In this experiment, the mean of the differences in words counts is -6.96 and the standard deviation is 3.88. What is the standard error in the distribution of sample means? Round to two decimal places. What is the T-score for this sample?

Round to two decimal places.

What is the P-value? Round to two decimal places.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

i think the answer is d im not sure

probably the last option

step-by-step explanation:

there is no points to select.

step-by-step explanation: