The car is 1.4m (140 cm) tall and 3.5 (350 cm) long.
Take 1/10 (1:10) of each of those numbers.
The model is 14 cm tall and 35 cm long.
Answer:
72
you have to add five and thirteen to get eighteen then subtract 90 by 18 and get 72
Answer:
6 units
Step-by-step explanation:
JK + KL = JL
3x + 5x-6 = 4x+2
8x-6 = 4x+2
subtract 4x from each side to get:
4x - 6 = 2
add 6 to each side to get:
4x = 8
x = 2
JK = 3x and x=2 so JK = (3)(2) or 6
1 41/44
first change both into improper fractions
because it's division, flip the second term while changing sign from division to multiplication.
Factor by grouping.
0 = (x^3 +4x^2) +(9x +36) = x^2(x+4) +9(x+4) = (x^2+9)(x+4)
The first factor is the difference of squares (in complex numbers), so the form for factoring that can be used:
a^2 - b^2 = (a -b)(a +b)
Here, a=x, b=3i.
Then the factorization in complex numbers is
0 = (x -3i)(x +3i)(x +4)
Solutions are the values of x that make these factors be zero.
x = -4, -3i, 3i
