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Trava [24]
3 years ago
13

A school needs 75 light bulbs. Bulbs

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
5 0

The answer is about 9 1/2 because of this you should have 10 lightbulbs 10 as your answer

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How does the volume of a cylinder change when its diameter is tripled
cupoosta [38]
V(cylinder)= πr²h
d=2r,
d is diameter, r is radius.
When diameter is tripled, a new diameter D=3d,
new radius R=3d/2=(3*2r)/2=3r
R=3r

V(new cylinder)= πR²h = π(3r)²h=9πr²h

V(new cylinder)/V(cylinder)=9πr²h/πr²h=9

Volume new cylinder 9 times more the volume of old cylinder.




5 0
3 years ago
Read 2 more answers
Solving systems of equations by graphing
Ipatiy [6.2K]

Answer:

Hi! The correct answer is x = -1 y = -1 and the ordered pair is (-1,-1)

Step-by-step explanation:

<em><u>~Solve the first variable in one of the equations, then substitute the result into the other equation~</u></em>

7 0
3 years ago
Is the given value a solution to the equation?
irinina [24]
Yes.
9m-3m=1+19
6m=20
m=20/6=10/3
6 0
2 years ago
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Aveeno and her boyfriend you know who wrote the bus six times in a month it cost $40 for the two of them each time if Avena alwa
MaRussiya [10]

Answer: The cost for the month is $240.

Step-by-step explanation:

Since we have given that

Cost for the two i.e Aveeno and her boyfriend = $40

They were charged 6 times in a month.

As we know that times stands for multiplication.

So, we need to find the cost for the month, where we multiply 6 with $40 to get the amount for the whole month.

So, the amount for the month would be

40\times 6=\$240

Hence, the cost for the month is $240.

4 0
3 years ago
Y= (x-1)^2 + 2 <br><br> change this equation into standard form
BaLLatris [955]

Answer:

x² - 2x + 3

Step-by-step explanation:

y = (x - 1)² + 2

= (x - 1)² + 2 [a - b]² = <em><u>a²- 2ab + b²</u></em>

= x²- 2x + 1 + 2

= x² - 2x + 3

Thus, the standard form of the equation is x² - 2x + 3

8 0
3 years ago
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