Answer:
C. 6
Step-by-step explanation:
Answer: C) 6
Step-by-step explanation: usatestprep approved
Answer:
therefore, x is 71 degrees
Step-by-step explanation:
we know that the exterior angle is 142 degrees.
we also know that we have to find x, which is labeled two times as an interior triangle (in the same triangle), so they must be the same degree.
there are different ways to solve this but the easiest way is this:
exterior angle = opposite interior angle 1 + opposite interior angle 2
142 degrees = x + x
142 degrees = 2x
142/2 = x
x = 71
therefore, x is 71 degrees
The three consecutive integers that add up to 450 are 149, 150, and 151.
The consecutive numbers are those numbers that follow each other continuously in the order from smallest to largest numbers.
Given that the sum of three consecutive even numbers is 450
We need to find the 3rd number of the integers.
Now assume the 3 consecutive integers are x, (x+1) and (x+2)
Therefore, x+(x+1)+(x+2)= 450
Combine the like terms;
3x+3= 450
X=149
Thus the second number is 149 + 1 and the third number is 149 + 2.
Hence, the 3rd number of the integers would be 151.
Learn more about the consecutive whole numbers;
#SPJ2
Step-by-step explanation:
Which means that the first number is 149, the second number is 149 + 1 and the third number is 149 + 2. Therefore, three consecutive integers that add up to 450 are 149, 150, and 151. We know our answer is correct because 149 + 150 + 151 equals 450 as displayed above.
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12 = x^2 + 6x
Answer: x= 1.6 and -7.6
Step-by-step explanation:
Given the equation 12 = x²+6x
Firstly, we will equate the equation to zero by taking 12 to other side to give;
x²+6x-12 = 0
Using the general formula to solve
If ax²+bx+c=0
x = -b+-√b²-4ac/2a
From the equation given
a = 1 b =6, c=-12
x = -6+-√6²-4(1)(-12)/2(1)
x = -6+-√37+48/2
x = -6+-√85/2
x = -6+-9.2/2
x = -6+9.2/2 and -6-9.2/2
x = 3.2/2 and -15.2/2
x = 1.6 and -7.6