Answer:
Step-by-step explanation:
The answer will be (B) -9 because since the angles are equal, the two sides must be equal also.
Therefore
x+16=7
And then
x= 7-16
x=-9
Answer:
There is nothing given
Step-by-step explanation:
It might be whichever one has a solution that is false, such as 9=0, or something like that.
You can write three equations in the numbers of nickels (n), dime (d), and quarters (q).
n + d + q = 23 . . . . . . . there are 23 coins total
0n +d -q = 2 . . . . . . . . .there are 2 more dimes than quarters
5n +10d +25q = 250 . .the total value is $2.50
The collection includes 11 nickels, 7 dimes, and 5 quarters.
_____
I used the matrix function of my calculator to solve these equations. You can find q by subtracting from the last equation five times the sum of the first two equations.
(5n +10d +25q) -5((n +d +q) +(d -q)) = (250) -5(23 +2)
25q = 125 . . . . . . . simplify
q = 5
From the second equation,
d = q +2 = 7
And from the first,
n = 23 -5 -7 = 11
2X + (2X+10)= 34
Width is 6, Length is 11
6 x 11 is 66
Area is 66