Since he said that ABC = FED = 12
Meaning (A-B/B-C/A-C) dimensions
A-B = 12
B-C = 12
A-C = 12
FED dimensions (E-D/D-F/E-F) = 12
E-D = 12
D-F = 12
E-F = 12
Since A = 25 & F = 4X = 12
A = F (bcz ABC = FED)
Finding value of (X):
Since (A-C) = (F-D) = 12 (ABC = FED)
4X = 12
X = 12/4
X = 3 ... The answer is C)
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Finding the value of (y):
25 = (4y - 3)
adding (+3) to both sides of equation
25 + (+3) = (4y - 3) + 3
28 = 4y + 3 - 3
+3 -3 = 0
28 = 4y + 0
28 = 4y
So, y = 28/4
y = 7 ... The answer is B)
Here you go, good luck!
Answer:
Step-by-step explanation:
If COP and TOD are vertical angles, then they are equal to each other because vertical angles are equal.
m COP = m TOD
Given
COP = 11x - 17
TOD = 9x + 11.
Substitute:
11x-17 = 9x+11
11x-9x = 11+17
2x = 28
x = 28/2
x = 14
Get <COD
<COP = 11(14)-17
<COP = 154-17
<COP = 137
<COD = 180-<COP
<COD = 180-137
<COD = 43°
Similarly:
<POT = 180 - <TOD
<POT = 180 - [9(14)+11]
<POT = 180 - 137
<POT = 43°
Answer: 103.75
Step-by-step explanation: hope this helps!
-13x+14=13x-12
Hope this helps!
Answer:
Right tailed test
Step-by-step explanation:
The null hypothesis is:
The alternative hypothesis is:
This is a right-tailed test since the alternative hypothesis is greater than 30
Suppose the level of significance is 0.05 and we are given a p-value less than 0.05.
Then, we reject the null hypothesis.