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r-ruslan [8.4K]
3 years ago
13

Evaluate each expression 5.12x - 7

Mathematics
1 answer:
galina1969 [7]3 years ago
3 0

Answer:

answer is -35.84

........

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there are 25 painters an 80% of them are painting the interior how many painters are painting the inside
Zepler [3.9K]

Answer:

20 painters are painting the inside

Step-by-step explanation:

8 0
3 years ago
What is the statistical decision regarding the differences between the observed and expected frequencies if the critical value o
mel-nik [20]

Answer:

Fail to reject.

Step-by-step explanation:

For a goodness of fit test the decision rule is:

If the calculated value of the test statistic is more than the right tailed critical value of chi-square, then the null hypothesis will be rejected.

The hypothesis for a goodness of fit test is:

<em>H</em>₀: There is no differences between the observed and expected frequencies.

<em>Hₐ</em>: There is a significant differences between the observed and expected frequencies.

The computed value of the test statistic is, 6.079.

The critical value of chi-square is 9.488.

Calculated test statistic < Critical value

                            6.079 < 9.488

Thus, the null hypothesis was failed to rejected.

6 0
3 years ago
What is the surface area of the prism in square feet?
Evgesh-ka [11]

Answer:

The surface area of the rectangular prism is 52 square feet (ft²), if the height is 4 feet, width is 3 feet and depth is 2 feet.

Step-by-step explanation:

          The given is,

                    A  prism of

                     Let, h - height of the prism

                            w - Width of the prism

                            d - Depth of the prism

Step:1

        From given,

                     h = 4 feet

                     w = 3 feet

                     d = 2 feet

Step:2

        Formula to calculate the surface area of the rectangular prism is,

         A=2(wd+hd+hw)             

       Substitute the values of w,d and h

                           = 2 [(3×2) + (4×2) + (4×3)]

                           = 2 (6+8+12)

                           = 2 × 26

                           = 52

                       A = 52 Square feet

Result:

        Thus the surface area of the rectangular prism is 52 square feet (ft²), if the height is 4 feet, width is 3 feet and depth is 2 feet.

6 0
3 years ago
Q.)A computer chooses a number between 1 and 1000. If the number is even how many outcomes are possible?
Vadim26 [7]

Answer:

The answer is 500 because every other number is even. In other words, half of the numbers are even. Half of 1000 is 500.

Is that how you got the answer?

5 0
3 years ago
Task is to construct two brick columns of the dimensions shown on which an iron gate will eventually be hung. Because
Anna35 [415]

Answer:

224 in²

Step-by-step explanation:

4 0
3 years ago
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