Answer:
9x² - 42x + 49
Step-by-step explanation:
Given
(3x - 7)² = (3x - 7)(3x - 7)
Each term in the second factor is multiplied by each term in the first factor, that is
3x(3x - 7) - 7(3x - 7) ← distribute both parenthesis
9x² - 21x - 21x + 49 ← collect like terms
= 9x² - 42x + 49
Solve the proportion using cross products. 29 miles/58 hours = 10 miles/n hours
What you do here is replace is the given x value to find the y one
Like for the first box the y (top-to-down) would be found using y=3(-2)+4 which is gives y=-2
Applying the same for each in order:
(-2,-2)
(-1,0)
(0,4)
(1,7)
(2,10)
Ordered pairs are typed in (x,y) format like the answers I gave above
Answer:
Step-by-step explanation:
[tex]\Delta C=2\pi(r_2-r_1)\\ \\ \Delta C=2\pi(6400001-6400000)\\ \\ \Delta C=2\pi\\ \\ \Delta C\approx 6.283m\\ \\ \text{So taking off 6 meters is reasonable.}[/tex}
Answer:
C
Step-by-step explanation:
Answer: 121
