Answer:
otterbox costs $95; beats costs $210
Step-by-step explanation:
x = otterbox y = beats
4x + 2y = 800 y = 2x + 20
4x + 2(2x + 20) = 800
4x + 4x +40 = 800
8x + 40 = 800
8x = 800 - 40
8x = 760
x = 760 / 8
x = 95 Otterbox costs $95 each
4x + 2y = 800
4(95) + 2y = 800
380 + 2y = 800
2y = 800 - 380
2y = 420
y = 420 / 2
y = 210 Beats costs $210
4(95) + 2(210) = 800
380 + 420 = 800
12/x+5
x represents “a number” because it’s unknown and the + sign is because the words sum
Real numbers can be both rational and irrational.
sqrt(13) = 3.60555
sqrt(14) = 3.74166
If you're looking for a rational number, there are lots of them to choose from. Easiest is probably 3.7 = 37/10.
An irrational number in this range might be sqrt(27/2).
Hope this helps!
Answer:
Just follow the arrow or see answer in each box
Step-by-step explanation:
Answer:
x=-4,1,2+5i,2-5i
Step-by-step explanation:
Given is an algebraic expression g(x) as product of two functions.
Hence solutions will be the combined solutions of two quadratic products
I expression can be factorised as
Hence one set of solutions are
x=-4,1
Next quadratic we cannot factorize
and hence use formulae
