To solve this problem, we have to set up a proportion, letting x represent the unknown height of the tree.
5 feet/8 feet = x feet/ 32 feet
To solve this equation, we have to use cross products, or the multiplication of the numerator of one fraction by the denominator of the other fraction, and setting them equal to one another.
5(32) = (8)x
When simplified, as we multiply the numbers on both sides of the equations, we get the equation:
160=8x
20=x
Therefore, if a tree's shadow is 32 feet long, the height of the tree is a) 20 feet.
Y= mx+b (I think) m is the slope, and b is the y intercept
the difference of 67.2 and 23.9 is 43.3
Answer:
Option D
Step-by-step explanation:
We have the following variable definitions:
sofas: x
pillows: y
Pillows come in pairs so we have 2y pillows
The total order for all the possible combinations is:
![x+2y](https://tex.z-dn.net/?f=x%2B2y)
The wholesaler requires a minimum of 4 items in each order from its retail customers. This means the retailers can order 4 or more.
Therefore the inequality is:
![x+2y\ge4](https://tex.z-dn.net/?f=x%2B2y%5Cge4)
To graph this inequality, we graph the corresponding linear equation,
with a solid line and shade above.
The correct choice is D
See attachment
Answer:
x = 2 and x = 4
Step-by-step explanation:
The solutions are the points of intersection. Those points as marked on the graph give both the x-value (2 or 4) and the associated function value (2 or -22).
The solution to the equation f(x) = g(x) doesn't care what the function value is (except that the two function values are equal). The solution is the x-value that makes those function values equal.