9514 1404 393
Answer:
A, B, C, E, D
F, G, H, I, J
Step-by-step explanation:
You can go at this a couple of ways.
Consider the squares of number 1 through 9.
![\begin{array}{cccccccccc}n&1&2&3&4&5&6&7&8&9\\n^2&1&4&9&16&25&36&49&64&81\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Bcccccccccc%7Dn%261%262%263%264%265%266%267%268%269%5C%5Cn%5E2%261%264%269%2616%2625%2636%2649%2664%2681%5Cend%7Barray%7D)
Then when the number under the radical is close to n², the root on the number line will be close to n.
The other way you can do this is to find the square root using your calculator.
- √10 ≈ 3.2 ⇒ A
- √35 ≈ 5.9 ⇒ B
- √48 ≈ 6.9 ⇒ C
- √71 ≈ 8.4 ⇒ E
- √54 ≈ 7.3 ⇒ D
- √19 ≈ 4.4 ⇒ F
- √89 ≈ 9.4 ⇒ G
- √6 ≈ 2.4 ⇒ H
- -√20 ≈ -4.5 ⇒ I
- -√2 ≈ -1.4 ⇒ J
So,
This is how I mentally do it.
Convert 1 1/3 miles to decimal form.
1 1/3 --> 1.3333333...
Since that is 1/10 of the desired rate, we simply move the decimal place one place to the right.
1.333333... --> 13.3333333...
Convert to fraction form.
13 1/3 mph
Lauren bikes 13 1/3 miles per hour.
Answer:
x = -6, y = 12
Step-by-step explanation:
Equations:
y = 2x + 24
y = -2x
Bring the the equation together and add like terms together:
-2x = 2x + 24
-4x = 24
Divide both sides by -4 to isolate x:
![\frac{-4x}{-4} = \frac{24}{-4} \\\\x = -6](https://tex.z-dn.net/?f=%5Cfrac%7B-4x%7D%7B-4%7D%20%20%3D%20%5Cfrac%7B24%7D%7B-4%7D%20%5C%5C%5C%5Cx%20%3D%20-6)
Find y:
y = -2(-6)
y = 12
Verify:
12 =2(-6) + 12
______________
Don't forget to ask if you have any questions :D
Answer:
C
Step-by-step explanation:
0.08 multiplied by 10 is 0.8.
I am so sorry, i wish i could help but the picture is not loading