Answer:
A. Z = 2 + N13
Step-by-step explanation:
Let's solve your equation step-by-step.
0=z2+4z−9
Step 1: Subtract z^2+4z-9 from both sides.
0−(z2+4z−9)=z2+4z−9−(z2+4z−9)
−z2−4z+9=0
For this equation: a=-1, b=-4, c=9
−1z2+−4z+9=0
Step 2: Use quadratic formula with a=-1, b=-4, c=9.
z=
−b±√b2−4ac
2a
z=
−(−4)±√(−4)2−4(−1)(9)
2(−1)
z=
4±√52
−2
z=−2−√13 or z=−2+√13
Answer:
perimeter: 26
area: 16 + 10 =26
perimeter: add all lengths.
area: multiply LxW
Answer: A - sin 63
Step-by-step explanation:
It depends on metric or standard.
grams: metric
pounds(lb.): standard
Answer:
By thinking logically,here's hint: there are only 4 equal sections and 4 colors,all of them equal to=
no matter what color you take,for example green is 1/4,red is 1/4 as well.Eventually the answer is:the probability of orange color is 1/4 too.
