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My name is Ann [436]
3 years ago
12

Negative 4 equals r/20 minus 5

Mathematics
1 answer:
levacccp [35]3 years ago
5 0

Answer: r = - 20

Step-by-step explanation:

-4 = \frac{r}{20} - 5

\frac{r}{20} = 4-5

\frac{r}{20}=-1

\frac{r}{20}*20 = -1 * 20

r = -20

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Plz help.............​
yKpoI14uk [10]

Answer:

5/6

Step-by-step explanation:

Perpendicular lines just have the opposite slope.

6 0
3 years ago
For a lower tail hypothesis test with a sample size of 10 and a .10 level of significance, the critical value of the test statis
Fynjy0 [20]

Using a t-distribution calculator, it is found that the critical value of the test statistic t is t^{\ast} = -1.383.

<h3>How to find the critical value of a t-test?</h3>
  • The critical value is found using a calculator.

The inputs are:

  • The tail.
  • The amount of degrees of freedom, which is one less than the sample size.
  • The significance level.

In this problem, we have a<u> lower(left-tailed) test, with 10 - 1 = 9 df and a level of significance of 0.1</u>, hence the critical value is t^{\ast} = -1.383.

You can learn more about the t-distribution at brainly.com/question/26062194

5 0
3 years ago
The sum of 2 consecutive integers is one less than 3 times the smaller integer find the 2 integers
aalyn [17]

The two consecutive integers are 2 and 3

<em><u>Solution:</u></em>

Let x and x + 1 are the two consecutive integers

Let "x" be the smallest integer

Let "x + 1" be the larger integer

<em><u>Given that, sum of 2 consecutive integers is one less than 3 times the smaller integer</u></em>

Therefore,

sum of 2 consecutive integers = one less than 3 times the smaller integer

sum of 2 consecutive integers = 3 times the smaller integer - 1

x + x + 1 = 3(x) - 1

2x + 1 = 3x - 1

3x - 2x = 1 + 1

x = 2

Thus the smaller integer = x = 2

Larger integer = x + 1 = 2 + 1 = 3

Thus the two consecutive integers are 2 and 3

5 0
4 years ago
2. Solve for x in the triangle shown below.
Free_Kalibri [48]

Answer:

The answer D) because you add the same variable's which leave you with 2x-4

Step-by-step explanation:

first do positive 7-4-1=2. after that do the variables which get you 2x+1x+1x=4x

6 0
3 years ago
Read 2 more answers
A shopping channel shipped 467,023 packages last year. What is a reasonable estimate of the number of packages shipped?
mixas84 [53]
<span>The number is 470, 000


To explain further:
An example is
14,494 </span>
<span>To round off the height value to the nearest thousand we can use the expanded from to clarity the position of numbers which is: </span>
<span>10, 000 = ten thousand </span>
<span>4, 000 = thousands </span>
<span>400 = hundreds </span>
<span>90 = tens </span>
<span>4 = ones </span>
<span>Here we can notice than four thousand is the value where the nearest thousands is placed. Hence we can round off the number of 14, 494 into 14, 000. Notice 0-4 rounding off rules.<span>
</span></span>
7 0
3 years ago
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