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MArishka [77]
3 years ago
13

Grade 8 Math

Mathematics
1 answer:
aksik [14]3 years ago
7 0
Read this sentence in the problem carefully.
"<span>The number of pages in each program is determined by the number of graduates."

That means that you can have any number of graduates, and you will figure out the number of pages in the program depending on the number of graduates.

g, the number of graduates, is the independent independent variable.
p, the number of pages, is the dependent variable.
</span>
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What is (-5x^2 + 6x + 7) + (-x^2 + 4x) in polynomial standard form?
natka813 [3]

Answer:

I'm not a human I'm bot

Step-by-step explanation:

so if anything PLEASERE DONT REPORT

7 0
2 years ago
A geologist examines 6 seawater samples for lead concentration. The mean lead concentration for the sample data is 0.903 cc/cubi
Gnesinka [82]

Answer:

Step-by-step explanation:

We want to determine a 95% confidence interval for the mean lead concentration of sea water samples

Number of samples. n = 6

Mean, u = 0.903 cc/cubic meter

Standard deviation, s = 0.0566

For a confidence level of 95%, the corresponding z value is 1.96. This is determined from the normal distribution table.

We will apply the formula

Confidence interval

= mean +/- z ×standard deviation/√n

It becomes

0.903 +/- 1.96 × 0.0566/√6

= 0.903 +/- 1.96 × 0.0566/2.44948974278

= 0.903 +/- 0.045

The lower end of the confidence interval is 0.903 - 0.045 =0.858

The upper end of the confidence interval is 0.903 + 0.045 =0.948

Therefore, with 95% confidence interval, the mean lead concentration of the sea water is between 0.858 cc/cubic meter and 0.948 cc/cubic meter

7 0
3 years ago
1. A jeepney driver claims that his average monthly income is Php 3000.00 with a standard deviation of Php 300.00. A sample of 3
nydimaria [60]

Answer:

Kindly check explanation

Step-by-step explanation:

The hypothesis :

H0 : μ = 3000

H0 : μ ≠ 3000

The test statistic :

(xbar - μ) ÷ (s/√(n))

xbar = 3500

μ = 3000

σ = 300

n = 30

(3500 - 3000) ÷ (350/√(30))

Test statistic = 7.824

Df = 30 - 1 = 29

Tcritical at 0.01 = 2.462

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μ ≠ 3000

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3 years ago
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Bezzdna [24]
You have to estimate the square root which is what times itself equals the number in the square root. An integer is another word for a whole number or a number without any fractions. So you have to estimate what the square root is to the nearest whole number.
6 0
3 years ago
Question
tatiyna

Answer:

Wes

Step-by-step explanation:

This represents a positive correlation, meaning that when x increases, so does y. Because of x, y increases meaning that Wes is correct

3 0
2 years ago
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