You tipped 20% if you left a 1$ tip from a 5$ lunch.
we know that
If the triangle has a
degree angle and a
degree angle, then the third angle is a
degree angle
so
is a right triangle


<u>Statements</u>
<u>A. The second-longest side is twice as long as the shortest side.</u>
we know that
the ratio between the second-longest side and the shortest side is

therefore
the statement A is False
<u>B. The longest side is twice as long as the shortest side</u>
we know that
the ratio between the longest side and the shortest side is

therefore
the statement B is True
<u>C. Two sides of the triangle have the same length</u>
The statement C is False, because is not an isosceles triangle (45-90-45)
<u>D. The longest side is square root 3 times as long as the shorted side</u>
we know that
the ratio between the longest side and the shortest side is

The longest side is twice as long as the shortest side
therefore
The statement case D is False
<u>the answer is the option</u>
B. The longest side is twice as long as the shortest side
Answer:
Step-by-step explanation:
x + y = 4 ---------------(i)
x = 4-y
7x + 9y = 42 -----------(ii)
Plug in x = 4-y in equ (ii)
7*(4 - y) + 9y = 42
28 - 7y +9y = 42
28 + 2y = 42
2y = 42 - 28
2y = 14
y = 14/2
y = 7
x = 4 - y
x = 4 - 7
x = -3
Okay. First simplify all the like terms (all the coefficients and all the variables).
When simplified it should give you:
5x-11
A
sorry if its wrong looks reasonable