3 years ago

Cho tập hợp A= { x= n² + 2 + 7 / n thuộc Z, -2 < n ≤ 3 } . Hãy viết tập hơp

Mathematics

1 answer:

olya-2409 [2.1K]3 years ago

4 0

Answer:

Step-by-step explanation:

You might be interested in

Eight more than three times the difference of four and a number” when n = 3?

Snezhnost [94]

8 + 3 (4 - n )
n= 3
8 + 3( 4-3)
8 + 3 * 1
8 + 3 = 11

8 0

3 years ago

Please help!! this is due TODAY!

Rzqust [24]

C I’m pretty sure that’s what is it

7 0

3 years ago

What’s the correct answer answer asap for brainlist

svetlana [45]

Answer:

Iron

Step-by-step explanation:

Just learned about this

6 0

1 year ago

Read 2 more answers

An ice cube is melting, and the lengths of its sides are decreasing at a rate of 0.8 millimeters per minute At what rate is the

julia-pushkina [17]

Answer:

The rate of decrease is: $43.2mm^3/min$

Step-by-step explanation:

Given

$l = 18mm$

$\frac{dl}{dt} = -0.8mm/min$ ---- We used minus because the rate is decreasing

Required

Rate of decrease when: $l = 18mm$

The volume of the cube is:

$V = l^3$

Differentiate

$\frac{dV}{dl} = 3l^2$

Make dV the subject

$dV = 3l^2 \cdot dl$

Divide both sides by dt

$\frac{dV}{dt} = 3l^2 \cdot \frac{dl}{dt}$

Given that: $l = 18mm$ and $\frac{dl}{dt} = -0.8mm/min$

$\frac{dV}{dt} = 3 * (18mm)^2 * (-0.8mm/min)$

$\frac{dV}{dt} = 3 * 18 *-0.8mm^3/min$

$\frac{dV}{dt} = -43.2mm^3/min$

<em>Hence, the rate of decrease is: 43.2mm^3/min</em>

8 0

3 years ago

Will mark brainliest if correct and you show your work.

Ksivusya [100]

Answer:

4(9x^4+1858)

Step-by-step explanation:

36 x^4 + 18^3 + 40^2

36x^4+7432

4(9x^4+1858)

7 0

3 years ago