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4 years ago

The questions are in the pic the other answer is 356

Mathematics

1 answer:

Andru [333]4 years ago

4 0

The answer to this question is 356

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What the answer question now

RUDIKE [14]

Step-by-step explanation:

Here,

radius (r)= 2cm

height(h)=5cm

now,

according to the question we must find the surface area of cylinder so,

by formulae ,

a= 2.pi.r(r+h)

now, 

a= 2×3.14×2(2+5)

by simplifying it we get, 

The surface area of cylinder is 87.92 cm^2.

Hope it helps 

6 0

4 years ago

A circle with center c(4,-2) contains the point D( 8,1). What is the equation of the line perpendicular to the radius of the cir

Nady [450]

Answer:

4x +3y = 10

Step-by-step explanation:

The radius CD has slope Δy/Δx = (1-(-2))/(8-4) = 3/4.

The equation for the perpendicular line through point C(4, -2) can be written as ...

Δx(x -4) +Δy(y -(-2)) = 0

4(x -4) +3(y +2) = 0

4x +3y -10 = 0 . . . . . . general form equation for the line

4x +3y = 10 . . . . . . . . .standard form equation for the line

8 0

3 years ago

82 is 90% of what number?

chubhunter [2.5K]

You need to do like this:
$\frac{no.}{100} = \frac{is}{of}$
Plug the numbers into the formula:
$\frac{82}{100} = \frac{90}{?}$ because they said is 90 and of what?
Multiply diagnally: 100 × 90 = 9000 ÷ 82 ≈ 109.76
i don't really sure it was completly correct but hoped it helps:)

8 0

4 years ago

Help me please and pls explain how you got your answer.

enyata [817]

$l \parallel m\Rightarrow m\angle2 =m\angle6 = 102°\\ m\angle1 + m\angle2 = 180°\Leftrightarrow m\angle1 = 180° - m\angle2 = 180° - 102° = 78°$

3 0

4 years ago

Estimate the length of one side of a square floor if the area is 320 square feet. Round to the nearest whole number.

igomit [66]

So if the area of a square is 320 square meters, then because all four sides are equal, you would end up with the equation $x^{2}=320$ which simplifies to

5 0

3 years ago