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Fittoniya [83]
3 years ago
13

The length of chen's office is 15.5 feet and the width is 7.8 feet.Use the formula P=2L+2w to find the perimeter of the office.​

Mathematics
1 answer:
vlada-n [284]3 years ago
8 0

Answer:

p=46.6 feet

Step-by-step explanation:

formula:2l +2w. 2×15.5f. 2×7.8= 46.6 feet

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[ 18 x ( 3 - 2 ) ] divided by 1 + 5
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Answer:

3

Step-by-step explanation:

3-2= 1

1*18=18

1+5=6

18/6=3

7 0
3 years ago
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A survey questioned 4,000 community members about how a certain parcel of land should be used (for
Anuta_ua [19.1K]

Using it's concept, it is found that the sample proportion for this population is of 0.4.

  • The estimate of the <em>sample proportion for a population</em> is given by the <u>number of desired outcomes divided by the size of the sample</u>.

In this problem:

  • 1,599 of those surveyed responded in favor of the park.
  • The sample size is of 4,000.

Hence:

p = \frac{1599}{4000} = 0.4

The sample proportion for this population is of 0.4.

A similar problem is given at brainly.com/question/14510808

4 0
2 years ago
What is the factor form of the polynomial X2-12+27
Oksanka [162]

Answer:

(x-9) (x-3)

Step-by-step explanation:

x^2 -12x +27

What 2 numbers multiply to 27 and add to -12

-9* -3 = 27

-9-3 = -12

(x-9) (x-3)

7 0
3 years ago
Anis completed a journey of 4.5 km by walking for 30 minutes at
iris [78.8K]

Answer:

speed=d/t

let him cover x distance while walking

running d=4.5-x

s1=x/0.5 km/hr....(1)

s2=4.5-x//5/12.....(2)

atq.....s2=2+s1

s1=2x

s2=54-12x/5

by eqn 1 and 2

s1+s2=2x+54-12x/5

putting value of s2

s1+2+s1=2x+54-12x/5....taking LCM =5

10s1+10= 10x+54-12x

as s1=2x

10s1+10= -2x+54

10s1+10=-s1+54

11s1=44

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5 0
3 years ago
A certain lot consisting of ten items has three defective items and seven nondefective items. How many possible subsets of 2 ite
Charra [1.4K]

Answer:

45

Step-by-step explanation:

The order in which the items are chosen 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 possible subsets of 2 items can be chosen from this lot?

Combinations of 2 from a set of 10. So

C_{10,2} = \frac{10!}{2!(10-2)!} = 45

4 0
3 years ago
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