Answer:
19.2 in
Step-by-step explanation:
Set up a proportion to solve this...
4 inches is to 25 miles as x inches is to 120 miles
4/25 = x/120 now cross multiply to and solve for x
480 = 25x
480/25 = x
19.2 = x
Answer:
because MATH is a rhombus
=> MA = MH = HT = AT
=> y + 10 = 5y - 6
⇔ 4y = 16
⇔ y = 4
with y = 4 => MH = 4 + 10 = 14
but MH = MA
=> MA = 14
Step-by-step explanation:
y = x^2 + 5x -3
y-x =2
Replace y in the second equation with the first one:
x^2 + 5x -3 - x = 2
Simplify by combining like terms:
x^2 + 4x -3 = 2
Subtract 2 from both sides:
x^2 + 4x -5 = 0
Fctor the polynomial:
(x-1) (x+5) = 0
Solve for both X's:
x = 1 and x = -5
Now replace x in the second equation with both value and solve for y:
y -1 =2, y = 3
y - -5 =2, y +5 = 2, y = -3
Now combine the sets of answers:
(1,3) and (-5,-3)
