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3 years ago

Domain of the function

Mathematics

1 answer:

Vlada [557]3 years ago

3 0

Hello :
y exist : x+6 ≥ 0
x ≥ -6

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HELP!!!! Choose the correct answer. Which expression, when evaluated,

blagie [28]

We will check each options and verify it

(a)

$18-2m$

we can plug m=2

$18-2\times 2$

$18-4$

$14$

so, this is FALSE

(b)

$7x-\frac{x}{3} >19$

we can plug x=3

$7\times 3-\frac{3}{3} >19$

$21-1 >19$

$20 >19$

so, this is TRUE

(c)

$6x-1>4x+5$

we can plug x=3

$6\times 3-1>4\times 3+5$

$18-1>12+5$

$17>17$

so, this is FALSE

(d)

$2x^2-3x+1$

now, we can plug x=2

$2(2)^2-3(2)+1$

$8-6+1$

$3$

So, this is FALSE

8 0

3 years ago

A machining operation produces bearings with diameters that are normally distributed with mean 3.0005 inches and standard deviat

padilas [110]

Answer:

Step-by-step explanation:

The 68-95-99.7 rule for the Normal distribution is an empirical rule that remind us the percentages of data that falls between the mean ± 1, ± 2 and ± 3 standard deviations.

That is to say, if the mean is m and the standard deviation s, roughly speaking 68% of the data falls between [m-s, m+s], 95% between [m-2s, m+2s] and 99.7% between [m-3s, m+3s].

Since the mean is 3.0005 and the standard deviation is s=0.0010, 2s=0.0020, 95% of the data should fall between [3.0005-0.0020, 3.0005+0.0020] and 5% outside this interval. So around 5% of total production will be scrap.

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3 years ago

3 cans that store 9 tennis balls... Find the constant of proportionality & write a equation to represent the relationship PL

Lilit [14]

3 cans store 9 tennis balls.
Find the Constant of proportionality and write and equation with regards to this given situation:
=> number of tennis balls = 9
=> number of cans = 3

 So the constant of proportionality is in the working column. Pls see attached.

7 0

3 years ago

Trever was 36 years old five years ago. How old is he now?

Komok [63]

He’s 41 now
just add 5 to his age

7 0

3 years ago

Read 2 more answers

7) David uses 2 1/4 cups of dough to make a

Dafna11 [192]

Answer:

9 3/8 ÷ 2 1/4

Step-by-step explanation:

too lazy too do it, plus if ur having a hard time doing fractions on a calc, just do 1÷4 as a replacement for .25 when shown 1/4. just go to frac calc in the future it makes it easy ro use....

7 0

3 years ago