What is the line of symmetry for the parabola whose equation is y = 3x2 + 24x - 1?
2 answers:
You might be interested in
a. Jada got the measurement 16m.
b. The measured depth differ 0.2m from the actual depth.
c. There is a 12.66% error in calculation.
Step-by-step explanation:
Given,
The depth of lake = 15.8 m
a. Jada accurately measured the depth of the lake to the nearest meter. What measurement did Jada get
When a digit after the decimal point is 5 or more than that, the number before decimal is rounded to the next number.
Therefore,
15.8 rounded to nearest number is 16.
The depth of lake measured by Jada = 16 m
Jada got the measurement 16m.
b. By how many meters does the measured depth differ from the actual depth?
Difference = Approx - Exact
Difference = 16 - 15.8 = 0.2m
The measured depth differ 0.2m from the actual depth.
c. Express the measurement error ad a percentage of the actual depth.
Percent error =
Percent error =
Percent error = 12.66%
There is a 12.66% error in calculation.
Keywords: percent, error
Learn more about percent at:
#LearnwithBrainly
For this case we have the following expression:
Applying distributive property to the terms within parentheses taking into account that:
We have:
We add similar terms taking into account that:
Equal signs are added and the same sign is placed.
Thus, an equivalent expression is:
Answer:
Total hours of hiking is 15.12 miles
Time taken is 6.3 hours
The number of miles hiked per hour would be
Total hours ÷ time taken
=2.4 miles
So Megan has hiked 2.4 miles every hour