Answer:
Suppose a crew at an unloading dock can unload 3 trucks per hour and have already unloaded 17 trucks. Which equation can be used to model the number of trucks the crew unloads after h hours?
A. y = 3h = 17
B. y = 3h + 17
C. y = 17h – 3
<u>D. y = 17h + 3</u>
Step-by-step explanation:
Answer:
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Step-by-step explanation:
|AD|=(3i-1j)-(-3i-0j)=3i-1j+3i+0j=6i-1j
|BA|=(-3i-0j)-(-1i+3j)=-3i-0j+1i-3j=-2i-3j
Area =|AD|x|BA|
= i j k
6 -1 0
-2 -3 0
= -1 0 i - 6 0 j + 6 -1 k
-3 0 -2 0 -2 -3
= 0 i - 0 j + (-18-2)k = -20 k
√(-20)² =20