Answer: the length is 11 cm.
The width is 7 cm.
Step-by-step explanation:
Let L represent the length of the rectangular plastic box.
Let W represent the width of the rectangular plastic box.
The area of the rectangular top of the box is 77 square cm. This means that
LW = 77- - - - - - - ;- - - -1
The plastic box has a length 4 cm longer than its width. This means that
L = W + 4
Substituting L = W + 4 into equation 1, it becomes
(W + 4)W = 77
W² + 4W = 77
W² + 4W - 77 = 0
W² + 11W - 7W - 77 = 0
W(W + 11) - 7(W + 11) = 0
W - 7 = 0 or W + 11 = 0
W = 7 or W = - 11
Since the width cannot be negative, then W = 7cm
L = 77/7 = 11 cm
Answer:
See below ~
Step-by-step explanation:
Based on the graph,
- <u>f(-3)</u>
2. <u>f(4)</u>
3. <u>x when f(x) = 5</u>
4. <u>x when f(x) = -3</u>
If you’re looking for the ratio:
75cm = 750mm
250:750
1:3
The answer is 1:3
Answer:
one and fifty six hundred thousandths
