Answer:
x + 90 = 120
Step-by-step explanation:
the marked angles are vertically opposite angles and are congruent , then
4x = x + 90 ( subtract x from both sides )
3x = 90 ( divide both sides by 3 )
x = 30
then
x + 90 = 30 + 90 = 120
Quotient of a number and 7 = 7N
Reciprocal = 1/7N
(6)(1/7N) = 6/7N
Answer:
Correct volume = 100.48 cm³
Step-by-step explanation:
The formula for finding the volume of a cone is:
V = πr²(h/3)
r - Radius
h - Height
V - Volume
To find the correct volume of the cone, we just need to input the measurements into their respective places in the formula and solve. Your work should look similar to the following:
V = πr²(h/3)
V = π(4)²(6/3)
V = π(16)(6/3)
V = π(16)(2)
V = π(32)
V = 100.48 cm³
(You can use the work shown above to find Joan's mistake in her work.)
~Hope this Helps!~
27 : 3 = 9
32 :4 =8 (patrimea)
9+8 = 17
The side length is 12 - -3 = 15 so the area is 15 squared = 225.
