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umka2103 [35]
2 years ago
14

Find the zeros of y=x^3-x^2-9x+9

Mathematics
1 answer:
notsponge [240]2 years ago
7 0
The zeros are at -3, 1 and 3

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Find the area of the circle in terms of Pi. (TT)<br> 10 cm<br> A
Alinara [238K]

Answer:

A≈314.16

Step-by-step explanation:

7 0
3 years ago
An object is thrown upward from the top of a 192 ft building with an initial velocity of 64 feet
Airida [17]

Answer:

t=6

Step-by-step explanation:

ground height = 0

(are you sure your formula is correct? isn't it - 16t²?)

if h=16t² +64t+192 is true then

16t² +64t+192 = 0

t² + 4t + 12 = 0

t = (-4 ± √(4² - 4*12)) / 2*1 = (-4 ± √-32) / 2 = -2 ± 2√-2

There is no solution of t

if it is h= - 16t² +64t+192

0 =- 16t² + 64t + 192

t² - 4t - 12 = 0

(t + 2) (t -6) = 0

t should be positive

t = 6 sec

7 0
2 years ago
Help me please explain do not need work just explain THANK YOU I NEED HELP
Mnenie [13.5K]
Alright, 

you will need to solve for each variable to find if they got the equation correctly or not.. 

Let's start with h 
isolate h 
(1/2)h = A/(b1+b2)
Now we need to get rid of 1/2 we may do so by multiplying both sides by 2 

h = 2(A/(b1+b2))

And that's not how they did it for h so Option D doesn't apply 


Let's see C
Also doesn't apply since they multiplied 2 only by A rather than A/h

Let's see B
Also not correct they made the same mistake as with option C

Let's see A
again same mistake 
when multiplying both sides by 2 
the 2 should be as following 
2\frac{A}{h}

I believe you should contact your instructor and explain that non of the options is right. 

6 0
2 years ago
4th grade homework.
Oxana [17]
By looking at the statement I derived,

32 = 8 * 4

5 0
3 years ago
Read 2 more answers
Write a recursive rule for the sequence.<br><br> 7, 6, 13, 19, 32, ...
Zinaida [17]

Answer:

Step-by-step explanation:

+7-1

4 0
3 years ago
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