Answer:
a. π(9^2)(9) - (1/3)(9^2)(9)
step-by-step explanation:
we assume that container a is the whole cylinder, and that container b is the cylinder with the cone carved out.
the formula for the volume of a cylinder is
vcyl = πr²h
the formula for the volume of a cone is
vcon = (1/3)πr²h
here, we have r=h=9 in both cases, and we want to find the difference of volumes. filling in the numbers gives
vcyl - vcon = π(9²)(9) - (1/3)(9²)(9) . . . matches choice a
comment on notation
exponents rarely get copied properly from other applications to brainly, so some editing may be required. if you don't use the equation editor or special mathematical symbols, the plain-text form for an exponent is
(base)^(exponent) . . . the exponent is signified by a caret (^)
note that grouping symbols may be required. if the exponent has an arithmetic operation in it, then it needs parentheses:
√(x) = x^(1/2)
(x^a)(x^b) = x^(a+b)
the use of the word "over" to signify a fraction is unnecessary and ambiguous. the forward slash (/) is usually used for that purpose. as with the caret, any numerator or denominator consisting of more than a single number or letter needs parentheses: (1/a) + (1/b) = (a+b)/(ab). even if you know that the denominator is a single number, as in 1/3, it understanding to put the fraction in parentheses so the appropriate interpretation is clear. (see above for examples. many people write 1/x+1 when they mean 1/(x+1), so if you mean (1/x)+1, it is to write it that way--even though that is how it should be interpreted.)
Answer:
65 is the answer.. I used a average calculator https://www.omnicalculator.com/math/average
Use sin to calculate. Sin30=5/x. Sin=opposite/hypotenuse. Cross multiply. Sin30x=5. x=5/sin30. x=10.
Changes made to your input should not affect the solution:
(1): "x1" was replaced by "x^1". 3 more similar replacement(s).
Step by step solution :
Step 1 :
Equation at the end of step 1 :
x + ((((3•19x2) • x6) • x8) • x12)
Step 2 :
Step 3 :
Pulling out like terms :
3.1 Pull out like factors :
57x28 + x = x • (57x27 + 1)
Trying to factor as a Sum of Cubes :
3.2 Factoring: 57x27 + 1
Theory : A sum of two perfect cubes, a3 + b3 can be factored into :
(a+b) • (a2-ab+b2)
Proof : (a+b) • (a2-ab+b2) =
a3-a2b+ab2+ba2-b2a+b3 =
a3+(a2b-ba2)+(ab2-b2a)+b3=
a3+0+0+b3=
a3+b3
Check : 57 is not a cube !!
Final result :
x • (57x27 + 1)
Processing ends successfully
Answer:
D
Step-by-step explanation:
The answer is D because when you add together the three sides of a triangle the answer is 180 degrees.
