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3 years ago

What is the domain of the cubic function -(2x+3)^3 -1

Mathematics

1 answer:

Mazyrski [523]3 years ago

7 0

Answer:

(-infinite,+infinite)

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Help.........please.im done

olasank [31]

2. 105-45=\2=60
4. 3rd Choice
5. 21 x5= 6(y+6)
105= 6y+36
Subtract 36
69= 6Y
Divide by 6
Y= 11.5
Answer IK= 17.5

7 0

2 years ago

It has been determined that 60% of the people in a certain midwest city who are responsible for preparing the evening meal have

natali 33 [55]

Answer:

Random sample, $np \geq 10$ and $n(1-p) \geq 10$ , so yes, both conditions were satisfied.

Step-by-step explanation:

60% of the people in a certain midwest city who are responsible for preparing the evening meal have no idea what they are going to prepare as late as 4PM in the afternoon.

This means that $p = 0.6$

A recent survey was conducted from 1000 of these individuals.

This means that $n = 1000$

Also, a random sample, so the first condition was satisfied.

The sample size must be large (so that at least 10 or more successes and failures).

$np = 1000*0.6 = 600 \geq 10$

$n(1-p) = 1000*0.4 = 400 \geq 10$

So yes, both conditions were met.

4 0

3 years ago

Y is inversely proportional to x.

DedPeter [7]

Answer:

see explanation

Step-by-step explanation:

Given that y is inversely proportional to x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of proportionality

To find k use the condition that y = 7, x = 9

k = yx = 7 × 9 = 63, thus

y = $\frac{63}{x}$ ← equation of proportion

When x = 21, then

y = $\frac{63}{21}$ = 3

7 0

3 years ago

What can you triple and then subtract by 7 to get -1

iVinArrow [24]

Answer:

Step-by-step explanation:

let the number be x

Then you triple the x and minus 7 from it and you equate it to -1

7 0

2 years ago

Help math beats me up in dark alleys

andriy [413]

Replace x with 3:

f(x) = 20(0.5)^x

f(3) = 20(0.5)^3

First do 0.5^3 = 0.125

Now multiply that by 20:

20 x 0.125 = 2.5

f(3) = 2.5

3 0

2 years ago