Y - the height of trees after they have been planted;
x - the height of the trees in the pot;
y = x - 12
It a tree is 64 inches tall in the pot:
y = 64 - 12 = 52
The height of a tree is 52 inches.
The answer is 5.5
The standard deviation (sd or σ) of the sample mean difference is:
sd = √(sd₁²/n₁ + sd₂²/n₂)
For the population A:
sd₁ = 17.6
n₁ = 25
For the population B:
sd₂ = 21.2
n₂ = 30
Hence:
sd = √(sd₁²/n₁ + sd₂²/n₂)
= √(17.6²/20 + 21.2²/30)
= √(309.76/20 + 449.44/30)
= √(15.49 + 14.98)
= √(30.47)
= 5.5
The first thing we must do in this type of problem is first to name the variables that we are going to use to write the inequality.
We have then:
b = the weight of books on the shelf.
The inequality is:
b <= 95
answer:
An inequality to represent the situation is
b <= 95
Let
x--------> the measure of the adjacent interior angle
y--------> the measure of an exterior angle at the vertex of a polygon
we know that
The measure of the adjacent interior angle and the measure of an exterior angle at the vertex of a polygon are supplementary angles
so
°
<u>Examples</u>
case 1)
<u>In a square</u>
°
so
°

In this case
The measure of an exterior angle at the vertex of a polygon equals the measure of the adjacent interior angle
case 2)
<u>an equilateral triangle</u>
°
so
°

In this case
The measure of an exterior angle at the vertex of a polygon is not equals the measure of the adjacent interior angle
therefore
<u>the answer is</u>
sometimes
Answer:
The two values of x are -2.5 and -3
Step-by-step explanation:
we have

The formula to solve a quadratic equation of the form
is equal to
in this problem we have
substitute in the formula
therefore
The two values of x are -2.5 and -3