9514 1404 393
Answer:
∠B = 41°
Step-by-step explanation:
<u>Step 1</u>: Recognize that ∠B and ∠A are "remote interior angles" with respect to the exterior angle at C. Hence their sum will be equal to the measure of the exterior angle.
<u>Step 2</u>. Compute angle B as the difference between the exterior angle at C and the interior angle at A:
113° - 72° = ∠B = 41°
Hello :
v . w = <span>| | v | | × </span><span>| | w | | cos(</span><span>θ) ....(1)
v(2,0,1) w(0,1,-3)
</span>v . w = (2)(0)+(0)(1)+(1)(-3) = - 3
| | v | | = √((2)²+(0)²+(1)²) = <span>√5
</span>| | w | = √((0)²+(1)²+(-3)²) = √10
by (1) :
cos(θ) = (v . w ) / | | v | | × | | w | |
cos(θ) = = - 3/√50
θ =..... calculate by 2ind function ( calculator)
Answer:44444
Step-by-step explanation:
Answer:
5.66 units
Step-by-step explanation:
base: 8-4 = 4
rise: -3-(-)7 = 4
4^2+4^2 = d^2
d^2 = 32
d=5.66 units
Answer:
(x-1)(x-2)(x-3)
Step-by-step explanation:
hy vọng nó giúp
