Step-by-step explanation:
4a² - 8ab + 4b²
= (2a)² - 2 * 2a * 2b + (2b) ²
= (2a - 2b) ²
Hope it helps :)
<span>1.The LCM is their product. The LCM of 4 and 9 is 36.
</span><span>2.If two numbers have no common factor greater then one, then their LCM is the two
</span>
Answer:
- Definitions matched below with vocabulary words
Step-by-step explanation:
A number, a variable, or the product of a number and variable(s)
A letter used to represent an unknown number
The number in front of a variable in a term
A single term, multiple terms connected by an addition or subtraction sign
A number, a term containing no variables
The choices are not attached but we can solve the problem from the given information
Answer:
The expression can be used to find h is
The height of the cone is
cm
Step-by-step explanation:
The formula of the volume of the cone is V =
π r² h, where
- r is the radius of its base
- h is the height of it
Let us find the height of the cone from the formula of its volume
∵ V =
π r² h
- Multiply both sides by 3
∴ 3 V = π r² h
- Divide both sides by π r²
∴ 
- Switch the two sides
∴
The expression can be used to find h is
∵ The radius of the cone is 7 cm
∴ r = 7
∵ The volume of the cone is 147 cm³
∴ V = 147
- Substitute them in the expression of the height to find it
∵ 
∴ h =
cm
The height of the cone is
cm
Answer: 5x-21
Step-by-step explanation: Simplify the expression.
Hope this helps you out! ☺