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Luda [366]
2 years ago
14

Find the difference (-6d+2)-(7+2d)

Mathematics
2 answers:
Hunter-Best [27]2 years ago
7 0

Answer:

-8d-5

Step-by-step explanation:

Cerrena [4.2K]2 years ago
6 0

Answer:

-8d-5

HOPE THIS HELPS

- Todo ❤️

Step-by-step explanation:

-6d-2d=-8d

2-7=-5

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Lostsunrise [7]
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4 0
3 years ago
Help me out plzzzzzzzz​
Furkat [3]

Answer:

d

Step-by-step explanation:

5x -2

Answer choices:

a. 2-5x

b. 3-5 +2x

c. 5x-2x

d. 2x-2+3x

a.

2-5x can be rewritten as -5x+2, which is not the same as 5x-2

b. 3-5 + 2x can be rewritten as -2 + 2x or 2x-2 which is not equivalent to 5x-2

c. 5x-2x is 3x

3x doesn't equal 5x-2

d. 2x+3x-2 = 5x-2

This expression is equivalent to 5x-2

5 0
2 years ago
To support National Heart Week, the Heart Association plans to install a free blood pressure testing booth in El Con Mall for th
worty [1.4K]

Answer:

(a) Average number expected = 13.07 people

(b) Average number of persons = 14 persons

(c) Average amount of time = 0.9333 hours

(d) Time taken = 1 hour

Step-by-step explanation:

We are informed that the arrivals have a Poisson distribution from an infinite population. On average, 14 persons per hour request a test. Hence,

Arrival rate = λ = 14

Each blood pressure measurement takes 4 minutes. In 1 hour, 60 / 4 = 15 persons are served. Hence,

Service rate = μ = 15

(a) Average number in line = (λ^2) / μ(μ - λ)

                                             = (14^2) / 15(15 - 14)

                                             = 13.07

(b) Average number in system = λ / (μ - λ)

                                                   = 14 / (15 - 14)

                                                   = 14

(c) Average waiting time = Average number in line / λ

                                         = 13.07 / 14

                                         = 0.9333

(d) Average total time = Average number in system / λ

                                     = 14 / 14

                                     = 1

6 0
2 years ago
A grocery store charges $3.00 for 4 two-liter bottles of lemonade. David has $12.00 in his wallet. Since David is having a party
nevsk [136]
No because he will be $3.00 short.
So it is $0.75 a bottle. So then you multiply $0.75 by 20. You get $15.00
So David will not have enough in his wallet.
8 0
2 years ago
A rug in the shape of a regular quadrilateral has a side length of 20 ft. What is the perimeter of the rug? a.4 b.5 c.40 d.80
AlexFokin [52]

Answer:C.40


Step-by-step explanation:


6 0
3 years ago
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