Answer:
find the square root of 64
x=8
Step-by-step explanation:
Answer:
4x² - 20x + 25
Step-by-step explanation:
(2x-5)² means (2x-5)(2x-5)
Expand the brackets.
1. do 2x times 2x = 4x²
2. do 2x times -5 = -10x
3. -5 times 2x = -10x
4. -5 times -5 = 25
Altogether it is 4x² - 10x - 10x + 25
This simplifies to 4x² -20x + 25.
Answer:
The angle of elevation of the sun from the ground to the top of a tree is .
Step-by-step explanation:
As given
The sun from the ground to the top of a tree when a tree that is 10 yards tall casts a shadow 14 yards long.
Now by using the trignometric identity .
As figure is given below .
AB = Perpendicular = 10 yards
BC = Base = 14 yards
Putting all the values in the trignometric identity .
Therefore the angle of elevation of the sun from the ground to the top of a tree is .
Greetings!
Let l represent the
length of the rectangle.
Let w represent the
width of the rectangle.
Isolate for the l in Equation #2.
Substitute
Equation #2 into Equation #1.
Combine Like Terms.
Distribute the Parenthesis.
How? <span>Multiply the terms inside the Parenthesis by the term outside of the Parenthesis.
</span>
Add 2 to both sides.
Divide both sides by
8.
The Answer Is:
The Width is
6 units and the Length is
17 units.
Hope this helps.
-Benjamin
X is 30 because we can minus 60on both sides and add 3x on both sides to find the answer