Answer:
Step-by-step explanation:
Time it takes to burn entire cancle 10 hrs.
the heights from 0 hrs to 4 hrs is at first 10 inches tall but then its 6 inches tall when it hits the 4 hr mark.
it burns one inch every hr
the origional height is 10 inches
Answer:
a
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
This is a sample proportion where p^ represents the sample proportion.
If we have p^ = 0.6, it means about 60% of the sample are in agreement with or significant to the case study.
The case study here is 'customers that play racquetball' and p^ was 0.16.
This means that 16% of the customers of the sample said they play racquetball.
Answer:
475
Step-by-step explanation:
100%-32%=68%
323 x 100=32300/68
=475
For the area of the deck to be doubled, he should increase each dimension by 3.
<h3>How to find the dimension increase to double the area?</h3>
The deck is 4 feet by 21 feet.
She wants to increase each dimension by equal lengths so that its area is doubled.
Therefore,
initial area = 4 × 21 = 84 ft²
Hence,
The increase by equal length
width = x + 4
length = x + 21
area = 2(84) = 168 ft²
Therefore,
(x + 4)(x + 21) = 168
x² + 21x + 4x + 84 = 168
x² + 25x + 84 = 168
x² + 25x + 84 - 168 = 0
x² + 25x - 84 = 0
(x + 28) • (x - 3) = 0
x = -28 or 3
It can only be positive.
Therefore, she should increase each dimension by 3.
learn more on area here: brainly.com/question/23640960
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