Answer:
13
Step-by-step explanation:
The square root of 169 is 13
5x[$25.85-($25.85 x 0.10) ] + (5 x 2.50)=$128.83 compared to[ 5 x 27.36( $27.36 x 0.15)]+ 10.00= 126.28 is the least amount.
answer is ------> $126.28
13.) A=9cm^2
If the area is l•h, and there are 9 cubic squares, that means that the length of each side on the square is 3cm, each square on it equals 1cm.
14.) V=27cm^3
If the volume is l•w•h, then we find the third power square root of 27, so 3•3=9•3=27, the answer is 3cm for the length, width, and height.
15.) V=4,913cm^3
If volume is l•w•h, then what number when raised to the third power equals 4913? The answer is 17, since 17•17=289•17=4913. So the length is 17cm
16.)V=216cm^3
If volume is l•w•h, then what number when raised to the third power equals 216? The answer is 6, since 6•6=36•6=216.
17.)A=121
Is area is l•w, then what number raised to the second power equals 121? The answer is 11, since 11•11=121. Therefore it WILL NOT fit a car with a length of 13ft.
18.)A=141
If area is l•w, then what number raised to the second power equals 141? The answer is 12, since 11.87•11.87=141 (answer was rounded to nearest whole number) meaning that she will need 12ft of fence to enclose her garden.
Answer:
B. 33
Step-by-step explanation:
36 - (9/ 3)
36 - 3
33
Answer: x=4, y=-2
Step-by-step explanation:
we can use the elimination method to eliminate one term to find x. Let multiply the top system by 4 then add the second system to eliminate the variable.
4(3x-y=14)
12x-4y=56
5x+4y=12
17x=68
x=4
Since we know x=4, let plug this back in to one of the system to find y.
5(4)+4y=12
20+4y=12
4y=-8
y=-2
