Answer:
2a +b =5
Step-by-step explanation:
4a + 2b = 10
Divide each side by 2
4a/2 +2b/2 = 10/2
2a +b =5
<h3>Answer: x = 12</h3>
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Work Shown:
Multiply both sides by the LCD 12 to clear out the fractions. Afterward, solve for x
x/2 - x/3 = x/4 - 1
12(x/2 - x/3) = 12(x/4 - 1)
12(x/2) + 12(-x/3) = 12(x/4) + 12(-1) ... distribute
6x - 4x = 3x - 12
2x = 3x - 12
2x-3x = 3x - 12-3x ... subtract 3x from both sides
-x = -12
x = 12
Answer:
6
Step-by-step explanation:
since it's a right triangle you can use the Pythagorean Theorem
2.7² + b² = 6.5²
7.29 + b² = 42.25
b² = 34.96
b = 
which equals 6 when rounded to the nearest tenth
We are given the data 4 8 5 12 3 9 5 2 and is asked for the mean and standard deviation of the numbers or data set. The mean is the average equal to 6. The standard deviation reveals the spread of the data. In this case, the standard deviation is equal to 3.16
MBOA=360-250=110, so mBDA= half of mBOA=55
mBCA=180-mBOA=180-110=70
mBDA=55 and mBCA=70
