Let a and b = the numbers we must find.
a + 2b = 5.....Equation A
2a + b = 13.......Equation B
We have a system of equations in two variables.
I will solve A for little a.
a + 2b = 5
a = 5 - 2b
Now I will plug 5 - 2b for a in B.
2(5 - 2b) + b = 13
10 - 4b + b = 13
-3b = 3
b = -1
To find a, replace b with -1 in EITHER A or B.
I will use Equation A.
a + 2b = 5
a + 2(-1) = 5
a - 2 = 5
a = 7
The two numbers are -1 and 7.
Understand?
An incident at the Gulf of Tonkin, off the eastern coast of Vietnam, became the justification for increasing the level of U.S. involvement in the warin Vietnam during the Johnson administration. The United sates of America wanted the rebels to sign a peace agreement and end the war. I hope the answer has come to your help.
Answer:
0.3 or 30
Step-by-step explanation:
Unknown if that is right but hopefully it is correct. :)
Answer:
see explanation
Step-by-step explanation:
The axis of symmetry is at the midpoint of the zeros
To find the zeros equate y to 0, that is
x² - 2x = 0 ← take out a common factor x
x(x - 2) = 0
equate each factor to zero and solve for x
x = 0
x - 2 = 0 ⇒ x = 2
x = ⇒ x = 1 ← equation of axis of symmetry
The vertex lies on the axis of symmetry with x-coordinate = 1
Substitute x = 1 into the equation for corresponding value of y
x = 1 : y = 1² - 2(1) = 1 - 2 = - 1
vertex = (1, - 1)
Answer:
-5
Step-by-step explanation:
What is the slope of the line represented by the equation y = – – 5x
The equation of the line is given in slope-intercept form. The slope is simply the coefficient of x in the equation.
The slope of the line is thus -5