<span>A counterexample is an example which disproves a proposition.
Given that Evelia conjectured that <A and <B are acute angles. Since, <A is congruent to <B, a counterexample to the conjecture is two equal angles which are not acute angles.
</span><span>An acute angle is an angle smaller than a right angle (it is less than 90 degrees and more than 0 degrees).
Therefore, the statement that is a counterexample to Evelia's conjecture is </span><span><span>m∠A=126°</span> and <span>m∠B=126°</span></span>
Answer:
t = –3.382
Step-by-step explanation:
Claim: FICO credit scores are greater than 675
Thus, x = 675
We are given:
Sample size = n = 50
Sample Mean = u = 719
Sample Standard deviation = s = 92
The formula to find the t-statistic is:
Using the above values, we get:
Thus, the value of test statistic is -3.382. So 3rd option gives the correct answer.
Answer:
ABC = 30
Step-by-step explanation:
The two angles are complementary so they add to 90 degrees
2x+14 + x+7 = 90
Combine like terms
3x+21 = 90
Subtract 21 from each side
3x+21-21 = 90-21
3x = 69
Divide by 3
3x/3 = 69/3
x = 23
ABC = x+7 = 23+7 = 30
Answer: -3
Step-by-step explanation:
If you plug in the numbers, the equation would look like: 2+2(-2.5)
Multiply 2 by -2.5 and you'll get -5 as your product. Add 2 and -5 together to get the sum of -3.
About three feet is the height of a chair
