Step-by-step explanation:
mean when 82 is present
=<u>8</u><u>2</u><u>+</u><u>4</u><u>4</u><u>+</u><u>2</u><u>7</u><u>+</u><u>9</u><u>6</u><u>+</u><u>6</u><u>9</u><u>+</u><u>8</u><u>0</u><u>+</u><u>7</u><u>5</u><u>+</u><u>8</u><u>3</u><u>+</u><u>5</u><u>6</u><u>+</u><u>9</u><u>8</u>=<u>7</u><u>1</u><u>0</u>
10 10
= 71
mean when 42 is present
=<u>4</u><u>2+44+27+96+69+80+75+83+56+98</u>=<u>6</u><u>7</u><u>0</u>
10 10
=67
therefore the mean decreases with
= 71 - 67 = 4
Answer:
The choice A.
Step-by-step explanation:
sin= Opposite/ hypotenuse

tan = opposite/adjacent

I hope I helped you^_^
Answer:
<em>The correct option is: 32.4 km/h</em>
Step-by-step explanation:
The fastest recorded speed of a turtle while swimming is 9 m/s.
Now, 9 m/s 
1 kilometer= 1000 meter
So, 1 meter
kilometer
and <u>9 meters</u>
kilometer
Now, 1 hour = 3600 seconds
So, <u>1 second</u> 
Thus, we will get.........

So, the speed of the turtle will be 32.4 km/h.
Answer:
Step-by-step explanation:
5ht dogs=1.50 each
2hamburger=4.00 each
equals15.50
1 ht dog=1.50
4hamburger=16.00
total equals 17.50
hot dog dinner =1.50