1.
Rosa, Roberto, Andrea, and Inno find an estimate for square root 10. Who has proposed the best solution? (1 point)
Rosa: "Use square root 9 and square root 25 to estimate."
Roberto: "I will use square root 4 and square root 9."
Andrea: "It should be square root 11 and square root 12."
Inno: "Use square root 9 and square root 16 to find the estimate."
2.
Joy knits a square blanket that has an area of 1,500 square inches. What is the approximate length of each side of the blanket? (1 point)
16 inches
27 inches
39 inches
42 inches
3.
An example of an irrational number is _____. (1 point)
negative square root 17
square root 16
negative square root 9
square root 1
4.
Which statement is true? (1 point)
Every real number is an integer.
Every rational number is a real number.
Every rational number is a perfect square.
Every integer is an irrational number.
5.
Which two sqare roots are used to estimate square root 47? (1 point)
square root 25 and square root 36
square root 25 and square root 49
square root 36 and square root 49
square root 49 and square root 64
6.
An estimate for –negative square root 72 is _____. (1 point)
– 8.1
– 8.5
– 9.1
– 9.5
7.
Mason is an architect and is drawing the plans for a room addition for a client. If the shape of the room is a cube, what is the volume in cubic feet if the length is 23 feet? (1 point)
529
1,024
12,167
32,768
8.
The area of a circle is found with the formula A = pi r squared, where pi represents 3.14. If a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet, what is the approximate radius of the circle in feet? (1 point)
10
13
14
17
my answers
1.d
2.c
3.a
4.b
5.c
6.b
7.c
8.c
85 answers
2. Yep
3. Yep
4. Yep
5. Yep
6. Yep
7. Yep
8. Yep
2. 39 inches
3. -√17
4. Every real number is an integer
5. √36 and √49
6. -8.5
7. ??? I don't know yet
8. ??? I don't know yet
7. c
8. c
1. D
2. C
3. A
4. B
5. C
6. B
7. C
8. C
8. B
100% correct
D
C
A
B
C
B
D
B
Which box-and-whisker plot matches the data?
23, 32, 20, 13, 27, 36, 29, 38, 23, 15, 30, 18
A. start fraction 29 over 69 end fraction
B. start fraction 87 over 207 end fraction
C. start fraction 17 over 41 end fraction
D. start fraction 14 over 46 end fraction
10.
A. Rosa: "Use square root 9 and square root 25 to estimate."
B. Roberto: "I will use square root 4 and square root 9."
C. Andrea: "It should be square root 11 and square root 12."
D. Inno: "Use square root 9 and square root 16 to find the estimate."
how about calling it by its real name boku no hero academia
rational --- from ratio --- a: b or a/b
A number which cannot be expressed as a simple fraction in the above form is irrational
irrational --> not rational
(irresponsible -- not responsible)
Any decimal which terminates is rational
any decimal which has a repeat is rational
any decimal which does not show any repeating decimals and which is never-ending is irrational
e.g.
4/7 --- rational
3.454545... rational
2.6789789789... rational
4.56556555655556... irrational
π --- irrational
√5 or any square root of a number which is not a perfect square is irrational
√16 -- rational, but √17 -- irrational
(put in own words so you guys don't get in trouble)
-Bakugou
C
A
B
C
B
D
B
But anyone got the answers to 9 and 10?????
The way that finding the square root is different than finding the cube root is that with the square root, you need to find two numbers that are the same and multiply with that number. To find the cube root, it would be like exponents where instead of finding the answer, you need to find the number your multiplying that many times
Example:
_
3 /
V 64
So you can do the square root as 8x8 so that being 8.
And with the cube root you would do something like 4x4x4 therefore its 4
cube roots are just a number to the power of 3.
for example, the cube root of 27 is 3 because 3x3=9, 9x3=27
hoped this helped dudes, best of luck
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