Answer:
D. -3x + 18
Step-by-step explanation:
3x - 9y = 18
y = 1/3 x - 2 ... x intercept 0 = 1/3x -2 x=6
perpendicular line slope: - 1/(1/3) = -3 and (6,0) 0n the line
equation: (y-0)/(x-6) = -3
y = -3x +18
Answer:
the Diagonal is 41 units
Step-by-step explanation:
Since the sides of a rectangle, to be a rectangle, meet at 90° we use Pythagorean Theorem a² + b² = c²
Width and Length are the legs and the diagonal is the hypotenuse
9² + 40² = c²
81 + 1600 = c²
1681 = c²
√1681 = √c²
41 = c
A.
![1hr \: 15min = 75min](https://tex.z-dn.net/?f=1hr%20%5C%3A%2015min%20%3D%2075min)
![c = 0.22t = 0.22 \times 75 = 16.5](https://tex.z-dn.net/?f=c%20%3D%200.22t%20%3D%200.22%20%5Ctimes%2075%20%3D%2016.5)
cost is $16.50
B.
![26.40 = 0.22 \times t](https://tex.z-dn.net/?f=26.40%20%3D%200.22%20%5Ctimes%20t)
rearrange to solve for t:
![t = \frac{26.40}{0.22} = 120min](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B26.40%7D%7B0.22%7D%20%3D%20120min)
C. This is the same as part B, only the rate changed
![t = \frac{26.40}{0.25} = 105.6min](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B26.40%7D%7B0.25%7D%20%3D%20105.6min)
they ask for the greatest number of minutes, so we round down (take the floor of the value).
the answer is 105 minutes.
Step-by-step explanation:
4x2+8x−3=0
For this equation: a=4, b=8, c=-3
4x2+8x+−3=0
Step 1: Use quadratic formula with a=4, b=8, c=-3.
x=
−b±√b2−4ac
2a
x= −(8)±√(8)2−4(4)(−3)
2(4)
x= −8±√112
8 x=−1+
1 2 √7 or x=−1+
−1 2 √7
Answer: x=−1+
1 2√7 or x=−1+
−1 2 √7
G(x)=-3/7(2)x is the actual answer, I'm doing the same stuff