Answer:
t(4) = 6 ---- a + 3d = 6
t(8) + t(9) = -72
a+7d + a+8d = -72
2a + 15d = -72
double the first equation
2a + 6d = 12
subtract them
9d = -84
d = -84/9 = -28/3
Step-by-step explanation:
Answer:
0 or -5/768
Step-by-step explanation:
192x * 4 is 768x
Now you have 768x=-5
If you divide both sides by 768 you get -5/768
In decimal form that is -0.006510416
If you round the decimal to the nearest tenth you get 0
I hope this helps!
Please give brainliest if it did help
Answer: False.
The sample mean does not determine how wide the confidence interval would be. The sample mean determines the center of the confidence interval. The confidence level, standard deviation, and the sample size would determine the confidence interval width.
I found the corresponding image.
The step towards proving the similarity of triangles DEF and GED is:
ANGLE E IS CONGRUENT TO ITSELF.
ΔDEF is a right triangle. Its hypotenuse is EF, its long leg is DF, its short leg is DE.
ΔGED is also a right triangle. Its hypotenuse is DE, its long leg is DG, its short leg is GE.
Only Angle E is in both triangles and its measure remains the same.