Ok. So she wants to advertise that there are 100 different dolls available. If she adds another category, then at most she already had 99 different types. If I'm right (don't take my word for it) but the minimum she would have to have is one. <span />
The first step to solve this problem is to represent
variables for the width and the length:
Let w = width of the rectangle
2w – 1 = length
of the rectangle
The formula to compute for the area of the rectangle is:
A = LW
Substituting the values and variables to the formula:
28 = w (2w – 1)
2w^2 – w = 28
2w^2 – w – 28 = 0
Solve the quadratic equation:
(2w + 7)(w – 4) = 0
w = -7/2 or w = 4
You cannot use the -7/2 because there is no negative
measurement.
W = 4 feet
L = 2(4) – 1 = 7 feet
Therefore the dimension of the rectangle is 4 feet by 7
feet.
I'm certain up until the reflection. after that there's some guess work just fyi
Answer:
B. 0.72
Step-by-step explanation:
In order to find the answer we need to use the following formula:
where:
a, b, c are the length of the sides and
the angle, so:



In conclusion,
, so the answer is B.
Answer:
1.
Step-by-step explanation:
7 * t = 7t
7 * 2 = 14
7(t+2) = 7t + 14