Answer:
d
Step-by-step explanation:
Well you have to know that 1+3+5+...+(2n-1)=n^2
so n^2=196
n^2=(14)^2
n=14
so it's d
The hard part is just making sense of what they are asking for.
4 times the quantity of a number decreased by one is just the expression:
4 * (x-1)
Where "x" is our mystery number.
Two more than the same number is just:
x + 2
Where "x" is our same mystery number.
They say that these two expressions are the same, so just set them equal to each other.
4*(x-1) = x+2
4x - 4 = x +2
3x -4 = 2
3x = 6
x = 2
The mystery number is 2. Plug in 2 and you will see that it works!
Answer:
The required expression would be (a-4)x + (9-b)
Step-by-step explanation:
Given,
In the triangle,
Base = 4x + b,
Side = ax + 9
Since, Side - base = 



That is,
The base is (a-4)x + (9-b) shorter compared to the side.
Add them all together: 3 + 4 + 5 + 8 = 20
Add green and blue: 5 + 3 = 8
8/20
Simplify this, and you will have 2/5
Hope I could help! Let me know if there is anything else you need!
p.s. Brainliest? I am trying to get to higher ranks and it would really help :)
Answer:
P(lose) = 2/3
Step-by-step explanation:
P(win) has a 1/3 chance.
We are solving for P(lose)
Note that because P(win) has one chance out of 3, it assumes that P(total) = 3
Subtract: 3/3 - 1/3 = 2/3
P(lose) has a 2/3 chance
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