X,=-(5±✓25-36) ,/ 2
x={-5±✓-11)/2
x= -5/2 ± i✓11/2
Answer:
37
Step-by-step explanation:
10x40 = 400
2(39+42)+ 40 x 4 + 41 + X = 400
162 + 160 + 41 = 400 - X
400 - 363 = X
X= 37
Answer:
186 milligrams
Step-by-step explanation:
195 130
—— ——
279 X
Cross multiply
195x = 36270
——— ————
195 195
X = 186
Answer: the missing part is 45
suppose: the missing part is x
we use Thales theorem:

Step-by-step explanation:
#1. I think the answer is B because when you estimate, round 328.9 to 329 and 7 3/4 to 8. Divide 329 by 8 which is 41.125 which is closest to 40.
#2. 25% because 25% times 80 is 20.