Answer:
I need this to but i think the awnser is B
Step-by-step explanation:
Answer:
Width 13, Length = 22
Step-by-step explanation:
Let L = length and W = width
Given, length is 9 more than width, ie.
L = W + 9 ----> eq 1
Also given that area = 286 square inches.
Area of rectangle = length x width , or
286 = L x W -----> eq 2
2 equations, 2 unknowns => we can solve this system of equations by substitution.
Substitute eq 1 into eq 2,
286 = (W + 9) x W
286 = W² + 9W
W² + 9W - 286 = 0 (solve quadratic equation using your favorite method)
w = 13 or w = -22 (impossible since width cannot be negative)
hence W = 13 (substitute this back into equation 1)
L = 13 + 9 = 22
Answer:
216 cubic inches
Step-by-step explanation:
(9)(3)(3)=81
(3)(3)(9)=81
(3)(3)(6)=54
81+81+54=216
So, it's 216 cubic inches in volume.
Step-by-step explanation:
= - 4
= a* + (3- 1) d*
- 4 = a + 2d . . . . . . . . .(i)
= - 29
= a + ( 8 - 1) d
- 29 = a + 7d . . . . . . . . (ii)
subtracting equations (i) and (ii)
25 = 5d
d = -5
placing d = -5 in equation (i)
a - 10 = -4
a = 6
For an arithmetic Progtession
= a + (n - 1)d
= 6 + (n- 1)-5
= 6 - 5n + 5
*
*
Answer:
8
Step-by-step explanation:
exact
127/9-5.89
14.11-5.89
8.22
estimating
14 1/9 is close to 14
5.89 is close to 6
14-6 is 8