Answer:
x = 22/3
Step-by-step explanation:
QR + RS = QS
=> 2x + 1 + 4x + 17 = 9x - 4
-3x = -22
x = 22/3
Answer:
<h3>1)m+5q=1+5x5 =26</h3><h3>2)(y-x^3)=3-1^3 =3-1 =2</h3><h3>3)q(p+2)=3(3+2) =3(5) =15</h3><h3>4)y+y-x=5+5-6 =10-6 =4</h3><h3>5)(z+y)÷6=6+6÷6 =2</h3><h3>6)h(j-h)=3(6-3) = 3x3=9</h3><h3>7)x+y+y = 5+2+2=9</h3><h3>8)z^2-y =9-4=5</h3><h3>9)b(4+a)=2(4+6) =2x10 =20</h3><h3>10)m-n+m =5-1+5 = 4+5 =9</h3><h3>11)(h+j)÷6 = (2+4)÷6 = 1</h3>
<h3>mark as brainliast plz</h3>
Answer:
There is a 52% probability that she will get it right.
Step-by-step explanation:
We have these following probabilities:
A 40% probability that the student knows the answer to a question.
A 60% probability that the student does not know the answer to a question.
If the student does not know the answer to a question, a 20% probability of getting the question right guessing.
If we choose a question at random from the exam, what is the probability that she will get it right?
40% probability that she knows the answer
60% that she has to guess, when there is a 20% probability of getting it right. So
There is a 52% probability that she will get it right.
I'm pretty sure the answer to A would be this: the common point that satisfies both equations (where they intersect) can be shown AS 4^(-x) = 8^(-x-1).
The answer to B is forming a table. This is quite easier than you think :D.
Start with x on one side (3) and go all the way down to -3 like this:
(x) 4^-x 8^-x-1
-3 64 (Do the same with this)
-2 16
-1 4
0 1
1 1/4
2 .0625
3 .015625
So basically you just fill in the x variable with every number between 3 and -3. After that, it's just a bit of math and you've done it!
C is a bit misguided. I think it would be quite simple to just use a graphing calculator, but you would have to actually input all the x and y values from the table. After that, you will have a graph.
I hope I helped! Good luck and good day!
Answer:
y= -2/3x+2
Step-by-step explanation:
hope this helps
sorry if wrong
#Virgo2007
let me know if i am wrong