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alisha [4.7K]
3 years ago
5

C+4<-1 Tell whether -6 is solution of the inequality

Mathematics
1 answer:
Lorico [155]3 years ago
5 0

Answer: \begin{bmatrix}\mathrm{Solution:}\:&\:C

Step-by-step explanation:

C+4

C+4-4

C

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Suppose instead of comparing independent measurements taken from two groups, you used a matched-pairs experiment and one treatme
lina2011 [118]

You should use a T distribution to find the critical T value based on the level of confidence. The confidence level is often given to you directly. If not, then look for the significance level alpha and compute C = 1-alpha to get the confidence level. For instance, alpha = 0.05 means C = 1-0.05 = 0.95 = 95% confidence

Use either a table or a calculator to find the critical T value. When you find the critical value, assign it to the variable t.

Next, you'll compute the differences of each pair of values. Form a new column to keep everything organized. Sum everything in this new column to get the sum of the differences, which then you'll divide that by the sample size n to get the mean of the differences. Call this dbar (combination of d and xbar)

After that, you'll need the standard deviation of the differences. I recommend using a calculator to quickly find this. A spreadsheet program is also handy as well. Let sd be the standard deviation of the differences

The confidence interval is in the form (L, U)

L = lower bound

L = dbar - t*sd/sqrt(n)

U = upper bound

U = dbar + t*sd/sqrt(n)

3 0
3 years ago
Simplifty (x - 4)(x +8)
sineoko [7]

Answer: x² + 4x - 32

Step-by-step explanation: So to multiply these two binomials together, let's use the F.O.I.L. method.

Remember, F.O.I.L. stands for First, Outter, Inner, Last.

This is because we start with the product of the first terms which is x², then we add the product of the outer terms which is 8x, then we add the middle terms which is -4x, and then we add the product of the last terms which is -32.

So we have x² + 8x + -4x + -32.

Combining the like terms 8x + -4x, our final answer is x² + 4x - 32.

3 0
3 years ago
Think of a matrix A and B which are both 3X3 matrices. Do not use all zeros or all
marin [14]

Answer:

9

Step-by-step explanation:

3x3 =9 hope this helps bbs

4 0
3 years ago
What is the volume of this container?
satela [25.4K]

Answer:

The volume of the container is<u><em> 480</em></u> in.

Step-by-step explanation:

First, lets break the container into two figures, just to make it easier to calculate the volume or area.

The first figure is has the height of 10 in, length of 8 in, and width of 5 in.

10 × 8 × 5

10 × 8 = 80

80 × 5 = 400

The volume of the first figure is <em>400</em> in.

Next, lets calculate the volume of the second figure which has the height of 5 in, length of 4 in, and the width of also 4 in.

5 × 4 × 4

5 × 4 = 20

20 × 4 = 80

The volume of the second figure is <em>80 </em>in.

Now, lets add the volumes of the two figures to find the total volume, 400 in for the first figure, and 80 in for the second figure. v

400 + 80 = 480

The total volume of the figure is<u><em> 480 </em></u>in.

8 0
2 years ago
Diana sent 25 invitations for her birthday party if 1/6 of the invitations were for family about how many invitations were for f
miskamm [114]
The answer is 150 invitations were for the family
5 0
3 years ago
Read 2 more answers
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