angle B = ( arc ADB ) ÷ 2
46 = ( arc ADB ) / 2
Multiply both sides by 2
46 × 2 = 2 × ( arc ADB ) / 2
92 = arc ADB
arc AB = arc ADB
arc AB = 92
Let's use the Pythagorean Theorem to solve this.
One side is 10 inches, the other side we don't know, and the hypotenuse is 19 inches. We will call the side we don't know <em>x</em>.
Thus,
Answer:
ABOUT 13 PERCENT
Step-by-step explanation:
I AM NOT CERTAIN BUT I GOT IT BY:
NEW PRICE - OLD PRICE divided by OLD PRICE X 100
Answer:
Mean=685
Variance=36.7
Step-by-step explanation:
The mean of uniform discrete distribution can be expressed as the average of the boundaries
mean=( b+a)/2
The variance of uniform discrete distribution can be expressed as the difference of the boundaries decreased by 1 and squared, decreased by 1 and divided by 12.
σ²=[(b-a+1)^2 - 1]/12
We were given the wavelength from from 675 to 695 nm which means
a= 675, b= 695
We can now calculate the mean by using the expresion below
mean=( b+a)/2
Mean=( 675 + 695)/2
=685
The variance can be calculated by using the expression below
σ²=[(b-a+1)^2 - 1]/12
σ²=[(695-675+1)^2 -1]/12
σ²=440/12
σ²=36.7
Therefore, the the mean and variance, of the wavelength distribution for this radiation are 685 and 36.7 respectively
Second option
Also, the reason it can not be the third one is because the circle at -3 is shaded in, meaning x can equal - 3, whereas its not present in this inequality: 5 – x > 8
5 - x = 8
+x
5 = x + 8
-8
-3 = x
(when solving for x, make sure its positive, that's why I started of by adding x on both sides. It makes it easier to figure out the values that works of x. )
Hope this helps!
