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aliina [53]
3 years ago
7

Who know how to do surface area of cylinders? Really need help

Mathematics
1 answer:
DiKsa [7]3 years ago
8 0

Answer:

To find the surface area of a cylinder add the surface area of each end plus the surface area of the side. Each end is a circle so the surface area of each end is π * r2, where r is the radius of the end. There are two ends so their combinded surface area is 2 π * r2.

Step-by-step explanation:

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Help please I don’t know the answer ????
pentagon [3]

To find the answer to a problem like this, we need to look for patterns in the number!

It looks likes x = 2y

Or in other words, (y is being multiplied by 2 to find x!)

**Now that we've discovered this pattern, we can confidently say that ...

<u>the number</u><u> 6</u><u> belongs in</u><u> #1 </u>

5 0
2 years ago
Which of these equations shows the correct relationship between x and y?
Leto [7]
X+y=180
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7 0
2 years ago
A gardening store ordered 1,290 potted plants last year. This year, the store ordered 70% more than that number. How many potted
Genrish500 [490]

Answer:

2,193 plants

Step-by-step explanation:

70% = 70/100 = 0.70

(0.70)(1290) = 903

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3 0
3 years ago
A total of $10,000 is invested in two mutual funds. The first account yields 5% and the second account yields 6%. How much was i
Aleks [24]

Answer:

$2,500 was invested in the first account while $7,500 was invested in the second account

Step-by-step explanation:

Here in this question, we want to find the amount which was invested in each of the accounts, given their individual interest rates and the total amount that was accorded as interest from the two investments

Now, since we do not know the amount invested , we shall be representing them with variables.

Let the amount invested in the first account be $x and the amount invested in the second account be $y

Since the total amount invested is $10,000, this means that the summation of both gives $10,000

Mathematically;

x + y = 10,000 ••••••(i)

now for the $x, we have an interest rate of 5%

This mathematically translates to an interest value of 5/100 * x = 5x/100

For the $y, we have an interest rate of 6% and this mathematically translates to a value of 6/100 * y= 6y/100

The addition of both interests, gives 575

Thus mathematically;

5x/100 + 6y/100 = 575

Multiplying through by 100, we have

5x + 6y = 57500 •••••••••(ii)

From 1, we can have x = 10,000-y

let’s substitute this into equation ii

5(10,000-y) + 6y = 57500

50,000-5y + 6y = 57500

50,000 + y = 57500

y = 57500-50,000

y = 7,500

Recall;

x = 10,000-y

so we have;

x = 10,000-7500 = 2,500

3 0
3 years ago
In describing a dataset, what does the standard deviation or standard error represent?
ivann1987 [24]
A measure of the variation around the estimate of the mean.

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7 0
3 years ago
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