The value of x is B. 70°.
The angles of a triangle always add up to 180°. First, you must subtract 40 from 180 to know the sum of the remaining angles.
180 - 40 = 140 ⇒ The sum of the remaining angles is 140°
The Isosceles triangle theorem states that if two sides of a triangle are congruent, then the angles opposite those sides are congruent. Since the angle measurements of the remaining two angles are congruent, to find the value of x, you have to divide the sum of the remaining angles by 2.
140/02 = 70 ⇒ The value of x is 70°
Answer: correct: B. If the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant.
Step-by-step explanation:
the test of the statistical p helps us to find the probability that a statistical value occurs in the null hypothesis, in the exercise we obtain a value of p of 0.21, we assume that for it to have statistical significance the value must be less than 0.05 which is constant, if this result is higher it indicates that there is no statistically significant evidence
The product of (x1)^2 is 20
Answer:
C.
Step-by-step explanation: