State whether true or false 12+(-15) =12-15
Answers
True
A negative times a positive equals a negative.
12 + (-15) = 12 - 15
12 - 15 = 12 - 15
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Half of j minus 5 is the sum of k and 13
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How do I construct a sample data set for which n=7, x=9(x bar), and s=0?
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$15.38+$6.25+$12.04= 33.67 roughly
Answers
5/6-3/6
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=
5x + 2y = 15
(–40, 19)
(–19, 55)
(19, –40)
(55, –19)
Answers
Replacing y in the second equation gives;
5x+2(-3x-2)=15
5x-6x-4=15
-x-4=15
-x=19
x=-19
y=-3(-19)-2
y=57-2
y=55
(-19, 55)
Answers
As a starter, the y value is equal to f(x); the x value is equal to the x in f(x).
So basically, in this case, replace x with the number in the brackets.
Coordinates have x, y values (x, y). Here, we know x is -2, so we need to find y.
on the graph, find x = -2 and find where the line of the drawn graph intersects it. Looks like the line intersect x = -2 when y = 3. So f(-2) = 3.
Same applies for b: x = 0, find where the line hits x = 0, and that's your y value, which is 1.
Tried my best to simplify it. Hope it helps lol.
3/5
2/3
4/5
Answers
Answer: The scale is 5/4
Step-by-step explanation:
To determine the scale factor, you have to locate which sides are similar to each other .
the side length with 20 is congruent to 16
15 is similar to 12 and 10 is similar to 8.
And to get from triangle A to triangle B of any side length, we need to multiply by a certain number which is the scale factor.
And to find that number we will divide the side length of any side in triangle A by the similar side to it in triangle B.
20/ 16 = 5/4
15/ 12 = 5 / 4
10 / 8 = 5/4