Answer:
-18
Step-by-step explanation:
2x²-7xy+3y²
2(3²)-7(3)(4)+3(4²)
2(9)-84+3(16)
18-84+48
18+48-84
-18
Answer:

Step-by-step explanation:
<h3><u>Given equation:</u></h3>
3x + 2 = 0
Subtract 2 to both sides
3x = 0 - 2
3x = -2
Divide 3 to both sides
x = -2/3
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A boy stands 1 meter away from a lamppost. He is 1.8 meters tall and casts a shadow 2 meters long in the light from the lamp
The diagram is attached below using the given information
We have two similar triangle
Triangle ACD is similar to triangle ABE. So the sides are in proportional

AC = AB + BC = 3m

2x = 1.8 * 3 (cross multiply)
2x = 5.4
Divide by 2 on both sides
x = 2.7
Height of Lamppost is 2.7 meter
Answer: 35
Step-by-step explanation: formula; LxW divided by 2 7x10= 70 70 divided by 2 equals 35
Answer:
(5/11)(1/10)
Step-by-step explanation:
probability of picking blue = 5/11
Now there are only 10 pencils
probability of picking yellow = 1/10
probability of picking blue, then yellow = (5/11)(1/10) = 1/22