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user100 [1]
3 years ago
12

Of the following, which is the solution to 2x^2-5x=-8

Mathematics
1 answer:
Wittaler [7]3 years ago
6 0

the answer is B these are the steps of getting your answer

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To find 5, Beau found 22 = 4 and 32 = 9. He said that since 5 is between 4 and 9, 5 is between 2 and 3. Beau thinks a good estim
shusha [124]

Complete question

To find \sqrt{5} , Beau found 2^2 = 4 and 3^2 = 9 . He said that since 5 is between 4 and 9, \sqrt{5}, is between 2 and 3. Beau thinks a good estimate for \sqrt{5} , is \frac{2 + 3}{2} =  2.5 Is his estimate high or low? How do you know?

Answer:

The estimation is high because 5 is very close to 4 so \sqrt{5} will also be very close to \sqrt{4} which is lower than the estimate

In order to get a good estimate

The first step is to choose a number between 2 and 3 let say 2.8 , 2,85 , 2.9 and the square them

i.e

2.1^2 =  4.41

     2.2^2 =  4.84

      2.3^2 =  5.29

From here we can see that \sqrt{5}  lies between 2.2 and 2.3 but is closer to  2.2

So a good estimate for \sqrt{5} is 2.2

Step-by-step explanation:

8 0
3 years ago
5 • 10^5 is how many times as large as 1 • 10^5​
damaskus [11]

Answer:

5 times larger

Step-by-step explanation:

5*10^5 = 500,000

1*10^5 = 100,000

500,000/100,000 = 5

3 0
3 years ago
Helllp im doing my exam !
Tcecarenko [31]

log x ( 5 × 12 ) = 7

x^7 = 60

..................................

7 0
3 years ago
Is 0.06 greater than 0.0582
Art [367]

Yes, 0.06 is greater than 0.0582.

If we look at the hundreths place, we can see 6 and 5. 6 is greater than 5 which proves that 0.06 is greater.

Best of Luck!

5 0
3 years ago
Can you please help me I need help
DaniilM [7]
I think its C. 7x3 = 21. 7x18 = 126. 9x7 = 63
If you all that the answer its 210. If you estimate what that little part above the farthest to the right shape, I'd say its near 18 to 21. Then add 210 with either numbers 18 through 21, it would be close to 227 square meters.
3 0
3 years ago
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