Answer: 
Step-by-step explanation:
It is important to remember that an Exponential function has the following form:

Where “b” is
and
, "a" is a coefficient, "x" is the Independent variable and f(x) is the Dependent variable.
In this case, you have the following Exponential Function given in the exercise:

If the value of Dependent variable is -3, then:

So, you must substitute that value of "x" into the function:

And now you must evaluate:
1. According the Negative exponent rule:

Then:

2. Simplifying, you get:

It's -5.25 because 5*8 is 40 and 6*8 is 48.
<u>Answer:</u>
Below!
<u>Step-by step solution:</u>
<u>Dividing Mixed Numbers (Answers):</u>
1. 2 9/10 ÷ 3 2/5
- => 29/10 ÷ 17/5
- => 29/10 x 5/17
- => 29/2 x 1/17
- => 29/34
2. 4 1/2 ÷ 3 1/5
- => 9/2 ÷ 16/5
- => 9/2 x 5/16
- => 45/32
3. 4 1/4 ÷ 3 4/5
- => 17/4 ÷ 19/5
- => 17/4 x 5/19
- => 85/76
4. 4 1/2 ÷ 2 2/5
- => 9/2 ÷ 12/5
- => 9/2 x 5/12
- => 3/2 x 5/4
- => 15/8
5. 3 1/2 ÷ 4 2/5
- => 7/2 ÷ 22/5
- => 7/2 x 5/22
- => 35/44
6. 4 3/5 ÷ 3 1/2
- => 23/5 ÷ 7/2
- => 23/5 x 2/7
- => 46/35
<u>Dividing Fractions and Whole Numbers (Answers):</u>
1. 10 ÷ 5/10
- => 10 x 10/5
- => 100/5
- => 20
2. 2/3 ÷ 7
3. 10 ÷ 2/4
- => 10 x 4/2
- => 10 x 2
- => 20
4. 10 ÷ 2/3
5. 2/3 ÷ 3
6. 1/2 ÷ 7
<u>Dividing Fractions (Answers):</u>
1. 1/2 ÷ 1/3
2. 4/5 ÷ 1/2
3. 2/4 ÷ 7/10
4. 1/2 ÷ 5/10
- => 1/2 x 10/5
- => 1/2 x 2
- => 1
5. 2/4 ÷ 2/5
- => 2/4 x 5/2
- => 1/4 x 5/1
- => 5/4
6. 4/5 ÷ 1/3
Hoped this helped.

The best choice is A)
when you add a zero, it does not count on a decimal, so,
1.9, 1.90, 1.900.
Answer:
D = sqrt[ (2-4)^2 + (7- (-1))^2] = ~8.2
Step-by-step explanation:
D = sqrt[ (Fx-Gx)^2 + (Fy- Gy)^2]