The required number of the given question is 20.
Step-by-step explanation:
Given:
2
is 11% of a given number.
To find:
The given number
Let, the number be "x"
According to the problem,
2
= 11% of x
or, 2
= x ×
or,
= 
or, 11 ×5x = 100×11 [ by cross multiplication]
or, x = 20
9514 1404 393
Answer:
A, B, D
Step-by-step explanation:
For appropriate values of 'a', the log function has the following characteristics:
- A: f(1) = 0
- B: f(a) = 1
- D: f(1/a) = -1
Any log function will tend toward negative infinity as x tends to zero (for |a|>1).
Answer:
-1.825
Step-by-step explanation:
Just subtract!
Answer:
C
Step-by-step explanation:
The picture is a bit blurry, but from what i can see, i'd say C (whichever one has -4 x 3 x 1 under the square root.)
So for this, you need to know the quadratic formula, which is:

<em>*ignore the weird capital A, it keeps coming up when i try to use the ± symbol</em>
They have given you the equation of a quadratic, so the first thing you have to do is rearrange it, so that
comes first.
<u>So now we have the equation: 3</u>
<u> - 2x +1</u>
*the quadratic formula uses a, b and c, but they are specific. a is always the coefficient of
, b is always the coefficient of x and c is always the constant (number without an x)
<u>So, i can find that, in this case:</u>
a = 3 b= -2 c=1
<u>Now substitute each of those values it into the original quadratic equation:</u>
<u />

<em>*again, ignore the weird capital A. </em>
That's how you find the answer, which from what i can tell in the picture is C.
Hope that helped : )