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3 years ago

14

Is -13 over -12 rational or irrational?

1 answer:

otez555 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

-13/-12 = 1.0833......

The number is non terminating and repeating. So, it is rational number

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Help!!!!!!!!!!!!!!!!!!!!!

Stells [14]

your answer is B. I believe im not 100% sure though.

7 0

3 years ago

Given: 3x + y = 1.<br> Solve for y. <br> A. y = -3x + 1<br> B.y = -3x - 1<br> C.y = 3x - 1

RUDIKE [14]

Y=-3x+1
So the answer is A. All you're doing is moving the 3x to the opposite side, and because your switching the side, you need to switch the sign. So it's a negative 3x after you solve for y. Solving for y(or any letter) is just getting that letter alone on one side of the equal sign.

3 0

3 years ago

The population of rabbits on an island is growing exponentially. In the year 1991, the population of rabbits was 9100, and by 19

lisabon 2012 [21]

Answer:

$39,223\ rabbits$

Step-by-step explanation:

we know that

The equation of a exponential growth function is given by

$y=a(1+r)^x$

where

y is the population of rabbits

x is the number of years since 1991

a is the initial value

r is the rate of change

we have

$a=9,100$

substitute

$y=9,100(1+r)^x$

For the year 1998

the number of years is equal to

x=1998-1991=7 years

so

we have the ordered pair (7,18,000)

substitute in the exponential equation and solve for r

$18,000=9,100(1+r)^7$

$(18,000/9,100)=(1+r)^7$

elevated both sides to 1/7

$(1+r)=1.1023$

$r=0.1023$

therefore

$y=9,100(1+0.1023)^x$

$y=9,100(1.1023)^x$

Predict the population of rabbits in the year 2006

Find the value of x

x=2006-1991=15 years

substitute the value of x in the equation

$y=9,100(1.1023)^{15}$

$y=39,223\ rabbits$

6 0

3 years ago

The polynomial 4x^3 - 6x^2 + 8x – 12 can be grouped in different ways to factor by

zubka84 [21]

Answer:

(4x3-6x) + (8x-12)= 2x

(4x3+8x) + (-6x2-12)= 2(2x-3) (x^2+2)

Step-by-step explanation:

All you have to do is simplify.

8 0

3 years ago

Check my answer please? Get 25 points + Brainliest!!

Zigmanuir [339]

No its sss because you have no given angles only sides

7 0

3 years ago