1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ser-zykov [4K]
3 years ago
14

N³+2n is divisible by3​

Mathematics
2 answers:
Ludmilka [50]3 years ago
8 0

Answer: Watch explanations

Step-by-step explanation:

Veseljchak [2.6K]3 years ago
7 0

Answer:nope it's not divisible

Step-by-step explanation:

You might be interested in
A bridge is built in the shape of a parabolic arch. The bridge arch has a span of 166 feet and a maximum height of 40 feet. Find
scoray [572]

Answer:

38.27775 feet

Step-by-step explanation:

The bridge has been shown in the figure.

Let the highest point of the parabolic bridge (i.e. vertex of the parabola) be at the origin, O(0,0) in the cartesian coordinate system.

As the bridge have the shape of an inverted parabola, so the standard equation, which describes the shape of the bridge is

x^2=4ay\;\cdots(i)

where a is an arbitrary constant (distance between focus and vertex of the parabola).

The span of the bridge = 166 feet and

Maximum height of the bridge= 40 feet.

The coordinate where the bridge meets the base is A(83, -40) and B(-83, -40).

There is only one constant in the equation of the parabola, so, use either of one point to find the value of a.

Putting A(83,-40) in the equation (i) we have

83^2=4a(-40)

\Rightarrow a=-43.05625

So, on putting the value of a in the equation (i), the equation of bridge is

x^2=-172.225y

From the figure, the distance from the center is measured along the x-axis, x coordinate at the distance of 10 feet is, x=\pm 10 feet, put this value in equation (i) to get the value of y.

(\pm10)^2=-172.225y

\Rightarrow y=-1.72225 feet.

The point P_1(10,-1.72225) and P_2(-10,-1.72225) represent the point on the bridge at a distance of 10 feet from its center.

The distance of these points from the x-axis is d=1.72225 feet and the distance of the base of the bridge from the x-axis is h=40 feet.

Hence, height from the base of the bridge at 10 feet from its center

= h-d

=40-1.72225=38.27775 feet.

8 0
3 years ago
What is the x-value of the solution of the system of
LenaWriter [7]

Answer:

Step-by-step explanation:

hello :

y= 5x + 9

y = -x +3

so : 5x+9 = -x+3

5x+x= 3-9

6x=-6

x=-6/6 = -1

5 0
3 years ago
Read 2 more answers
Find the lateral and total surface area for the cone. If necessary, round to the nearest tenth and leave the
bija089 [108]

9514 1404 393

Answer:

  • 262.2π cm²
  • 392.16π cm²

Step-by-step explanation:

The lateral surface area is the product of half the circumference, and the slant height:

  LA = πrh = π(11.4 cm)(23 cm) = 262.2π cm²

The total surface area adds the area of the base to that:

  A = πr² +LA = π(11.4 cm)² +262.2π cm² = (129.96 +262.2)π cm²

  A = 392.16π cm²

3 0
3 years ago
The difference of three times a number and 4 is 32. Find the number
Angelina_Jolie [31]

Answer:

3x - 4 = 32

Step-by-step explanation:

We solve for x to find the number (knowing that x is the unknown number).

3x - 4 = 32

3x = 32 + 4

3x = 36

x/3 = 36/3

x = 12

3 0
2 years ago
ANSWER ALL QUESTIONS
ra1l [238]

Answer:

1) 4 members have both pencil's and eraser's

i dont know others sry frnd

5 0
3 years ago
Other questions:
  • A marketing research consultant for a hotel chain hypothesizes that men and women differ in their color preference for guest roo
    10·1 answer
  • Whats equivalent to 14(8−6x+12)
    8·2 answers
  • A caterer provides a conference banquet for a price of $40 per person for 20 or fewer people but will decrease the price by $1 p
    11·1 answer
  • Can you help ?? Plzz
    6·1 answer
  • Please answer 23 and 24 for me pls pls pls
    10·1 answer
  • I’ll mark brainliest it’s super short❤️
    9·1 answer
  • Name the angle and the intercepted arc.
    11·1 answer
  • If my teacher is giving 6 prizes and I am the first one to get the prize. She says it’s in an envelope ✉️ what is it I will give
    9·1 answer
  • What is the value of x? <br><br><br><br>​
    5·1 answer
  • Help amirvan help bro
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!