Combine like terms 20b + 10a - 10b + 3a
2 answers:
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Answer:
Hey!
Your answer is !
Step-by-step explanation:
Also can be written as 41/8!
HOPE THIS HELPED!
<h3>Answer: 24.5 </h3>
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Explanation:
It might help to draw it out. See the diagram below.
The base is JK which is 7 units long. I'm picking this as the base because this segment is completely horizontal.
Notice how the base JK spans from x = -3 to x = 4, which we can use subtraction and absolute value to get |J-K| = |-3-4| = 7.
The height is always perpendicular to the base. If the base is JK = 7, then the height is the vertical distance from K (or J) to L. This vertical distance is also 7 units. Subtract the y coordinates and apply absolute value. The base and height aren't always the same number.
Now we can find the area of the triangle
area = base*height/2
area = 7*7/2
area = 49/2
area = 24.5 square units
Answer:
Step-by-step explanation:
An urn contains two blue balls (denoted ) and three white balls (denoted
).
In the selection, a ball is picked and replaced.
From the attached probability tree, the possible outcomes are:
(a)If the first ball drawn is blue
Number of Outcomes =10
The probability that the first ball drawn is blue
(b)If only white balls are drawn
Number of Outcomes =9
Probability that only white balls are drawn
