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photoshop1234 [79]
3 years ago
5

Find the best approximation of the surface area of this cylinder.

Mathematics
1 answer:
olga2289 [7]3 years ago
8 0
The main formula is A= 2pi r (H + r)
H= 9, and r= 11
so A= 2 *3.14*11* (9 + 11) = 1381.6 cm²
so the answer is  <span>1380 cm2</span>
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2x2 +5x+8<br> Given x 3-2, the expression<br> x+2.<br> is equivalent to
Masteriza [31]

Answer:

x=-1

Step-by-step explanation:

so 3-2 is 1 right so what humber + 2 is 1 well -1 becasue -1 + 1 is 0 and plus 2 would be 1 so its -1 (or x= -1). Hope this helped!

6 0
3 years ago
I’m about to cry from frustration. Help please before I die
kvv77 [185]

Answer:

\frac{1}{3}x+16=37

63 Jelly Beans

Step-by-step explanation:

The unknown is the number of jelly beans originally in the bag or x

First he had x jelly beans

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\frac{1}{3}x

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\frac{1}{3}x+16

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This is the equation

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63 Jelly Beans

7 0
3 years ago
Read 2 more answers
The rate of change of the function f(x) = 8 sec(x) + 8 cos(x) is given by the expression 8 sec(x) tan(x) − 8 sin(x). Show that t
liq [111]

Answer:

Shown - See explanation

Step-by-step explanation:

Solution:-

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- The form we need to show:

                              8 sin(x) tan2(x)

- We will first use reciprocal identities:

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- Now take LCM:

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- Using pythagorean identity , sin^2(x) + cos^2(x) = 1:

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- Again use pythagorean identity tan(x) = sin(x) / cos(x):

                            8*sin(x)*tan^2(x)

8 0
3 years ago
Read 2 more answers
What is .25 when written in simplest form
seropon [69]
So 0.25 is essentially 25/100. Divide 25 from the top and bottom to get 1/4
7 0
3 years ago
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Chandler Heisinger buys a monthly metro card, which entitles him to unlimited subway travel in New York City, for $81 per month.
ANTONII [103]
Let r be the number of rides Chandler takes in a month. Then the cost with the MetroCard is still $81, but the cost without the MetroCard is 2r. So we can set up an equation representing what we want: "The cost with a MetroCard of r rides in a month is less than the cost without a MetroCard." In equations,
81\ \textless \ 2r \\ r\ \textgreater \ 81/2\ \textgreater \ 40 \\&#10;r \geq 41
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7 0
4 years ago
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