Answer:
2(1-x)+3x = 2-x
Step-by-step explanation:
Distribute 2 to 1 and -x ---> (2-2x)+3x
Combine Like Terms ---> 2-x
So 2(1-x)+3x = 2-x
7. In order to solve this problem, we subtract 70 from Hal's amount of money and multiply the result. This written out is:
(170-70)*5
This is equal to 500, so Bob has $500. D. is the correct answer.
8. Our first step in solving this problem is subtracting the cost of renting the studio from her total budget. This is:
318-109.50 = 208.5
Now, we divide 208.5 by 15 to see how many people can attend.
208.5/15 = 13.9
Because we are looking for the amount of people that can attend the class, we round 13.9 down. This means that 13 people can attend the class, so A. Is the right answer.
The two tangent theorem
RS = RT
So ΔRST = isosceles triangle
∠S = ∠T =( 180° - (48°) : 2 = 66°
∠TSR = 66°
Let
using a graph tool
see the attached figure
The figure is a triangle
we know that
<u>The Heron's Formula</u> is a method for calculating the area of a triangle when you know the lengths of all three sides.
Hero's Formula is equal to
where
p is is half the perimeter of the triangle
a,b,c are the lengths of the sides of a triangle
so
Step
<u>Find the length sides of the triangle</u>
a) <u>Find the distance AB</u>
Substitute
b) <u>Find the distance AC</u>
Substitute
c) <u>Find the distance BC</u>
Substitute
Step
<u>Find the perimeter of the triangle</u>
<u>Find the half of the perimeter </u>
Step
<u>Find the area of the triangle</u>
therefore
<u>the answer is the option </u>
a) 1.65 mi^2.