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koban [17]
2 years ago
6

Factorise fully 3r+6r2

Mathematics
2 answers:
maks197457 [2]2 years ago
6 0

Answer:

3r(1+2r2)

Step-by-step explanation:

velikii [3]2 years ago
3 0

Answer:

3r(1 + 2r)

Step-by-step explanation:

3r + 6r^2

take common

3r(1 + 2r)

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The number of rows in an auditorium can be represented by the function f(x) = 80x. The number of seats in each row can be repres
rusak2 [61]

Answer:

h(x) = 80x^2 + 560x

Step-by-step explanation:

To find the function h(x), that represents the total number of seats, we just need to multiply the functions f(x) (number of rows) and g(x) (number of seats per row):

h(x) = f(x) * g(x)

h(x) = 80x * (x+7)

h(x) = 80x*x + 80x*7

h(x) = 80x^2 + 560x

So the function that represents the total number of seats is:

h(x) = 80x^2 + 560x

4 0
3 years ago
Does anyone know this answer?
vladimir1956 [14]
It is leaner because the progress of the tree growth is constant. Every year it increases 2 feet staring at 20 feet
3 0
3 years ago
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PLEASE HELP WILL GIVE BRAINLIEST!!!
zepelin [54]

Answer: Choice B) Investment decreases by 3% each month

=====================================================

Explanation:

We won't use the value 2500 at all.

The base of the exponential is 0.97

Set this equal to 1+r and solve for r

1+r = 0.97

r = 0.97-1

r = -0.03

The negative r value indicates we have exponential decay, so the value of the investment decreases by 3% each month.

Let's say you had $100 to start off. This would mean the investment would be worth $97 after one month is up.

7 0
3 years ago
Plz help #30 plz explain <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B200%20%7Bx%7D%5E2%20%7By%7D%5E2%20%7Bz%7D%5E2" id="T
Charra [1.4K]

For number 30, its easier if its broken down so were going to make it √200*x^2*y^2*z^2. We can't get a square root of 200 so we will break it into 100*2 to get √2*100*x^2*y^2*z^2. Now let's look at what we can take the square roots of. 2 doesn't have a nice sq. rt. so we will leave it there. 100 has the rt. of 10 so we can make 10√2*x^2*y^2*z^2. X^2 has the root x and we can follow this with the other variables to get 10xyz√2. There is your final simplified answer.

6 0
3 years ago
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What's the distance between equations y=2x+3 and y=2x-3
stiv31 [10]
It is 6 as one of them is +3 and the other is -3, the difference between 3 and -3 is 6
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3 years ago
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