Answer:
X<-5
Step-by-step explanation:
X has to be <-5 and <=2
If you draw a number line, you can see clearly that - 5 become first than 2.
If the condition is that it has x≤2 and x< -5, you don't take the values between - 5 and 2, cause the 2nd condition makes the result ]-infinity;-5[
You've already completed the first step by lining up terms with the same variables. Like addition, simply add them together column by column. x+(-x) equals 0 so it is cancelled out. 4y plus 6y is 10y. 9+11=20. We are left with 10y equals 20, so y equals 2. Then plug in the y value into either equation. I will use the first so x +4(2)=9. x must equal 1. Double check by plugging in both x and y into the second equation.
Yes that is one way. You can also prove that a shape is a square by looking at the angles and each side are congruent to each other
Answer:
Length should be 15 cm and width should be 5 cm
Step-by-step explanation:
5 * 3 = 15
15+15+5+5=40
:)
Answer:
The standard deviations is 
Step-by-step explanation:"
Given mean female height = 64 inches and standard devaiton = 3 inches and 69 inches tall is Sally.
We know the distance of a data point from:
Z =
=
So the standard deviations is
