Answer:
Step-by-step explanation:
<u>Given</u>
<u>Solving in steps</u>
- 1. ⇒ z + (-0.72) - (-0.72) = -2.5 - (-0.72)
- 2. ⇒ z = - (2.5 - 0.72)
- 3. ⇒ z = - 1.78
The student's mistake was adding (-0.72) instead of - (-0.72) or 0.72
A)
check the picture below.
b)
what does this mean? check the picture below, notice the x-intercepts points.
The answer to this question is A.48
Answer:
2
Step-by-step explanation:
First plug in all the numbers into the variables.
3(2^2) - (18 - 4(2))/ 3^2 - 8
This is what your equation should look like after you plugged in 2 for the a and 3 for the b. Then you solve them individually; starting with 3(2^2). 2^2 is 4 and 3 × 4 is 12. So now the equation should look like this:
12 - (18 - 4(2))/ 3^2 - 8
Next, we can solve for (18 - 4(2)). So -4 × 2 is -8, and then you have (18 - 8). That answer would be 10. You should have 12 - 10 on top now, and the answer to that is just 2. Now your equation should look like this:
2/ 3^2 - 8
Now onto 3^2 - 8. 3^2 is 9 because that would just be 3 × 3. Now you have 9 - 8, which is 1. So now you should be left with:
2/1
And that's your final answer.
Answer: 72
Step-by-step explanation:
Set it up as a ratio