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3 years ago

What are the solutions of -1 ≤ x – 3 < 4

Mathematics

1 answer:

cricket20 [7]3 years ago

7 0

Answer:

2 ≤ x < 7

Step-by-step explanation:

-1 ≤ x – 3 < 4

Add 3 to each side

-1+3 ≤ x – 3+3 < 4+3

2 ≤ x < 7

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Step-by-step explanation:

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2 years ago

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I need help with number 30......……

goblinko [34]

65+56=121, 180-121=59, 59/8=7.375 , so the answer is A

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3 years ago

The following are the temperatures of 10 days in winter in °C. − 3 , 0 , 10 , 2 , 8 , − 5 , − 1 , 9 , 2 , − 3 Work out the mean

marissa [1.9K]

The mean temperature of the given data − 3 , 0 , 10 , 2 , 8 , − 5 , − 1 , 9 , 2 , − 3 is 1.9

mean= 1.9

The mean, or average, is calculated by adding up the data and dividing by total number of data.

Given data: − 3 , 0 , 10 , 2 , 8 , − 5 , − 1 , 9 , 2 , − 3

Now, mean = $\frac{sum \;of\; observation}{Total \;number \;of \;observation}$

mean = $\frac{(-3)+ 0+10+2+8+(-5)+ (-1)+ 9+2+(-3)}{10}$

= $\frac{19}{10}$

mean= 1.9

Hence, the mean of − 3 , 0 , 10 , 2 , 8 , − 5 , − 1 , 9 , 2 , − 3 is 1.9

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1 year ago

Warren wants to build a rectangular enclosure for his animals. one side of the pen will be against the barn, so he needs no fenc

Lera25 [3.4K]

L +2w = 500
a = lw

a) l = 500 -2w
.. a = (500 -2w)*w

b) The zeros of the above equation are w=0, w=250. The vertex of this quadratic is on the line of symmetry, halftway between the zeros, at w=125 ft.

c) a = (500 -2*125)*125 = 31,250 . . . . square feet

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2 years ago

Why is the number of operators per shift multiplied by approximately 4.5 to obtain the total number of operators required to run

4vir4ik [10]

I believe you meant "why is the number of shifts multiplied by approximately 4.5 to obtain the total number of operators required to run the plant"

Answer and Explanation:

There are 3 shifts per day, 49 weeks per year and 5 shifts per operator per week

To get total number of operators required to run the plant, we multiply number of shifts in a year by number if operators per shift.

49 weeks×5 shifts= 245 shifts per operator per year

365×3 shifts= 1095 shifts per year

1095/245=4.5 operators per shift

total number of operators required to run the plant(per day) = 4.5×3= 13.5 approximately 14

total number of operators required to run the plant(per year) =4.5×1095=4927.5 approximately 4928

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3 years ago