solve the question:

1. Write the question out as a fraction.

$(72)/(20)$

2. Since percent means, 'Out of 100', get 100 as the denominator.

$(72)/(20)$ = $(360)/(100)$

So, the answer is 360 cookies.

(If you feel that my answer has helped you, please consider rating it and giving it a thank you! Also, feel free to choose the best answer, the brainliest answer!)

Thank you for being part of the brainly community! :D

360 cookies total:D

72*5

A carpenter installed 10 windows in 4 hours.another carpenter installed 50 windows in 20 hours. Are the two carpenters working at the same rate?explain

Answers

Yes they are working at the same rate because 4x5=20 and 10 windows every four hours and 5x10= 50 so they are both working at the same rate. Or here is another answer, They are working at the same rate because one was doing 10 windows every four hours and one did 50 windows in 20 hours, so 4 x 5= 20 which is the amount of hours the other carpenter was doing so 5x10 for every four hours, and that equals 50 so they were both working at the same rate. Hope I helped :)

10/4=2.5
50/20=2.5

both carpenters are working at the same speed rate as 2.5=2.5

If arctan(3/5)=K Tan(k)=?

Answers

$arctan(x)=y$

this function is the inverse function of tan...

$arctan(x)=tan^(-1)(x)$

then...

$x=tan(y)$

in this case

$arctan((3)/(5))=K$

$(3)/(5)=tan(K)$

$\boxed{\boxed{tan(K)=(3)/(5)}}$

Answer:

3/5

Step-by-step explanation:

Are the angles with the given measures complementary, supplementary, or neither? m∠J = 63° and m∠K = 27°

Answers

They're complementary.
Complementary angles are a pair of two angles that add up to a sum of 90 degrees
Supplementary angles add up to 180 degrees
63 + 27 = 90

well if the total is 90 so its complementary...

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Answer quick for brainliest <3

12 of the students in the school choir like to sing solos. These 12 students make up 24 percent of the school choir. How many students are in the choir?