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erik [133]
3 years ago
15

Which problem can be solved using the equation shown? 2.50x-2.00=10.50

Mathematics
2 answers:
Natalka [10]3 years ago
5 0

Answer:

a

Step-by-step explanation:

i did th test on edg

Leni [432]3 years ago
4 0

Answer:

The correct answer is a. Will bought several books that cost $2.50 each and received a $2.00 discount on his total bill. If he paid $10.50, how many books did he buy?

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Y(1 - 2x) + xy²(I - 2x)²​
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2 years ago
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Which numbers are solutions of x2+20=9x+2?<br> Choose exactly 2 awnsers.<br> 2<br> 3<br> 5<br> 6
Dahasolnce [82]

Answer:

my answer is gonna be 2 and 5

7 0
2 years ago
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Is (3,5) a solution of y&gt;x-3?
Advocard [28]

Answer:

no it's not

Step-by-step explanation:

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2 years ago
Mrs. Walker is tracking the odometer readings on her car for one week to see how much she uses her car for work and how much for
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5 0
3 years ago
What size does the radius of a sphere need to be for its volume to be larger than its surface area? HINT! It is less than 10. HI
Lera25 [3.4K]
We know that
volume of a sphere=(4/3)*pi*r³----> (r/3)*(4*pi*r²)
and
surface area of sphere=4*pi*r²
so
the volume of a sphere=(r/3)*surface area of sphere
therefore
if r=3
volume of a sphere=(3/3)*surface area of sphere
volume of a sphere=surface area of sphere

if r> 3
the term (r/3) is > 0
so
volume of a sphere > surface area of sphere

if r<3
the term (r/3) is < 0
so
volume of a sphere < surface area of sphere

examples
1) for radius r=3 units
volume of a sphere=(4/3)*pi*3³----> 113.04 unit³
surface area=4*pi*3²----> 113.04 units²
volume is equal to surface area

2) for radius r=10 units
volume of a sphere=(4/3)*pi*10³----> 4186.67 unit³
surface area=4*pi*10²----> 1256 units²
volume is > surface area

3) for radius r=2 units
volume of a sphere=(4/3)*pi*2³----> 33.49 unit³
surface area=4*pi*2²----> 50.24 units²
volume is <  surface area
7 0
3 years ago
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