Answer:
Option B. 
Step-by-step explanation:
step 1
Find the area of a circle with radius 8.5 inches
The area of a circle is equal to
substitute
step 2
Find put the approximate area of the fan
we know that
The area of complete circle subtends a central angle of 360 degrees
so
using proportion
Find the area that correspond a central angle of 125 degrees
assume
1) You will need to simplify both sides of the inequality.
2) Now you will need to subtract the like terms which leaves you with
We cannot do anything else so the answer will be
a<span>
ll real numbers are solutions.</span>
Answer:
5 batteries.
Explanation:
"How many batteries lasted more than 5 1/2 hours?" which means it's counting not only 5 1/2, but 5 3/4 and 6 1/4
If there is 5/8 of a total fuel supply on board, the ship can make 6 round trips
<u>Solution:</u>
Let the number of the round trips the ships make be "n"
Now, according to question in one trip the ship consumes 
of its total fuel supply which is given to be 
Fuel supply used in "1" trip = 
Now fuel supply used for "n" trip is given as:
Hence the ship can make 6 round trips
The generic equation for a linear function can be expressed in the slope intercept form f(x) = mx + b, where m is the slope and b is the y intercept. For this problem we can first find the equation of the line. Then we substitute x = 7 to get the f(x) value, which is n at the point x = 7.
To find the equation of the linear function we first find the slope. Slope is defined as the change in f(x) divided by the change in x. As we are given a linear function, the slope at every point is the same. We can pick any two points known to find the slope.
Let's pick (3, 7) and (9, 16). The slope m is m = (16-7)/(9-3) = 9/6 = 3/2.
Now that we have the slope, we can plug in the slope and one of the points to find b. Let's use the point (3, 7).
f(x) = mx + b
7 = (1/2)(3) + b
b = 11/2
Now we can write the equation
f(x) = (1/2)x + 11/2
Plugging in x = 7 we find that f(7) = 9. n = 9
