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disa [49]
3 years ago
9

Question 7

Mathematics
1 answer:
Natali5045456 [20]3 years ago
4 0
To solve take circumference of the lamp shade( 2pi(r) or pi(d) ) so circumference is 12pi.
Then multiple by hight or altitude to get surface area ( circumference x height)
SA =72pi or ~226.19 in^2

If you are putting material on the top of lamp to, add pi(r)^2 or 36pi= ~113.10 in^2
You might be interested in
What is vertex of this function? Is it a maximum or minimum value.
Orlov [11]
Looking at this we can see that it is (1,3) bud this is a maximum. A maximum is at the top if a function and nothing us higher than it for that graphed image. Then we look at the coordinate and see it is (1,3). There would be no minimum because the function just keeps going! Hope this helps!
6 0
3 years ago
What is the equation of a line that is perpendicular to the line y = 2x + 4 and passes through the point (–2, 3)?
8_murik_8 [283]

Answer:

3=-1/2(-2)+b

solve

3=1+b

2=b

b=2

now that we have the slope and y intercept of the equation construct your equation:

y=-1/2x+2

Neither of these answers are correct. I graphed them all and not a single one passed through (-2, 3)

Additionally, the slopes of B and D are inncorrect and lines A and C dont pass through the point (-2, 3) the only correct  equation is y=-1/2x+2

I graphed it and it was valid

Maybe ask your teacher if there were any mistakes?

Step-by-step explanation:

4 0
3 years ago
1/2a - 4 = 6 try and answer this question
patriot [66]

Answer:

a = 20

Step-by-step explanation:

1/2a - 4 = 6

      +4    +4

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

1/2a = 10

*2        *2

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

1a = 20

/1      /1

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

a = 20<em> -------------------> answer</em>

5 0
2 years ago
Read 2 more answers
Explain how you know 12.6, 3.1, 5.4, greater than 20
USPshnik [31]
<span>Given numbers 12.6, 3.1 and 5.4
=> 12.6
=> 3.1
=> 5.4
These 3 are all smaller than 20.
Explain why is it greater than 20?
Very simple, simply add those given numbers
=> 12. 6 + 3.1 = 15.7
=> 15.7 + 5.4 = 21.1
=> 21.1 > 20 , 20 is less than 21.1
That’s that reason why the given numbers is greater than 20. When you add the 3 numbers, the sum is greater than 20.</span><span>

</span>



6 0
4 years ago
Determine whether f(x) = 4x+5 is injective or not
ozzi
Injective. (x) would have to be used in 2 places which would cross.
6 0
3 years ago
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