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SSSSS [86.1K]
4 years ago
11

These cylinders are similar. Find the surface area of the smaller cylinder. Round to the nearest tenth.

Mathematics
1 answer:
Ratling [72]4 years ago
6 0

Answer:  

Surface Area = 6.28 x 5.223 x 3 + 6.28 x 10.446 = 164 cm^2

Step-by-step explanation:

A=2πrh+2πr2

When we divide 245 by 1.5 we find 164cm^2

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Tell whether a triangle can have sides with the given lengths explain? Explain. 4,7,10
Evgen [1.6K]
Use the pythagorean theorem. So 4^2 + 7^2 = 10^2. Simplify to 16+49=100. This simplifies to 65=100 which is not true so these sides cannot make a triangle.
4 0
4 years ago
Write in slope-intercept form an equation of the line that passes through the points (−5,−9) and (5,1).
o-na [289]

Answer:

y=x-4

Step-by-step explanation:

The slope is given by

m = (y2-y1)/(x2-x1)

m = (1--9)/(5--5)

m = (1+9)/(5+5)

    = 10/10

   = 1

The slope is 1

We have the slope and a point,so we can use point slope form

y-y1 = m(x-x1)

y-1 = 1(x-5)

y-1 = x-5

Add 1 to each side

y-1+1 = x-5+1

y=x-4

This is slope intercept form (y= mx+b)

3 0
4 years ago
Can somebody plz help draw the spinner with these probabilities on the question like take a pic of how it looks like or explain
DanielleElmas [232]

I will draw a rough figure, you can draw it neatly.

Probability =

Probability = No. of favourable outcomes/ Total no. of outcomes

Probability = No. of favourable outcomes/ Total no. of outcomesTotal number of outcomes = 4

So, here:

P(2) = 2/4 = 1/2

P(1) = 1/4

P(3) = 1/4

P(4) = 0

Here, the probability of getting 2 is ½.

Probability of getting 1 is ¼.

Probability of getting 3 is ¼.

Probability of getting 4 is 0.

6 0
3 years ago
In march 1989 the exxon valdez ran aground and spilled 240,000 barrels of crude petroleum off the coast of alaska. one barrel of
elena-14-01-66 [18.8K]

<span>240,000 barrels contain a total of:

240,000 barrels * 42 gal per barrel = 240,000*42 gal = 10,080,000 gal of petroleum.
------------------------------------------------------------------------------------------------
now we need to convert gallons to Liters. For this we use the conversion:

</span>1 US liquid gallon = 3.78541 Litre, 

-------------------------------------------------------------------------------------------

thus 10,080,000 gal  are 10,080,000*3.78541 Litre = 38,156,932.8 Litre


Answer: 38,156,932.8 Litre
7 0
4 years ago
Lisa and her 17 classmates are donating money to a local charity. Each student will donate $5.25. How much money are Lisa and he
masya89 [10]

Answer:

$94.50

Step-by-step explanation:

Total No. of students = Lisa(1) + 17 classmates = 1+17 = 18

Money donated by 1 student = $5.25

Money donated by 18 Students = 18*5.25 = $94.50

8 0
3 years ago
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