Answer:
No options are correct.
Explanation: Density = Mass / Volume Here density of concrete = 145 pounds per cubic foot Volume = Area * Length of post A cement bridge post is 24 inches square = Length of post = 15 feet 9 inch = 15.75 feet Volume of post = 0.1667 * 15.75 = 2.63 Weight of concrete post = 145* 2.63 = 380.63 pounds.
No options are correct.
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Answer:
5
Step-by-step explanation:
9x - 3 - 8x = 7 - x
9x - 3 - 8x + x = 7
2x - 3 = 7
2x = 10
x = 5
Answer:
<em>B) -7x + 7y = -49</em>
Step-by-step explanation:
This is a y=x plot/line shifted by 7 units.
This can also be verified plugging in the values of x=0,y=-7 and x=7,y=0. The only equation which satisfies these points in Equation B. These points have been chosen as they're the intercepts of this plot.
Answer:
B and c
Step-by-step explanation:
Answer:
the greatest common factor of the two numbers is 1
Step-by-step explanation: