Answer:
SD = 2x
UD = x
Step-by-step explanation:
The hypotenuse of a 30-60-90 triangle is 2 times the length of the shorter leg.
SU is the shorter leg = x
So, SD = 2x
The longer leg of a 30-60-90 triangle is times the shorter leg.
So, UD = x
Answer:
b. a specific value of the dependent variable for a given value of the independent variable
Step-by-step explanation:
In correlation analysis, one can measure the strength of the relationship between two or more variables.
The aim of this analysis is to understand that in case of any change in the <em>independent variable </em>there is also change in the<em> dependent variable</em> or not.
The most common correlation method used is Pearson correlation, which measures <em>linear relationships</em> between variables.
First we want to isolate x from 5x + y = 9 so to do so. We subtract y from both sides.
5x + y - y = 9 - y
Simplify.
5x = 9 - y
Divide both sides by 5.
5x/5 = 9/5 - y/5
Simplify again.
x = 9 - 5/y
Substitute x = 9 - 5/y
So 10 * 9 - 5/y - 7y = -18.
We wanna isolate y so...
10 * 9 - 5/y
Multiply the fractions.
(9 - y) * 10/5
Divide the numbers (10/5 = 2)
2(-y + 9)
Now we want to expand this.
2 * 9 + 2(-y)
Apply the minusplus rule
2 * 9 - 2y
This gives us 18 - 2y
From there we can add the similar elements
-2y - -7y = -9y
18 - 9y = -18
Subtract 18 from both sides.
18 - 9y - 18 = -18 - 18
Simplify again.
-9y = -36
Now divide both sides by -9
-9y/-9 = -36/-9
This gives us y = 4.
For x we just want to substitute 4 into it.
So 9 - 4/5 which is 5/5 which translates to 1.
Therefore y = 4 and x = 1.
Answer:
My closest calculation is 74 minutes
Step-by-step explanation:
08 : 59.52
min : sec
Speed
0.1112 miles per minute
=
6.67 miles per hour
448
because: convert 87.5% to a decimal
x = .875 × 512
x = 448