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2 years ago

Find the total surface area

Mathematics

2 answers:

zepelin [54]2 years ago

5 0

Answer:

108 cm

Step-by-step explanation:

108 cm 3x3x6x2 = 108 cm is how you find area.

Paha777 [63]2 years ago

3 0

Answer:

72 i believe

Step-by-step explanation:

The area of the very top and very bottom small squares are both 6

6 + 6 = 12

the area of the big square in the middle is 18

12 + 18 = 30

the area of the two rectanges are both 12

12 + 12 = 24

30 + 24 = 54

the area of the last square is 18

54 + 18 is is 72

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A recipe calls for 4 apples to serve 6 people. If Jack is planning to serve a crowd of 33 people, how many apples should he use?

KIM [24]

Answer:

22 apples

Step-by-step explanation:

33/6=5.5*4=22

Pls give brainliest

7 0

1 year ago

Read 2 more answers

Paint is red : blue in a ratio 2 : 4 if 5 litres is used how much blue

aleksandr82 [10.1K]

2:4
basically you are doubling the ration because it is 2:4

5:10

3 0

4 years ago

Evaluate the spherical coordinate integral

expeople1 [14]

Rewrite the equations of the given boundary lines:

y = -x + 1 ==> x + y = 1

y = -x + 4 ==> x + y = 4

y = 2x + 2 ==> -2x + y = 2

y = 2x + 5 ==> -2x + y = 5

This tells us the parallelogram in the x-y plane corresponds to the rectangle in the u-v plane with 1 ≤ u ≤ 4 and 2 ≤ v ≤ 5.

Compute the Jacobian determinant for this change of coordinates:

$J=\begin{bmatrix}\frac{\partial u}{\partial x}&\frac{\partial u}{\partial y}\\\frac{\partial v}{\partial x}&\frac{\partial v}{\partial y}\end{bmatrix}=\begin{bmatrix}1&1\\-2&1\end{bmatrix}\implies|\det J|=3$

Rewrite the integrand:

$-3x+4y=-3\cdot\dfrac{u-v}3+4\cdot\dfrac{2u+v}3=\dfrac{5u+7v}3$

The integral is then

$\displaystyle\iint_R(-3x+4y)\,\mathrm dx\,\mathrm dy=3\iint_{R'}\frac{5u+7v}3\,\mathrm du\,\mathrm dv=\int_2^5\int_1^45u+7v\,\mathrm du\,\mathrm dv=\boxed{333}$

5 0

4 years ago

A large washer has an outer radius of 10mm and a hole with a diameter of 14mm. What is the area of the washer? (Use π =3.14)

padilas [110]

Answer:

160.14 mm^2

Step-by-step explanation:

Area of a circle = pi r^2

subtract the area of the smaller circle from the larger

note that the smaller radius = 7 mm

pi ( 10^2 - 7^2 ) =

3.14 ( 51) = 160.14 mm^2

7 0

2 years ago

I'm just helping you guys out. 8÷2(2+2)=16

aleksandr82 [10.1K]

Answer:

Where is the question that you want answred?

7 0

4 years ago