Answer:
1 cm = 20 km
so 3.5 cm would equal : 3.5 * 20 = 70 km
hope it helps ;)
Step-by-step explanation:
D a rhombus because it dosnt always have congruent sides
2x+3 is the answer.................................................................
C your welcome have a nice day
Answer:
Step-by-step explanation:
Use FOIL method
(2 - 7x)(-x + 2) = 2*(-x) + 2*2 + (-7x)*(-x) + (-7x)*2
= -2x + 4 + 7x² - 14x {Combine like terms}
= 7x² - 14x - 2x + 4
= 7x² - 16x + 4
x²(2-7x)(-x + 2)= x² (7x² - 16x + 4)
= x²*7x² - 16x * x² + 4x²
![7x^{2+2} -16x^{1+2} + 4x^{2}\\\\= 7x^{4} - 16x^{3} + 4x^{2}](https://tex.z-dn.net/?f=7x%5E%7B2%2B2%7D%20-16x%5E%7B1%2B2%7D%20%2B%204x%5E%7B2%7D%5C%5C%5C%5C%3D%207x%5E%7B4%7D%20-%2016x%5E%7B3%7D%20%2B%204x%5E%7B2%7D)