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3 years ago

10

Please help me with this question

1 answer:

poizon [28]3 years ago

5 0

Prime number is a whole number greater than 1 whose only factors are 1 and itself. A factor is a whole number that can be divided evenly into another number. The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, 19
In this problem there's 9 prime numbers out of 20 so our probably is 9/20 because you have nine chances of geting a prime out of 20 balls total.

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PLEASE HELP ASAP

Tpy6a [65]

The area of the polygon with vertices W (1, 1), X (4, 4), Y (7, 1), and S (4, −8) is 36.
Have a great day! :D

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3 years ago

HELPPPPPPP me with #7

Anna007 [38]

(10x+y)(100x^2-10xy+y^2)

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3 years ago

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Which ratio is equivalent to 5/10

grin007 [14]

5÷5=1
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3 years ago

If d , e, and f are midpoints of the sides of ABC, find the perimeter of ABC.

ehidna [41]

Answer:

Perimeter of the ΔDEF = 10.6 cm

Step-by-step explanation:

The given question is incomplete; here is the complete question with attachment enclosed with the answer.

D, E, and F are the midpoints of the sides AB, BC, and CA respectively. If AB = 8 cm, BC = 7.2 cm and AC = 6 cm, then find the perimeter of ΔDEF.

By the midpoint theorem of the triangle,

Since D, E, F are the midpoints of the sides AB, BC and CA respectively.

Therefore, DF ║ BC and $FD=\frac{1}{2}\times(BC)$

FD = $\frac{7.2}{2}$

= 3.6

Similarly, $FE=\frac{1}{2}\times(AB)$

$FE=\frac{8}{2}$

FE = 4 cm

And $DE=\frac{AC}{2}$

DE = $\frac{6}{2}$

= 3 cm

Now perimeter of ΔDEF = DE + EF + FD

= 3 + 4+ 3.6

= 10.6 cm

Perimeter of the ΔDEF is 10.6 cm.

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3 years ago

Why do scientists use the international system of units (SI)

k0ka [10]

So it can be known anywhere. So we use all of the same measurements

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