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Mathematics

2 answers:

Serjik [45]2 years ago

5 0

Answer:

318

Step-by-step explanation:

A=2(wl+hl+hw)=2·(9·3+11·3+11·9)=318

cupoosta [38]2 years ago

4 0

Answer:

318

Step-by-step explanation:

318 is the required answer

I hope it helped you

So given Figure we need to find total surface area

=Area(ABCD)+Area(BCRQ)+Area(QRSP)+Area(ADSP)+Area(ABQP)+Area(DCRS)

=(AB×BC)+(BC×CR)+(QR×RS)+(AD×DS)+(AB×BQ)+(DC×CR)

From figure,

AB=DC=PQ=SR=9 cm

BQ=CR=AP=DS=11 cm

BC=AD=QR=SP=3 cm

On substituting these values We get

Surface Area=(9×3)+(3×11)+(9×3)+(11×3)+(9×11)+(9×11)

=27+33+27+33+99+99=318

I hope it helped you

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Give the slope and y intercept 6x-3y=-9

Nikolay [14]

To find the slope and the y-intercept of this equation, we need to first convert it to slope-intercept form. (y = mx + b)

To convert it, we need to first isolate the y term by subtracting 6x from both sides of the equation.

6x - 6x - 3y = -9 - 6x

-3y = -9 - 6x

Now that the y term is on one side of the equation, we can continue.

Divide everything on the left side of the equation by the coefficient on the right side of the equation. In this case, the number is 3.

y = -3 - 2x

Flip some of those numbers around to get this:

y = 2x - -3

Get rid of the double negative. (Change 2x - -3 into 2x + 3)

y = 2x + 3

Now that we've converted the equation, we can identify the slope (the number beside x) and y-intercept (the number that stands alone)

Slope: 2
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4 years ago

Find the volume of a cylinder with a diameter of 8 inches and a height that is three times the radius. Use 3.14 for pi and round

diamong [38]

Volume=height times area of base
area of base=pi times r^2

volume=(h)(pi)(r^2)

diameter=2r
diameger=8
8=2r
divide 2
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h=3r
r=4
h=3(4)
h=12

r=4
h=12
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3 years ago

(2,-4) is reflected across the x-axis. what are the coordinates of its image?

masha68 [24]

Answer:

(2, 4)

Step-by-step explanation:

When you reflect/flip over an axis, negate value of the opposite of it. Fox the X axis, negate the y value.

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What the answer to this equation X/8+4=5 ?