Answer:
Step-by-step explanation:
We know that the heron wingspan follow a normal distribution with an mean of 125 cm.
In this case we seek to find
If X is a random variable that represents the length of the heron wingspan, then X follows a normal distribution and therefore is a continuous random variable.
Then by definition of continuous random variable we have to:
where a is a constant.
That is to say that only the ranges of values can have a different probability of zero. The probability that a continuous random variable is equal to some exact value is always zero.
Finally we can conclude that
Answer:
35.54 degrees
Step-by-step explanation:
For A, we have the opposite side (5) and the adjacent side (7). We can use the inverse of tan and to tan⁻¹(5/7) to get 35.54
We use the inverse of tan because tanΘ=opposite/adjacent, and we want to find the angle. We multiply both sides by the inverse bc that's what we would do if it was a number, and then get tan⁻¹(5/7)
Hope this helps. Sorry if I added too much explaination
Answer:
what assignment? there is no picture attached :v
Step-by-step explanation:
Yes, because 6/7 is the same as 36/42 and 4/6 is the same as 28/42. It is easy to see that 6/7 is greater than 4/6
Answer:
D. y = 5/4x + 2 1/4
Step-by-step explanation:
The equation of the line is
y = mx + c
Step 1: find the slope
( 3 , 6) ( -1 , 1)
m = y2 - y1 / x2 - x1
m - is the slope of the line
( y1 , y2) - are point on the line
( x1, x2) - are point on the line
x1 = 3
y1 = 6
x2 = -1
y2 = 1
Inserting into the formula
m = y2 - y1 / x2 - x1
m = 1 - 6 / -1 - 3
m = -5/-4
Minus cancels minus
= 5/4
Step 2: substitute m into the equation of the line
y = mx + c
y = 5/4x + c
Step 3: sub any of the two points given into the equation
Let's pick ( 3 , 6)
x - 3
y - 6
y = 5/4x + c.
6 = 5/4(3) + c
6 = 5 * 3 / 4 + c
6 = 15/4 + c
c = 6 - 15/4
LCM = 4
c = 24 - 16 / 4
c = 9/4
c = 2 1/4
Step 4: sub c into the equation
y = 5/4x + c
y = 5/4x + 2 1/4
The equation of the line is
y = 5/4x + 2 1/4