Answer:
2x^2
Step-by-step explanation:
The coefficients of the terms in this expression are 8, 4, and 18.
The largest number that you can divide all of them with and get a whole number is 2.
So, 2 is part of our greatest common factor.
These terms also have the variable x. The exponent of the smallest x term is 2, so x^2 is the other part of our greatest common factor.
Answer:The area of a circle is the number of square units inside that circle. If each square in the circle to the left has an area of 1 cm2, you could count the total number of squares to get the area of this circle.
Step-by-step explanation:The area of a circle can be found by multiplying pi ( π = 3.14) by the square of the radius.
If a circle has a radius of 4, its area is 3.14*4*4=50.24.
If you know the diameter, the radius is 1/2 as large
Answer:
x = 20°
Step-by-step explanation:
Since BD = CD then Δ BCD is isosceles and its base angles are congruent, so
∠ CBD = ∠ BCD = 80° , then
∠ BDC = 180° - (80 + 80)° = 180° - 160° = 20°
∠ ADC = 180° - (80 + 60)° ← sum of angles in triangle
∠ ADC = 180° - 140° = 40° , then
∠ BDC + x = 40°
20° + x = 40° ( subtract 20° from both sides )
x = 20°
Answer:
its 10.5 cm
Step-by-step explanation:
its what I got off of khan
Answer:
3x + 21 or 21 + 3x
Step-by-step explanation:
Remark
This is an example of the distributive property. Of all the fundamental rules used in solving equations, this is likely the most important, at least at beginning levels.
Solution
What this is saying is two things.
1. you must multiply both terms on either side of the + sign by the factor outside the brackets.
2. You must not destroy a plus (or minus) sign unless the two terms inside the brackets are exactly the same.
3(7 + x) The terms are not the same, so your answer must have a plus sign
Left side of the plus: 3*7
Right side of the plus: 3 * x
The answer then is 21 + 3x
It is more commonly written as 3x + 21
