$9 each time for 6 times total, that's just 9 × 6 = 54. So, your answer will be $54 for 6 lawn mowns.
- Interestingly enough, my 8th grade math teacher's last name was Derocher! Except she was 'Ms. Derocher'
The two ys must be the same. Equate the two right hand sides.
-x + 10 = x + 2 add x to both sides.
10 = x + x + 2
10 = 2x + 2 Subtract 2 from both sides.
8 = 2x Divide by 2
x = 8/2
x = 4
Now solve for y
y = x + 2
y = 4 + 2
y = 6
Use the other equation to check it.
y = - x + 10
y = -4 + 10
y = 6
The exponential growth is:
And its graph is the first one.
The exponential decay is:
And its graph is the second one.
<h3>
How to identify the exponential equations?</h3>
The general exponential equation is of the form:
Where A is the initial value and b is the base.
- If b > 1, then we have an exponential growth.
- if 1 > b > 0, then we have an exponential decay.
Here the two functions are:
As you can see, the base for the first one is smaller than 1, then it is an exponential decay (and it has a decreasing graph, so the graph of this one is the second graph).
For the second function, we have the base b = 1.25, which is larger than 1, so it is an exponential growth, and its graph is an increasing graph, which is the first one.
If you want to learn more about exponential functions:
brainly.com/question/11464095
#SPJ1
Ok,
8x - amount of boys
7x - amount of girls
8x + 7x = 195
15x = 195
195 / 15 = 13
x = 13
Plug in 13 for x
8 * 13 = 104
7 * 13 = 91
There are 104 boys and 91 girls
Hope this helps!
Use the law of sines.
SO:
Next, you solve for A, Which gets you to the following solution for A
Sin(A) = (5 * Sin(95'))/6.5
This will give you the answer to A.
You then use A + 95 + B = 180 to find B.
The answer, therefore, is:
35'