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dybincka [34]
3 years ago
13

Find the surface area of the figure below. Leave answer in terms of π.

Mathematics
2 answers:
Artyom0805 [142]3 years ago
8 0
The answer is D, 1000pi
Use SA=2πrh+2πr^2. 
Plug in the numbers A=2π*10*40+2*π*10^2. 
and you get <span>3141.59.
divide by Pi and you get 1000</span>
devlian [24]3 years ago
6 0
Cylinder:
2Pi *r*h + Pi*r^2 = 2Pi*10*40 + 10^2 *Pi
= 800Pi + 100Pi = 900Pi
Cone:
Height = SQRT(26^2 - 10^2) = 24
=2Pi*r*h/3 = 160Pi
Total Surface Area is 1060Pi
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Can someone please solve this problem for me?
statuscvo [17]

Answer:

5 and 7.

Step-by-step explanation:

Hey! So to start you need to create an algebraic expression. You can express this problem through the following equation:

*Note: if x is an odd integer, x + 2 is the next consecutive odd integer.

x *(x+2)=35

Expanding, you get:

x^{2}+2x = 35.

And moving the 35 to the other side, you get a simple quadratic.

x^{2}+2x -35 =0.

Solving by factoring:

(x+7)(x-5)

This means two possible solutions for the smaller consecutive number are -7 and 5. However the question asks for two positive odd integers, so one of the numbers must be 5. The next will be 7(as its x + 2).

5 0
3 years ago
Mattias bought a package of 5 notebook for $ 13.95. what is the unit price per notebook
Over [174]
Price per notebook=price/notebook
notebooks=5
price=13.95
prece per notebook=13.95 per 5=13.95/5=2.79
answer is $2.79 per notebook
4 0
3 years ago
Read 2 more answers
polly the carrot has learned to say "polly wants a cracker." if she says it every five minutes for two hours and gets a cracker
schepotkina [342]

Answer:

24

Step-by-step explanation:

(60 × 2 ) ÷ 5 = 24.

60 because hour is 60 minutes

× 2 because she says it for 2 hours

÷ 5 because she says it every 5 minutes

3 0
3 years ago
5.2 x 10^3 + 7 x10^4 =__ x 10_ Write your final answer in scientific notation
andreev551 [17]

The scientific notation of the given number is 7.2×10^{4} .

<h3>How do you find scientific notation?</h3>

A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8.

Given that,

2×10^{3}+7×10^{4}

Taking the common power of 10.

= 10^{3}× (2+70)

= 72× 10^{3}

In scientific notation,

Multiply and divide by 10.

7.2× 10^{4}

Hence, The scientific notation of the given number is 7.2×10^{4} .

To learn more about scientific notation from the given link:

brainly.com/question/27862246

#SPJ10

5 0
1 year ago
I dont know how to set up this problem. I need help.
Anuta_ua [19.1K]

Answer:

(4)

Step-by-step explanation:

it said that thier old house cost 10,000

thier new house is more than 2 times what thay paid for thier old house

so answer 4 must be it because 3700 is in that number

6 0
3 years ago
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