3 years ago

Find the perimeter of composite figures

Mathematics

1 answer:

worty [1.4K]3 years ago

5 0

Answer: 15 ft

Step-by-step explanation:

You basically add all the sides:

3 + 3 + 3 + 3 +3 = 15 ft

And if you have to add 12 ft then the answer should be 27 ft in total.

I hope this helped!

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From a group of 12 students, we want to select a random sample of 4 students to serve on a university committee. How many combin

borishaifa [10]

Answer:

495 combinations of 4 students can be selected.

Step-by-step explanation:

The order of the students in the sample is not important. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

How many combination of random samples of 4 students can be selected?

4 from a set of 12. So

$C_{n,x} = \frac{12!}{4!(8)!} = 495$

495 combinations of 4 students can be selected.

8 0

3 years ago

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denis23 [38]

The answer would be A D E

8 0

3 years ago

5. The temperature was

Vesna [10]

Answer:

6.2 is the difference

Step-by-step explanation:

4 0

3 years ago

HELP PLEASE I NEED HELp

lidiya [134]

Answer:

Step-by-step explanation:

GH bisects ∠FGI

∠HGI = ∠HGF

4x - 14 = 3x - 3

4x = 3x - 3 + 14 {Add 14 to both sides}

4x = 3x + 11 {Subtract 3x from both sides}

4x - 3x = 11

x = 11

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= 4*11 - 14

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4 0

3 years ago

The product of five and a number, increased by 9 is equal to fifteen less than three times then

bonufazy [111]

Answer:

x = -12

Step-by-step explanation:

Let x be the number.

The product of 5 and x increased by 9 is equal to 15 less than 3 times x.

5x + 9 = 3x - 15.

We can isolate x, getting (5-3)x = -15-9

Then we can solve:

2x = -24

x = -12.

8 0

3 years ago