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Delicious77 [7]
3 years ago
10

3 (2x-1 ) +7 = - 44 ( solve for x)

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
8 0

Answer:

x = - 8

Step-by-step explanation:

To solve for x, isolate it by "moving" everything else over to the other side. This is done in reverse BEDMAS order using the reverse operations of number you want to move.

3 (2x-1 ) +7 = - 44   Simplify first using distributive property over the brackets

6x - 3 + 7 = - 44    Combine like terms, terms that have the same variables

6x + 4 = - 44

6x + 4 - 4 = - 44 - 4   Subtract 4 from both sides to cancel it out on the left side

6x = - 48

6x/6 = - 48/6   Divide by sides by 6 to cancel out the 6 from 6x

x = - 8    Final answer

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A researcher wants to test to see if husbands are significantly older than their wives. To do this, he collects the ages of husb
OLga [1]

Complete Question

The complete is shown on the first uploaded image

Answer:

The correct option are option 2 and option 4

Step-by-step explanation:

From the question we are told that

   The sample size is  n = 12  

    The test statistics is  t \approx 1.434

    The level of significance is  \alpha = 0.05

    The  rejection region is    t>1.796

   The null hypothesis H_o: \mu_d=0

    The alternative hypothesis is  H_a : \mu_d >0

 From the given values we see that t <  1.796(i.e   1.434 < 1.796 ) which implies that t is not within the rejection region

  Hence we fail to reject the null hypothesis

The conclusion is that there is insufficient evidence to suggest that that the husbands are significantly older than the wife.

4 0
2 years ago
3/8 simplified⁉️<br> 14/21 simplified⁉️<br> 9/15 simplified ⁉️
ioda
14/21 is 2/3 simplified.
9/15 is 3/5 simplified.
and 3/8 can not be simplified, so it's 3/8
7 0
3 years ago
Read 2 more answers
Here is a uniform probability distribution.
Darya [45]

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b) a=3 because the shaded region is a rectangle of height 1/5 (by virtue of X following a uniform distribution over the interval [2, 7], which has length 5).

4 0
3 years ago
!!!!How many solutions does the equation have?
Margaret [11]
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3 0
3 years ago
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alex41 [277]

Answer:

No, you can't form a triangle because angles in a triangle add up to 180 degrees.

Step-by-step explanation:

100+50+50= 200 degrees, which means that you cant form a triangle with these measurements because angles in a triangle have to add up to 180 degrees.

7 0
3 years ago
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