Answer:
Mikayla moved the decimal incorrectly.
Step-by-step explanation:
mikayla evaluated the expression 0.86 × 23.4 using the steps shown below.
0.86
× 23.4
344
2580
+ 17200
= 201.24
LEts do the multiplication without decimals
8 6
x 2 3 4
--------------------
3 4 4
2 5 8 0
1 7 2 0 0
------------------------------
2 0 1 2 4
0.86 has two numbers after the decimal point and 23.4 has one number after the decimal point
So we move 3 places to the left ( 20.124)
Mikayla moved the decimal incorrectly.
Answer:
24 Bricks.
Step-by-step explanation:
We know the radius is 6 feet and that the diameter is twice that.
We also know the radius is 12 'bricks' in length.
If we divide both numbers by 12, we get that 1 'brick' is half a foot.
Since that's the radius and we want the diameter, we multiply the radius by 2 to get the diameter.
This results in 12 feet, or 24 'bricks'.
Complementary angles are angles whose sum is equal to 90°.
m∠1 = 5x + 4
m∠2 = 7x + 2
m∠1 + m∠2 = 90°.
5x + 4 + 7x + 2 = 90
12x + 6 = 90
12x = 90 - 6
12x = 84
12x / 12 = 84/12
x = 7 Choice B.
m∠1 = 5x + 4 = 5(7) + 4 = 35 + 4 = 39
m∠2 = 7x + 2 = 7(7) + 2 = 49 + 2 = 51
39 + 51 = 90
90 =90
Answer:
radius^2 = 3 * Volume / (PI * height)
radius^2 = 3 * (142 cc / 3.14159265 * 8.5)
radius^2 = 3 * (142 cc / 26.703537525
)
radius^2 = 15.9529425493
radius = 4.0 cm
Step-by-step explanation:
