Answer:
4) the Answer is - 237b + 144
3)The Answer is 42g - 18
Step-by-step explanation:
1. Distributive property first
4) 18 ( 8 - 14b) 5) 6( -3 + 7g) (Here question 5 is solved)
144 -252b -18 +42g or 42g -18.
2. Combine like terms ( in this case only apply to Question 4)
-252b + 15b = -237 b
answer is -237b + 144 or 144 -237b
<em>Hope this helps.</em>
The two angles form a a straight line which is equal to 180 degrees:
Make an equation:
57 + (x +23) = 180
Simplify:
x + 80 = 180
Subtract 80 from both sides:
x = 100
Answer:
Samantha's grade was 1.29 standard deviations above the class mean, that is, she scored better than 0.9015 = 90.15% of the class.
Step-by-step explanation:
Z-score:
In a set with mean and standard deviation , the z-score of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
In this question:
She scored better a proportion of the class given by the p-value of z = 1.29
z = 1.29 has a p-value of 0.9015.
Samantha's grade was 1.29 standard deviations above the class mean, that is, she scored better than 0.9015 = 90.15% of the class.
When b^2 -4ac >0 you get rational answers. I suppose you could use factoring as well as the quadratic formula.
when b^2 -4ac =0 You get one answer. Okay it is till technically "two" answers but you say BOTH values of x = whatever.
when b^2 -4ac <0 the answers are complex (imaginary) and have the value of "i" somewhere in them. For example the answers might be 2 + 2i that kind of thing
Answer:
20x16=320
Step-by-step explanation:
I think that's how ya do it