Answer:
20z-6
Step-by-step explanation:
Distribute the 2 to each of the numbers inside the parentheses.
10z and -3 are the two numbers, each multiplied by 2 is 20z and -6. No further simplification is possible
Answer:
B & D
Step-by-step explanation:
The quadratic formula can be used to solve for x for any quadratic. Recall a quadratic is any function whose highest exponent known as degree is 2. Looking at the answer selections, A has one term with exponent 3. This isn't possible in the formula. Looking at answer C, the term with exponent 2 has the same coefficient on each side of the equal sign. When it is rearranged these will cancel out no exponent of 2 will be in the equation anymore. Only B & D work after being rearranged and simplified
Answer:
Step-by-step explanation:
perimeter =76 m
L=3+w
w
2L+2W=76
2(3+W)+2W=76
6+2w+2w=76
4w=70
w=70/4
w=17.50
L=17.50+3=20.50
A=L*W=17.50*20.50=358.75m^2
