Answer: ~5
Step-by-step explanation:
It's been awhile for me but I think you do sin=opp/hyp
sin(45)=3sqrt(2)/x
x = 3sqrt(2)/sin(45) = (approx) 5
42. they’re across from each other
Answer:
n = -6 or n = 4.
Step-by-step explanation:
-3 | -8n – 8 | = -120
Divide both sides by -3:
| -8n – 8 | = 40
This gives us 2 equations because the expression in the absolute signs can be positive or negative:
-8n - 8 = 40
so -8n = 48
n = -6.
and
-8n - 8 = -40
-8n = -32
n = 4.
There is an app that could help u out a lot is called MathPapa
(3-4x)(8+3x)
= (3+-4x)(8+3x)
= (3)(8)+(3)(3x)+(-4x)(8)+(-4x)(3x)
= 24+9x-32x-12x^2
= -12x^2-23x+24
