Which expression represents the difference of their lateral area?

Mathematics

1 answer:

zhuklara [117]3 years ago

6 0

D is the answer.
LA of cube is 4(2r.2r) = 16 r^2
LA of cylinder is 2πr x 2r = 4πr^2
16 r^2 - 4πr^2 = 4r^2(4-π)

You might be interested in

If an arithmetic sequence

goblinko [34]

Answer:

a₄ = 12

Step-by-step explanation:

To obtain the terms in the sequence add 2 to the previous term, that is

a₂ = a₁ + 2 = 6 + 2 = 8

a₃ = a₂ + 2 = 8 + 2 = 10

a₄ = a₃ + 2 = 10 + 2 = 12

5 0

2 years ago

5(k+4)-2k simplify the expression

mixas84 [53]

Answer:

3 k + 20

Step-by-step explanation:

7 0

2 years ago

in Yoshi's garden three quarters of the flowers are tulips of the tulips 2/3 of them are yellow what fraction of the flowers in

PtichkaEL [24]

So 3/4 of flowers are tulips
2/3 of tulips are yellow
what fraction are yellowtulips
2/3 of 3/4 are yellow tulips
'of' means mutily
2/3 times 3/4=(2 times 3)/(3 times 4)=6/12=1/2

answer is 1/2

4 0

3 years ago

The equation of the tangent to the curve x^2 = 4y at the point on the curve where x=-2 is?

aleksandrvk [35]

$x^2 = 4y \Rightarrow y= \frac{x^2}{4}$
$\frac{dy}{dx} = \frac{2x}{4} = \frac{x}{2}$

(x = -2) $\frac{dy}{dx} = \frac{x}{2} = \frac{-2}{2} = -1$
(x = -2) $y= \frac{x^2}{4}= \frac{(-2)^2}{4} = 1$

$y-y_1=m(x-x_1)$
$y-1 = -1(x--2)
$
$y-1 = -1(x+2)$
$y-1 = -x-2$
$y=-x-1 = -(x+1)$

7 0

3 years ago

Read 2 more answers

Solve for x. 25 - 3x = -5(1 - x) - 2x

grandymaker [24]

Answer:

$x = 5$