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Naily [24]
3 years ago
9

How do you solve x^4-16x^2-720=0

Mathematics
1 answer:
kirill115 [55]3 years ago
7 0

Answer:x

=

6

,

−

6

,

2

i

√

5

,

−

2

i

√

5

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F(x)=-8x+4 then f^-1(x)= PLEASE HELP!!!
lakkis [162]
F^-1(x)= (x-4)/-8 because it's just finding the inverse function
6 0
3 years ago
Alice drives to Alabama at a rate of 60pmh. She drives home at a rate of 40mph. If the total trip takes her 5 hours, how long do
jonny [76]
OK, so she definitely drove home faster than when she drove to her first destination. So she must've taken quicker to get home. Lets assume 3 hours on the way there and 2 hours on the way back.
I really hoped this helped. I'm no genius, but you asked for help and I tried to give it.
Have a great day.
6 0
3 years ago
What should be done so that the expression will have a value of 10?<br><br> 12 - 2 + 2 2 ÷ 8
Liula [17]
Answer: 10
use (PEMDAS)
P parentheses ()
E exponents
M multiplication • , () , x
D division
A addition +
S subtraction -
Explanation:
There are no parentheses.
There are exponents.
The multiplication is the exponents.
There is division.
There is addition and subtraction.
-how to solve-
First, do 2 to the second power and get 4.
Next, do 12-2+4 divided by 8.
Next do multiplication: there’s no more.
Next do division: you can’t do 4 divided by 8 so instead, do 12-2 = 10 plus 8.
Hope this helps!
3 0
2 years ago
What is the product of 14,560 x 10? We have to explain how we decided on the number of zeros in the products.
Vinvika [58]
If we multiply 14,560 with 10 we will get <em>145,600</em>.
We have 10 in question we will add 1 zero in the product. the number of zeros we have on multiplicating side the number of zeros we will add in the product.
Example- 14,560 * 1000 = 14,560,000.


7 0
3 years ago
Read 2 more answers
Tina is 4 times older than Hanna. The sum of their ages is 40. How old is Hanna?
Ksenya-84 [330]

Answer:

<u>Hanna is 8 years old.</u>

Step-by-step explanation:

Hanna = x

Tina = 4x

Sum = 40.

Hanna =?

Hanna + Tina = 40

4x + x = 40

5x = 40

x = 40/5

x = <u>8</u>.

Hanna is <u>8 years</u> old.

5 0
3 years ago
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