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3 years ago

I am giving 50 points. I only need help with this last page! Please someone help me.

Mathematics

2 answers:

Charra [1.4K]3 years ago

8 0

Answer:

E) 31/15 = 2.0666666

7/3 = 2.333333

1/12 = 0.083333333

F) 2/15 = 0.1333333

19/12 = 1.58333333

11/15 = 0.7333333

8/3 = 2.666666

G) 10/11 = 0.909090909

11/6 = 1.833333

5/18 = 0.277777

11/12 = 0.916666666

H) 7/60 = 0.11666666

26/9 = 2.8888888

20/9 = 2.2222222

3/11 = 0.2727272727

I) 22/3 = 7.333333

13/36 = 0.361111111

1/60 = 0.01666666

41/3 = 13.6666666

J) 7/6 = 1.1666666

4/3 = 1.333333

4/9 = 0.444444

1/30 = 0.0333333

K) 29/3 = 9.66666

5/9 = 0.55555

10/3 = 3.333333

10/9 = 1.1111111

tia_tia [17]3 years ago

5 0

All u gotta do it plug it into ur calculator and you will get a decimal answer

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Describe the graph of the function f(x) = 2x^3 +14x^2 +13x +6. Include the y-intercept, x-intercepts, and the shape of the graph

vovikov84 [41]

$f(x) = 2x^{3} + 14x^{2} + 13x + 6$

The graph is attached below.

In order to find the y-intercept, check the graph and see where it hits the y-axis, so in this case the y-intercept would be at (0,6).

To find the x-intercept, check the graph and see where it hits the x-axis, and here it hits at x = -6.

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2 years ago

Fizzy Waters has been involved in multiple lawsuits regarding the alkaline substance concentration in their product and getting

ser-zykov [4K]

Answer:

Step-by-step explanation:

For the sample, n = 12

Mean, x = (158.2 + 162.8 + 161.5 + 161.2 + 166.5 + 160.1 + 158.4 + 175.6 + 159.9 + 168.8 + 161.9 + 163.7)/12 = 163.22

Variance, s² = (summation(x - mean)²/n

Summation(x - mean)² = (158.2 - 163.22)^2 + (162.8 - 163.22)^2 + (161.5 - 163.22)^2 + (161.2 - 163.22)^2+ (166.5 - 163.22)^2 + (160.1 - 163.22)^2 + (158.4 - 163.22)^2 + (175.6 - 163.22)^2 + (159.9 - 163.22)^2 + (168.8 - 163.22)^2 + (161.9 - 163.22)^2 + (163.7 - 163.22)^2 = 273.5368

Variance, s² = 273.5368/12 = 22.79

This is a test for a single variance. We would set up the test hypothesis.

For the null hypothesis,

H0: σ² ≥ 25

For the alternative hypothesis,

H1: σ² < 25

The formula for determining the test statistic,x² is

x² = (n - 1)s²/σ²

Where n - 1 is the degree of freedom, df.

df = 12 - 1 = 11

x² = (11 × 22.79)/25 = 10.0276

For a test of 90% reliability, Confidence level = 0.9

Cl = 1 - alpha(level of significance)

alpha = 1 - 0.9 = 0.1

The critical value from the chi-square distribution table is 17.28. Since 17.28 > 10.0276, we would reject the null hypothesis. Therefore, the filling machine does not need repair because the variance of the process is not more than 25 oz.

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2 years ago

A rectangular field is 450 meters long and 300 meters wide. What is the area of the field in square kilometers?

rodikova [14]

First you multiply 450 m ×300 m= 135,000 m
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So the answer is 135 Kilometers

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3 years ago

Find the thirteenth term of an arithmetic sequence if the first term is 3 and the common difference is 3

lesya692 [45]

Answer:

Step-by-step explanation:

Formula for the nth term (an) = a1 + d(n - 1) where a1 = the first term and d = common difference.