Answer:
Step-by-step explanation:
1) Let width = x
One side of the rectangle is covered by river. So only, 3 sides to be covered.
length = 100 - ( x + x) = 100 - 2x
Area of rectangle = length *width
= (100 - 2x)*x
f(x) = 100x - 2x^{2}
Rule: y=2x+3
for the input it's adding 2 each time
for the output the 0 figure is 3
To find the volume of a 3D shape, you do length times width times height. (l•w•h)
Answer:
12 feet
Step-by-step explanation:
Draw a diagram (see picture below). The tree and its shadow is one triangle, the man and its shadow is another triangle. We assume both are right triangles because people and trees stand vertical.
Create a proportion to solve. Put the missing value in a numerator.
Tree height / Tree shadow = Man height / Man shadow
Solve using cross multiplication. Multiply x by 4. Multiply 6 by 8.
4x = 48 Divide both sides by 4 to isolate x.
x = 12 Height of tree
The tree is 12 feet tall.
Answer:
k = - 50
Step-by-step explanation:
Given
k - 5 = k
Multiply through by 10 ( the LCM of 5 and 10 ) to clear the fractions
6k - 50 = 7k ( subtract 6k from both sides )
- 50 = k