Step-by-step explanation:
(3x+3)(x+2)=
3x^2+6x+3x+6
=3x^2+9x+6
we get quadratic equation
find discriminant:
D=b^2-4ac=81-72=9
x=(-b±√D)/2a
x1=-6/6=-1
x2=-12/6=-2
one of the x values should be correct.
but why when I try to put values I get zero
Answer:
0.575
Step-by-step explanation:
There are two types of probabilities:
1. Theoretical Probability
2. Experimental Probability
The probability based on mathematical theories is called theoretical probability. It is not always true. i.e. the probability of getting a head in a toss of coin is 1/2 or 0.5 or 50%
Experimental probability is based on experiments. Experimental probability is always going to change whenever the experiment is performed.
The theoretical probability of getting a head while tossing a coin will always be 50% while experimental probability might be different the next time, experiment is performed.
In this case, the experimental probability will be 23/40 or 0.575 ..
Answer:
6+8=5−7
6x+8=5x-76x+8=5x−7
6+8−8=5−7−8
----------------------------
Simplify
Subtract the numbers
Subtract the numbers
6=5−15
----------------------------
Subtract
5
5x5x
from both sides of the equation
---------------------------
6=5−15
6x=5x-156x=5x−15
6−5=5−15−5
-----------------------
Simplify
Combine like terms
Multiply by 1
Combine like terms
=−15
-----------------------------
Solution
=−15
Step-by-step explanation:
<h2>ask me in brainlist answer please </h2>
1. £36 times 3
2. £108 / 4
3 £27
Answer:
right triangles are 90 degrees sooooo
add 39 plus 27, that's 66
90 minus 66 issss <u>24</u>
