Answer:
12 sqrt(2)
Step-by-step explanation:
Givens
a = 12 cm
b = 12 cm
c = ??
The triangle is isosceles with 1 right angle and 2 45 degree angles.
Formula
c^2 = a^2 + b^2
c^2 = 12^2 + 12^2
c^2 = 144 + 144
c^2 = 288
c^2 = 144 * 2
c = sqrt(144) * sqrt(2)
c = 12 * sqrt(2)
The answer isn't there. 12*sqrt(2) is the correct answer, 12sqrt(3).
Was this just a typo of some kind.
I think it should be B but I’m probably wrong so risk it if you want sorry
YAY I KNOW HOW TO DO THIS OKAY
so 90 degrees minus 49 degrees equals 41 degrees
then 41= (x+3) then you subtract 3
so x=38
Answer:
270
Step-by-step explanation:
you will times 6 by 45
Answer:
-1.683
Step-by-step explanation:
Given :
Group 1 :
x1 = 667 ; n1 = 10 ; s1 = 20
Group 2 :
x2 = 679 ; n2 = 14 ; s2 = 15
The test statistic assuming equal variance :
x1 - x2 / √[Sp² * (1/n1 + 1/n2)]
sp² = [(n1 - 1)*s1² + (n2 - 1)*s2²] ÷ (n1 + n2 - 2)
Sp² = [(10 - 1)*20² + (14 - 1)*15²] = 296.59
Test statistic =
(667 - 679)/ √[296.59 * (1/10 + 1/14)]
-12 / 7.1304978
Test statistic = - 1.682
