65.8 + 13.4 = 79 .2. So the answer is c
Answer:
Greatest Common Factor: integer or variable multiplied by other integers or variables that creat a resultin product. factor x factor = product
difference of squares binomial: an expression where two perfect square terms are being subtracteda² - b² = (a+b)(a-b)quadratic: from "quad" meaning square, because the variable gets squared (like x2).
discriminant: tells you about the roots of a quadratic
general form: y = a(x - h)^2 + kstandard form: ax^2 + bx + c = 0root: a solution of an equation
zero: a value that gives you 0 for a function
x-intercept: where the graph crosses the x-axis
y-intercept: where the graph crosses the y-axis
extraneous: a solution that does not work
parabola: the graph of a quadratic
vertex: the turning point of the parabola
axis: line of reflection
translation: movement up/down and left/right of any parabola from standard position (f(x) = x2)
The basics of what you should know
Step-by-step explanation:
Can get brainiest pls
Answer:
1 3/25 m2.
Step-by-step explanation:
Let the portion of the wall painted by Jiaqi, Gwen and Patricia be denoted as X, Y and Z respectively.
Jiaqi (X):
= 4/7
Gwen (Y):
=1/2*(1 - 4/7)
= 1/2*(3/7).
= 3/14.
Patricia (Z):
=1/2*(1 - 4/7)
= 1/2*(3/7).
= 3/14.
Area of the wall painted:
Let the area of the wall painted by Gwen and Patricia be Y + Z.
The area painted by Jiaqi = 2/5 + Y + Z
Therefore,
4/7 = 2/5 + Y + Z
The ratio of portions painted by:
Jiaqi : Gwen : Patricia : Total
4 : 3/2 : 3/2 : 7
Multiple by 2,
8 : 3 : 3 : 14
= (X - (Y + Z))
8 – 3 = 5,
but, 5 units = 2/5,
Total units, 14 units = 28/25
= 1 3/25
1 3/25 m2.
