The answer is y=1 and x=-3
<h3>
Answer:</h3>
$392.16 in interest saved
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Step-by-step explanation:</h3>
The payoff in 1 year costs a total of 12 × $366.72 = $4400.64.
The payoff in 2 years costs a total of 24 × $199.70 = $4792.80.
Paying off the balance in 1 year saves interest charges of ...
... 4792.80 -4400.64 = $392.16
Answer:
18 ducks
Step-by-step explanation:
add the parts of the ratio 7 + 6 = 13
divide the total by 13 to find one part of the ratio
= 3 ← 1 part of the ratio
7 parts = 7 × 3 = 21 ← number of swans
6 parts = 6 × 3 = 18 ← number of ducks
Answer: The professor was not accurate with his hypothesis.
Null hypothesis: P1 = 12.5%, P2 = 42.5%, P3 = 45%
The alternate hypothesis: At least one proportion of the student will differ from the others.
Step-by-step explanation: To check if the professors hypothesis were inaccurate.
What percentage of student bought a hard copy of the book.
(25 ÷ 200) × 100 = 12.5%
What percentage of the student printed it from the web.
(85 ÷ 200) × 100 = 42.5%
What percentage of the students read it online.
(90 ÷ 200) × 100 = 45%
This means that the professor was not accurate with his hypothesis. Because the proportion of student in his hypothesis was not the same in the actual.
Therefore; the null hypothesis are
P1 = 12.5%, P2 = 42.5%, P3 = 45%
The alternative hypothesis will state that at least one of the proportion will be different from the others.
Answer:
50.24 mm²
Step-by-step explanation:
Area = pi × r²
3.14 × 4²
50.24 mm²