Answer:
8m ×3.5m
Step-by-step explanation:
Area of rectangle= length ×width
Let the length and width of the rectangle be L and W meters respectively.
Area of rectangle= LW
LW= 28 -----(1)
L= 2W +1 -----(2)
Subst. (2) into (1):
(2W +1)(W)= 28
<em>Expand:</em>
2W² +W= 28
<em>-28 on both sides:</em>
2W² +W -28= 0
<em>Factorise</em><em>:</em>
(W +4)(2W -7)= 0
W +4=0 or 2W -7=0
W= -4 (reject) or W= 3.5
Substitute W= 3.5 into (2):
L= 2(3.5) +1
L= 7 +1
L= 8
∴ The dimensions of the rectangle is 8m ×3.5m.
Answer:
24 feet cubed
Step-by-step explanation:
When comparing the volume formula for a cone and the volume formula for a cylinder, a cone is 1/3 of a cylinder. Therefore, divide 72 by 3 to get the volume of a cone with the same base and height. It would not be 24 pi feet cubed because 72 feet cubed is already multiplied by the pi.
First look at the points and find their x and y values. So we have:
(-3,3), (0,0), (3,3)
Next separate the x values and the y values
x values: -3, 0, 3
y values: 3, 0, 3
The x values are your domain and the y values are are range
So the answer is b
Answer:
x = -2
Step-by-step explanation:
7x + 3 = -11
-3 -3 subtract both sides by 3
7x = - 14
7x/7 = - 14/7 divide both sides by 7
-14/7 = -2
48÷8=6, 8×6=48, 48<span>÷6=8</span>
