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2 years ago

What is the greatest common factor (GCF) of 54 and 45?

Mathematics

2 answers:

ira [324]2 years ago

8 0

9 cause that how I learned it

lawyer [7]2 years ago

6 0

Answer:

Step-by-step explanation:

BECAUSE 54 : 2,3,9. and 45 : 5,9. so the greatest common factor is 9

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your friend says that the volume of a sphere with a radius r is four times the volume of a cone with radius r. when is this true

Ierofanga [76]

Volume of a sphere is given by the formula: $V_{\circ}=\frac43\pi r^3$

If we pull the 4 out front we have, $V_{\circ}=4\left(\frac13\pi r^3\right)$ .

Volume of a cone is given by the formula: $V_{\triangle}=\frac{1}{3}\pi r^2\cdot h$

Notice that if the height of the cone is equal to the radius, $V_{\triangle}=\frac13\pi r^2\cdot r$

then it's exactly what we see in our volume formula without the 4!

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2 years ago

Brandon solved 24 math problems in 8 minutes, and Marcus solved 18 math problems in 9 minutes. Who solved more problems per minu

Delicious77 [7]

Answer

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Step-by-step explanation:

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3 years ago

Find the area of the shaded region.<br>pls do this with explanation.<br>

vladimir1956 [14]

Answer:

first find the area of the big rectangle = 12×14=168

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area of the shaded region = 168-60=108

6 0

2 years ago

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if the data in the table were entered into a regression calculator to produce a scatter plot and trend line which window size wo

NeTakaya

The second one because it allows for all the points to be presented

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3 years ago

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when you reverse the digits in a certain two-diget number you increase it value by 27. What is the number if the sum of its digi

Fynjy0 [20]

The number is = 10x+y
if reverse the digits, the number is: 10y+x
The sum fo its digits is = x+y=5
I suggest this system of equations:
(10y+x)-(10x+y)=27 ⇒9y-9x=27
x+y=5
We can solve this system of equations by equaliztion method
x=5-y

9y-9(5-y)=27
9y-45+9y=27
18y=27+45
18y=72
y=72/18
y=4

x=5-y
x=5-4=1

The number is: 10x+y=10(1)+4=14

Answer: the number is 14

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2 years ago

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