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ahrayia [7]
3 years ago
11

Find the GCF OF 21 and 40

Mathematics
1 answer:
aniked [119]3 years ago
7 0
The Greates Common Factor (GCF) is: 1
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you should get the awenser 8

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3 years ago
Omials<br> GCF of 96x5 and 64x2?
Agata [3.3K]
32
the greatest common factor of 480 and 128 is 32
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3 years ago
Prove that the figure is a parallelogram. If so, classify the parallelogram. Be specific and justify your answer.
sesenic [268]

Answer:

Step-by-step explanation:

If it is a parallelogram the opposite sides will a have the same slope.

Using the diagram  we see from the coordinates of A and B:

Slope of AB = (5 - -1)/(-1 - -5)

= 6/4

= 3/2.

In the same way

slope of CD = (2 - -4) / (1 - -3)

= 3/2.

So AB and  CD can be shown to be parallel.

Similarly the lines BC and AD are parallel.

So the figure is a parallelogram

Finding the perimeter (counting the units between the points):

Perimeter = 2AB + 2BC

By Pythagoras:

AB =   sqrt (6^2 + 4^2) = sqrt 52

BC = sqrt (3^2 + 2^2) = sqrt 13

So Perimeter = 2sqrt52 + 2sqrt13

= 4sqrt13 + 2 sqrt13

= 6sqrt13

or 21.63 unit^2 to 2 decimal places.

Area = sqrt52 * perpendicular distance between the lines AB and CD.

8 0
3 years ago
Solve the one step inequality
drek231 [11]
Subtract -3-5 use Keep Change-Change
 keep -3
 change the - into a +
change 5 into -5
so... -3 + -5 is -8
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7 0
4 years ago
Read 2 more answers
How much do I have to deposit today in order to have $5000 in 5 years if interest is 8.5% compounded annually?
alina1380 [7]

Answer:

PV= $3,402.9

Step-by-step explanation:

Giving the following formula:

Future Vale (FV)= $5,000

Number of years (n) 5 years

Interest rate (i)= 8.5% compounded annually

<u>To calculate the initial investment (PV), we need to use the following formula:</u>

PV= FV / (1 + i)^n

PV= 5,000 / (1.085^5)

PV= $3,402.9

6 0
3 years ago
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