Answer:
C. 193.1 ![m^2](https://tex.z-dn.net/?f=m%5E2)
Step-by-step explanation:
<em><u>The formula for finding the area of a right trapezoid is:</u></em>
A = ![\frac{1}{2} (b_{1 } +b_{2})h](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%28b_%7B1%20%7D%20%2Bb_%7B2%7D%29h)
A = ![\frac{1}{2} (15.3+19.5)(11.1)](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%2815.3%2B19.5%29%2811.1%29)
A = 193.1
Every point on a line satisfies the equation of that line.
If two lines intersect at one point, that point is a point on both lines, so it must satisfy both lines. Since two different lines can intersect at most at one point, that point is the only point that makes the two equations true.
Answer:
Step-by-step explanation:
Algebraic expression: 4x - 2y
Algebraic equation: 4x - 2y = 15
Term(s): 4x, -2y
Coefficient(s); 4, -2
Constant(s); no constants
Variable(s): x, y
expressions don't have an equal sign, equations do
terms are separated by operational signs (multiplication, division, addition, subtraction)
Coefficients are the numbers before variables
Constants aren't variables
Variables are letters
Suppose, initially the ladder is so close that height of the ladder, which is 10 m to the point at which its upper end has reached.
When we pull the bottom of the ladder to such a place that it has come down by 7 m and its upper end is now 3 m from the ground. If we take the base y m, then
Using Pythagorus theorem,
y2 = 10^2 - 3^2 = 100 - 9 = 91
y = 9.54 m
The speed by which ladder was pulled was 2 m/min
So time taken to cover 9.54 m woulds be 4.77 min
As the ladder has come down by 7 m in 4.77 min, its speed for coming down was 7/4.77 = 1.47 m/min