Answer: 4 4/9 yards
Step-by-step explanation:
Since we are given the information that forty yards of fabric are used to make 9 school banners.
The number of yards of fabric that each banner use will be the total yards of fabric which is 40 yards divided by 9. This will be:
= 40/9
= 4 4/9 yards
Each banner will use 4 4/9 yards
Use the elimination method.
(-5x + y = 26)7
2x - 7y = 16
-35x + 7y = 182
2x - 7y = 16
-33x = 198
x = -6
Substitiute -6 for x in one of the equations.
2x -7y = 16
2(-6) - 7y = 16
-12 - 7y =16
-7y = 28
y = -4
The ordered pair would be (-6,-4)
The scientific notation for 5390000000000 = 5.39 x 10^12
Answer:
Increasing in x < 7 and decreasing in x > 7.
Step-by-step explanation:
g(x) = 1 -
<u>If a function is increasing in a interval, its first derivative is positive and if a function is decreasing in an intreval, its first derivative is negative.</u>
Using this concept here,
Substitute x > 7,
the first derivative is negative.Hence it is decreasing in this interval.
Substitute x < 7,
The first derivative is positive.Hence it is increasing in this interval.
Hence the answer is increasing in x < 7 and decreasing in x > 7.
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