Answer: x^2 + 6x – 7 = 0
The solutions x = -7 and x = 1 can be written as:
(x+7)(x-1) = 0
(Because you find the solution values for x from the brackets e.g (x+7) to get x=-7, dunno how to explain it better sry)
From which you can expand the brackets and find the answer in quadratic form.
(x+7)(x-1) = 0
Expand the brackets
x^2 + 7x – x – 7 = 0
x^2 + 6x – 7 = 0
Answer:
9
Step-by-step explanation:
Answer:
20 visits
Step-by-step explanation:
The club that charges $40 more for enrollment charges $2 less per visit. The savings on visits is equal to the extra enrollment charge when the number of visits is 40/2 = 20.
For 20 visits, the cost at both clubs is the same.
__
If you let v represent the number of visits, ...
A = 60 +2v . . . . cost at club A
B = 20 +4v . . . . cost at club B
A = B ⇒ 60 +2v = 20 +4v . . . . . . costs are the same for "v" visits
40 = 2v . . . . . . . subtract 20+2v from both sides
40/2 = v = 20 . . . . . . same as "word solution" above
This is showing that the box on a graph. the coordinate are the numbers at the corners of the square. you need to find the length of each side. when you find the measurements, you just need to multiply the length and width together to get the area.
the answer is 600 square yards
Answer:
1.8 x 
Step-by-step explanation:
( 9 x 10²) (2 x 
)
= (9)(2) x 
=18 x 
= 1.8 x
