Answer: 35
Step-by-step explanation:
7 x 5 is 35 and even though there are negatives 2 negatives form a positive
Answer
Find out how many eighty fours are in 672.
To prove
Let us assume that the number of the 84 be x .
As given in the equation
Total values given in the question be 672.
Than the equation becomes
84 × x = 672
Simplify the above equation
84x = 672
x = 8
Therefore the Numbers of eighty fours in 672 is 8 .
Answer:
(
x
+
2
)
(
8
+
y
)
Step-by-step explanation:
Answer:
C. If 75% of Americans still favor mandatory testing this year, then there is a 3% chance that poll results will show 72% or fewer with this opinion.
Step-by-step explanation:
Significance level or alpha level is the probability of rejecting the null hypothesis when null hypothesis is true. It is considered as a probability of making a wrong decision. It is a statistical test which determines probability of type I error. If the obtained probability is equal of less than critical probability value then reject the null hypothesis. In this question the sample of 1000 Americans is under test. It is the result of the poll that 75% still favor mandatory testing.
Answer:
The angle is 50 degrees.
Step-by-step explanation:
You'll see, the angle that is on the left of the 70° angle has to be 110°, because a straight line has 180°.
Now, the inner angles of a triangle have to sum 180°. So if the lower angle is 110° (because you just calculated it), and the upper angle is 20°, the third angle is:
180° = 110° + 20° + x
180° = 130° + x
180° - 130° = x
50° = x
Now this third angle is on the bottom left part of the triagle, and it's 50°. It also opposite to the angle 1, which is the one you want to calculate. Because they are opposites, they are identical, meaning that they both are 50°. This is due to a geometrical rule.
