An engineer wants to measure the bias in a pH meter. She uses the meter to measure the pH in 6 neutral substances and obtains pH readings of 7.11, 7.04, 7.07, 6.99, 7.10, and 7.16 (6 pts)a. Find the mean and standard deviation for the pH values (show your work). (2 pts)b. Create a 95% confidence interval for the pH values read by this meter. Use a t critical value of 2.571. (2 pts)c. Explain in context what your confidence interval tells you about the pH values read by this meter. (1 pt)d. The actual pH of the substances tested was 6.8. Is there evidence the pH meter is testing inaccurately

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

it would open into a square depending on the type of envelope i’m not sure about the second part

we have the parent function given by,

1. the function is translated 5 units to the left.

so, we get,   becomes

2. the function is translated 5 units to the right.

so, we get,   becomes

3. the function is translated 5 units upwards.

so, we get,   becomes

4. the function is translated 5 units downwards.

so, we get,   becomes

5. the function is reflected across x-axis.

so, we get,   becomes

6. the function is reflected across y-axis.

so, we get,   becomes .

step-by-step explanation:

mark brainliest.

it is only things thain can be deafeated

step-by-step explanation: