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3 years ago

Three times the sum of a number squared and 4

Mathematics

1 answer:

kozerog [31]3 years ago

5 0

Answer:

Step-by-step explanation:

3(N² + 4)

3N² = 12

3N² ÷ 3 = 12 ÷ 3

N² = 4

√N² = √4

N = 2

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35 POINTS!!! Laura is constructing an inscribed square. Gavin is constructing an inscribed regular hexagon. In your own words, d

Nikolay [14]

One is a square with 4 sides and the other is a hexagon with 8

7 0

3 years ago

Pls help me i dont really understand

zaharov [31]

Answer:

y - 5

12x + 18y

Step-by-step explanation:

6) five less than y

y - 5

7) six times the quantity of<u> two x plus 3 y</u>

2x + 3y

six times the above exp

6(2x + 3y)

= 12x + 18y

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3 years ago

You have seven cards, numbered 3 through 9, and you pick one at random. If you pick a card with a prime number, you get 1 point;

Roman55 [17]

Answer:

He has $\frac{-1}{7}$ number of points

Step-by-step explanation:

We have given that numbers from 3 to 9

So numbers will be 3,4,5,6,7,8,9

Here prime numbers are 3,5,7

And composite numbers are 4,6,8,9

So probability of getting prime number = $\frac{3}{7}$

And probability of getting composite number $=\frac{4}{7}$

It is given that if he gets prime number then he get 1 point and if he get composite number then he loss 1 point '

So value of number of point he has = $1\times \frac{3}{7}-1\times \frac{4}{7}=\frac{-1}{7}$

4 0

3 years ago

Please help asap I'm not sure how to do this

-BARSIC- [3]

I am not sure sorry about that

8 0

3 years ago

If a car goes around a turn too quickly, it can leave tracks that form an arc of a circle. By finding the radius of the circle,

Sveta_85 [38]

I just encountered this question. Here's my answer.

Given:
Segment AC = 130 feet
Segment CD = 70 feet

I think that I'll be using the Pythagorean Theorem in finding the value of r. r will be the hypotenuse

Segment CE = (r - 70 feet)

r² = a² + b²
r² = 130² + (r-70)²
r² = 16,900 + (r-70)(r-70)
r² = 16,900 + r² - 70r - 70r + 4900
r² - r² + 140r = 16,900 + 4,900
140r = 21,800
r = 21,800/140
r = 155.71 feet

<span>The radius of the circle is 155.71 feet.</span>

3 0

3 years ago

Three times the sum of a number squared and 4​

Three times the sum of a number squared and 4