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RideAnS [48]
3 years ago
7

What is the inequality

Mathematics
1 answer:
forsale [732]3 years ago
4 0
Use area of triangle. Then, Simplify the inequality. like this
\frac{1}{2}  \times x \times 10 \geqslant 8 \\   5 \times x \leqslant 8 \\ 5x \leqslant 8
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A music app charges $2 to download the app plus $1.29 per song downloaded. What is the correct equation?
alexandr402 [8]

Answer:

c = 1.29s + 2

Step-by-step explanation:

c represents the total cost

s represents the number of songs downloaded

1.29 represents the cost charged for every song downloaded

2 represents the initial cost to download the app    

4 0
3 years ago
A local company wants to evaluate their quality of service by surveying their customers.
stich3 [128]

Answer: b. 0.98

Step-by-step explanation:

The formula to find the maximum error of the estimated mean :

E=z^*\dfrac{\sigma}{\sqrt{n}}            (1)

, where \sigma = standard deviation

n= Sample size

z* = Critical z-value.

As per given , we have

\sigma=5

n=100

Critical value for 95% confidence interval = z*=1.96

Put these values in the formula (1), we get

E=(1.96)\dfrac{5}{\sqrt{100}}

E=(1.96)\dfrac{5}{10}=0.98

Hence, the maximum error of the estimated mean quality for a 95% level of confidence is 0.98.

Therefore , the correct answer is b. 0.98 .

6 0
3 years ago
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By selling an article for Rs 144, a man loses 1/7 of his outlay. Find its cost price.
Tresset [83]

Answer:

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5 0
3 years ago
Foactoring Diff/ Sum of Cubes <br><br>Factor completely​
Ira Lisetskai [31]

it is sum of cubes.

hope that helps

3 0
3 years ago
Please Help! Given triangles ABC and DEF, which statement explains a way to determine if the two figures are similar?
forsale [732]

Answer:

A

Step-by-step explanation:

i took the test

5 0
3 years ago
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