Answer:
6.57343137182
Step-by-step explanation:
The triangle is a right triangle
1. Use Pythagorean theorem
5.5² + 3.6² = c²
2. Solve
√ 43.21
The cosine repeats itself every 360 degrees, and it mirrors at 0 and 180 degrees. It inverts around 90 and 270.
So without using a calculator, you can tell that:
cos(520)=cos(520-360)=cos(160)
cos(160) = cos(180-20) = cos(180+20) = cos(200)
cos(160) is NOT equal to cos(20), it would be -cos(20).
cos(160) = -cos(20) = -cos(-20)
So C is the only one unequal.
Answer:
60
Step-by-step explanation:
If 478 out of 534 parking spaces are taken, then you will be <u>subtracting</u>. When you subtract 534 and 478 (534-478), then you get 54. Remember 5 and up round to 10. 4 and below round to 0. So 56 rounds to 60 because 6 is greater than 5.
Hope it helps!
167r1
3/ 505
3
--------
20
18
____
25
24
_____
1 remainder
167r1
3/ 505
3
--------
20
18
____
25
24
_____
1 remainder
The events of rolling a 3 or a 5 are disjoint, so
.
Each face has a
probability of occurring, so the event of interest occurs with probability
. The number of times a 3 or 5 is rolled across 288 trials has a binomial distribution,
.
Recall that the expected value of a binomial distribution
is
. So in this experiment, we should expect to witness approximately
instances of rolling a 3 or a 5.
