Answer:
12.1
Step-by-step explanation:
Answer:
x = 1
Step-by-step explanation:
Well the first step is to apply the distributive property:
4(3x - 1) is equal to (12x - 4). You DISTRIBUTE a '4' to what is inside the parentheses.
And btw, to make it easier, you can make 9 - x so that x is first. For example, (-x + 9). They're both the same thing, just written differently.
Your new equation is 12x - 4 = -x + 9. You want to now solve the equation.
Add the (-x) to both sides. It cancels out on the right side and you add it to 12x on the left side.
[If there's no number in front of a variable, you can always just put 1 in order to make it easier]
12x + 1x = 13x. Your new equation is 13x - 4 = 9. This should look very familiar. You simply add 4 to both sides. 9 + 4 = 13
Finally, 13x = 13. Divide 13 ÷ 13 to get 1.
x = 1
First, find the radius
2
r=circumference
r=18
cm
-------------
2
r=9 cm
Now, we can just use the circle area formula to solve
=
=81
=<span>
254.469 </span>
cm^2
Answer: Option 'B' is correct.
Step-by-step explanation:
Since we have given that
ΔABC is an isosceles and ∠B and ∠C are congruent.
So, ∠B=∠C=3x+1
∠A=
As we know the formula for "Sum of three angles in a triangle ":
Hence, Option 'B' is correct.
Answer:
Step-by-step explanation:I don't say u have to mark my ans as brainliest but if it has really helped u plz don't forget to thank me...