Answer: Optional
Step-by-step explanation:
Since c is greater than d, 2c would be greater than 2d, because when it’s like this 2c
It sometimes means multiply.
It's gonna be 5 - (2 + 4 -2)
according to order of operations, we have to solve inside the parentheses/brackets first (from left to right)
therefore, it will be
5 - (6 - 2)
=5 - (4)
Next, distribute the negative to the four and add normally.
= 5 - 4
= 1
Answer:
73 mph during the second hour!
Step-by-step explanation:
Hour 1=54 mph
Hour 2=? mph
Hour 3=82 mph
Total=209 mph
this means that 209=82+54+?
Simplify it and you will get 73
73 mph
Answer:
C
Step-by-step explanation:
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Find Slope :
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y = -2/7x + 9
Slope = -2/7
Perpendicular slope= 7/2
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Find y - intercept :
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y = mx + b
y = 7/2 x + b
At (4, -6)
-6 = 7/2 (4) + b
-6 = 14 + b
b = -6 - 14
b = -20
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Form equation :
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y = mx + b
y = 7/2 x - 20
2y = 7x - 40
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Answer: 2y = 7x - 40
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