B. 12k^4 - 16k^3 + 9k^2
C. -12k^3 + 20k
D. k^4 + 9k^2
Answer:
you do subtraction than the plus and you got your answer!
Hope this helps :)
Answer:
7h - 15h + 40 = -72
-8h + 40 = -72
take +40 on the other side of equation
-8h = -72-40
-8h = -112
h = -112/-8
h = 14
Step-by-step explanation:
The percentage of coach passengers who did not check their bags will be 43.82 %.
percentage, a relative value indicating hundredth parts of any quantity.
It is given that the total number of passengers is, 162 of which 71 bags didn't check while 91 bags got checked.
We have to find the percentage of coach passengers who did not check their bags.
It is found by dividing the total number of passenger bags not checked by the total number of passengers.
=71 / 162 × 100
=43.82 %
The percentage of coach passengers who did not check their bags will be 43.82 %.
Hence, the percentage of coachpassengers who did not check their bags will be 43.82 %.
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The two-way table below displays information about passengers on a commercial flight.
Passenger Data
First Class
Coach
Checked Bags
10
81
Did Not Check Bags
14
57
What percentage of coach passengers did not check bags? Round to the nearest tenth.
35.2%
41.3%
70.4%
80.3%
To find the % of something simply turn your % to a decimal, then times it by the number you want for ex. .5 * 78 = 39
Answer: The correct options are
(d) 720.
(a) 336.
(c) 132.
(a) 5040.
Step-by-step explanation: The calculations are as follows:
(1) The number of ways in which six books be arranged on one shelf is given by
So, the total number of ways is 720.
Option (d) is CORRECT.
(2) Given that there are 8 girls competing in an ice-skating competition.
So, the number of ways in which they can finish in first, second, and third place is given by
Thus, the total number of ways is 336.
Option (a) is CORRECT.
(3) The number of ways in which a president and vice president can be selected from a class of 12 is given by
Thus, the total number of ways is 132.
Option (c) is CORRECT.
(4) The number of ways in which 7 students can line up for a class picture is given by
Thus, the required number of ways is 5040.
Option (a) is CORRECT.
Answer:
0.51 cm
Step-by-step explanation:
In right triangle MNP, MP = 4 cm, m∠N = 90°, m∠P = 21°
By the sine definition,
Now, consider right triangle HMN (it is right because NH is an altitude). By the cosine definition,
In the right triangle, two acute angles are always complementary, so
Thus,