A. For the first two questions, there are 2 choices, true and false. The three questions will have 3 choices. The number of ways that student can complete the test is,
n = 2 x 2 x 3 x 3 x 3
n = 108
Answer: C. 108
B. From 0 to 9, there are 10 digits. There are also 26 and as per given, there are 4 symbols. The number of ways that the code can be made is,
n = 10 x 9 x 26 x 25 x 4
n = 234,000
Answer: C. 234,000
C. In the word, EXPERIMENT, there are 10 letters. Three of which are letter Es. The number of ways that the letters can be arranged is,
n = 10!/3!
n = 604,800
Answer: D. 604,800
D. If the arrangement is not important and that only the combination is important, the number of ways that the instructor can send 4 out of the 11 is,
n = 11C4 = 330
Answer: A. 330
E. If only one of the five keys can start the car then, the probability that the chosen key can start the car is equal to the ratio of the number of key to the total number of keys.
n = (1/5)(100%) = 20%
Answer: C. 20%
F. The events of picking the winning card and picking or choosing the losing card are complementary events such that the sum of their probabilities should be equal to 1 or 100%.
P = 100 - (2.9%)
P = 97.1%
Answer: D. 97.1%
Answer:
9.4 gallons of gas
Step-by-step explanation:
4×2.35=9.4
Answer:
See below.
Step-by-step explanation:
In all triangles, the three interior angles will add up to 180°. Therefore:
Remember that the little square means a right angle.
Now, solve for <em>x</em>.
Now, plug <em>x </em>back into the equations to find each angle:
1)
2)
3)
Answer:
5 < x < 13
Step-by-step explanation:
9+4 > x
4 + x > 9
Answer: Sue's change will be $57.20
Step-by-step explanation:
Sue bought 2 pairs of jeans and a belt for $6.95.
Sue also paid a tax of $5.85 for the items.
Sue gave the cashier $70, her change will therefore be:
= 70 - 6.95 - 5.85
= $57.20