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3 years ago

Simplify this -2(y+3)

Mathematics

2 answers:

Alexandra [31]3 years ago

7 0

Answer:

-2y-6

Step-by-step explanation:

Anika [276]3 years ago

7 0

Answer:

= -2y+- 6 or -2y-6

Step-by-step explanation:

you multiply the -2 and the y and you get -2y then you multiply-2 and 3 and you get -6 so therfore it can be written as -2y-6 or -2y+-6

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Please help on question 12 or 13 as soon as possible

Anna007 [38]

Answer:

to know the summation of angles: (n-2)*180

here (n) represent numbers of sides

12)we have 5 sides (n=5)

(5-2)*180=540

x=540-(105+135+92+87)=121

13)we have 8 sides (n=8)

(8-2)*180=1080

x=1080-(116+158+141+124+136+132+129)=144

I hope it will help

3 0

3 years ago

4. Two cylinders have dimensions in the ratio of 2:3. The smaller cylinder has a surface area of 16 cm.

Zarrin [17]

Answer:

(cross multiply)

2:3

16:X

2X=16×3

2x=48

x=48÷2

x=24

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3 years ago

Evaluate Combination (6,6)

andrew11 [14]

Answer:

$nCx = \frac{n!}{x! (n-x)!}$

On this case n =6 and x =6 we got:

$6C6 = \frac{6!}{6! (6-6)!} = \frac{6!}{6! 0!}= \frac{6!}{6!}=1$

Step-by-step explanation:

The utility for the combination formula is in order to find the number of ways to order a set of elements

For this case we want to find the following expression:

$6C6$

And the general formula for combination is given by:

$nCx = \frac{n!}{x! (n-x)!}$

On this case n =6 and x =6 we got:

$6C6 = \frac{6!}{6! (6-6)!} = \frac{6!}{6! 0!}= \frac{6!}{6!}=1$

8 0

3 years ago

What is 14/25 as a percent

coldgirl [10]

You simply divide, since it's a fraction. If you divide 14 b7 25, you get an answer of 0.56. :)

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3 years ago

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Which equation could be represented by 5 divided by 1/2 = 10

kkurt [141]

Answer:

Step-by-step explanation:

Here's what you write:

---------- = 5(2/1) = 5(2) = 10

(1/2)

7 0

3 years ago

Read 2 more answers