Answer:
x=30
Step-by-step explanation:
1 / 2 ( x + 6) = 18
Distribute
1/2x +3 = 18
Subtract 3 from each side
1/2x +3-3 = 18-3
1/2x = 15
Multiply each side by 2
1/2x*2 =15*2
x = 30
Answer:
Option C
Step-by-step explanation:
n = 81
s2 = 625
H0: σ2 = 500
Ha: σ2 ≠ 500
Test Statistics X^2 = (n-1)s^2/ σ2 = (81-1)*625/500
X^2 = 100
P value = 0.0646 for degree of freedom = 81-1 = 80
And X^2 = 100
At 95% confidence interval
Alpha = 0.05 , p value = 0.0646
p < alpha, we will reject the null hypothesis
At 95% confidence, the null hypothesis
Answer:
B
Step-by-step explanation:
I'm unsure because the image is a bit blurry but the x-intercept is probably -10,0. The x -intercepts are x -values for which the function has a value of zero: f(x)=0 f ( x ) = 0 . So with plain logic, the numerator will be 0.
Hopefully, this helps!
Answer: B
Step-by-step explanation:
Trust
The value of x given that the sum of exterior angle is 360 is 27
<h3 /><h3>Sum of exterior angle of a pentagon </h3>
Sum of exterior angle of a pentagon is 360°. Taking the sum of the angles and equating to 360 degrees, we will have:
2x - 20 + 2x + 50 + 3x + 10 + 3x + 50 = 360
Collect the like terms
10x + 90 = 360
Subtract 90 from both sides
10x + 90 - 90 = 360 - 90
10x = 270
x = 27
Hence the value of x given that the sum of exterior angle is 360 is 27
Learn more on exterior angles here: brainly.com/question/2546141
#SPJ1
