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joja [24]
3 years ago
12

What is the total surface area of the following cylinder?

Mathematics
1 answer:
lilavasa [31]3 years ago
6 0

Answer: 791.28cm^2

Step-by-step explanation:

A=2\pi rh+2\pi r^2

We have the diameter, to calculate the radius, divide by 2.

12/2=6cm

height: 15cm

Plug in the formula.

A=2(3.14)(6cm)(15cm)+2(3.14)(6cm)^2\\A=565.20cm^2+226.08cm^2\\A=791.28cm^2

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What are the values of h and x in the right triangle? Explain.
alexandr402 [8]

Answer:

h = 60 ; x = 25

Step-by-step explanation:

You are going to want to use Pythagorean Theorem to solve these.

Pythagorean Theorem: a² + b² = c²

h² + 144² = 156²

h² + 20736 = 24336

h² = 3600

h = 60

x² + 60² = 65²

x² + 3600 = 4225

x² = 625

x = 25

3 0
3 years ago
The product of two consecutive integers is 342. What quadratic equation can be used to find x, the grater number?
IceJOKER [234]
X (X - 1) = 342
x² - x = 342
x² - x - 342 = 0

X = 19
5 0
3 years ago
What is the equation of the line passing through the points (3,6) and (2,10)
andrezito [222]

Answer: y= - 4x+18

Step-by-step explanation:

Equation: y=mx+b

***remember: b is the y-intercept and m is the slope.

m=\frac{y2-y1}{x2-x1}

3= x1

2= x2

6= y1

10=y2

m=\frac{10-6}{2-3}= \frac{4}{1}= -4

m=-4

Now we have y=-4x+b , so let's find b.

You can use either (x,y) such as (3,6) or (2,10) point you want..the answer will be the same:

   (3,6). y=mx+b or 6=-4 × 3+b, or solving for b: b=6-(-4)(3). b=18.

   (2,10). y=mx+b or 10=-4 × 2+b, or solving for b: b=10-(-4)(2). b=18.

Equation of the line: y=-4x+18

3 0
3 years ago
kristen brought 2 candy bars for 1.29 each and a soda for 1.99 .she had to pay 0.38 in tax how much was her bill
Nadusha1986 [10]
The bill was $4.95 for the things they bought.
3 0
3 years ago
Read 2 more answers
If someone helps me with dis ill give u brainliest​
jolli1 [7]

Answer:

4 different answers

Step-by-step explanation:

1.

[(24/3) + (5*2^2)] = 28

2.

[(3 + 5) * 2^2 )]/24 = 32/24 = 4/3

3.

[(24/3 + 5)*2^2] = 52

4.

[(3 + 5*2^2)/24] = 23/24

5 0
3 years ago
Read 2 more answers
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