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Important usd
Answer:
4.05d+0.1i−4.2
Step-by-step explanation:
Let's simplify step-by-step.
1.6i+
3/
4
d−3(
1
/2
i−1.1d)−4.2
Distribute:
=1.6i+
3/
4
d+(−3)(
1/
2
i)+(−3)(−1.1d)+−4.2
=1.6i+
3/
4
d+
−3/
2
i+3.3d+−4.2
Combine Like Terms:
=1.6i+
3/
4
d+
−3/
2
i+3.3d+−4.2
=(
3/
4
d+3.3d)+(1.6i+
−3/
2
i)+(−4.2)
=4.05d+0.1i+−4.2
Hope it helped!
Answer:
b
Step-by-step explanation:
an acute angle is an angle that is smaller than 90 degrees.
if the angle is exactly 90 degrees, then it is a right angle.
anything larger than 90 degrees is considered to be an obtuse angle.
Hope this helps for other questions like this as well!
Answer:
Step-by-step explanation:
5.007 x 10^-5
