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Hatshy [7]
3 years ago
11

Find the roots of each equation by factoring

Mathematics
1 answer:
Korolek [52]3 years ago
7 0

Answer:

x=7 x=-7

Step-by-step explanation:

Solution is attached.

You might be interested in
What strategy can be used to solve 8 x 25 x 23
wariber [46]
The best way to multiply complicated problems mentally* is to break them into chunks.

Start with 20 times 8 to get 160, and then 8 times 5 to get 40. Add these together to get 200. 200 times 3 is 600, and 20 times 200 is 4000. Add these together to get your final answer, 4600. 

In other words 8 x 20 + 8 x 5 = 200  200 x 3 + 200 x 20 = 4600

*I assumed you meant mentally, because otherwise you'd just multiply longhand, multiplying two of the three numbers and then multiplying their product with the third. 
7 0
3 years ago
Hi what is the four time pi?
Minchanka [31]

Answer:

<h2>12.5663706144 or just 12.57.</h2>

Step-by-step explanation:

4 x pi = 12.57

<h3>Estimate </h3>

Pi is approx. equal to 3.14

4 x 3 = 12

8 0
4 years ago
Tính: <br> (1/27)^2016*27^2015
Alik [6]

Answer:

1/27

Step-by-step explanation:

(1/27)^2016*27^2015 =

27^-2016 * 27^2015 =

27^(-2016+2015) =

27^-1 =

1/27

6 0
3 years ago
Write the follow ratio is lowest terms, 49:21
Alik [6]
Looking at 49 and 21, you immediately know that 7 can be divided out of both.

49:21
=49/7:21/7
=7:3

7:3 is the answer.

Hope this helps!

5 0
3 years ago
Read 2 more answers
A bag contains 10 red marbles, 7 green marbles. and 8 striped marbles. A marble is picked, then put back into bag. Find P(green
SIZIF [17.4K]

G = number of green = 7

S = number of striped = 8

T = number total = 10+7+8 = 25

probability of picking green = P(G) = G/T = 7/25

probability of picking striped = P(S) = S/T = 8/25

P(green and striped) = P(G)*P(S)  ... events are independent

P(green and striped) = (7/25)*(8/25)

P(green and striped) = (7*8)/(25*25)

P(green and striped) = 56/625

P(green and striped) = 0.0896

--------------------------------

In summary, the answer as a fraction is 56/625

In decimal form, the answer is 0.0896

The value 0.0896 can be converted to percent form to get 8.96%

8 0
3 years ago
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