The coefficients are -7, 8, -3, 1, and -9
Answer:
Given 7b²-21b-273=7, the solutions are x1 = 8 and x2 = -5.
Step-by-step explanation:
Given 7b²-21b-273=7, first you need to equal zero. So
7b²-21b-273-7=0 ⇒ 7b²-21b-280 = 0
The secon step is to find the solutions applying Bhaskara´s formula x = (-b ± √(b²-4×a×c))/2×a
Where a=7, b= -21 and c= -280
After you identified each term, you have to replace it on the formula so....
x = (21 ± √(21² - 4×7×(-280)))/2×7 ⇒ x = (21 ± √(441 + 7840))/14 ⇒ x = (21 ± √8281)/14
Then you will obtain two values for x, called x1 = 8 and x2=-5.
Answer:
73.4
Step-by-step explanation:
When they ask for the nearest tenth you check the hundreth, it its 5 or ore than you increase the tenth
Answer: D
Step-by-step explanation:
A P E X
Answer:
x = 1
Step-by-step explanation:
Axis of symmetry is a line which divides an object into two equal halves giving it exactly like a mirror shape.
Here a line of x = 1 can be drawn to separate the figure into equal halves.
