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dlinn [17]
1 year ago
15

Solve the absolute value equation. 1x1 + 2 = 11 Select the correct choico bolo EN

Mathematics
1 answer:
Alecsey [184]1 year ago
3 0

Given data:

The given expression is |x|+2=11.

The given expression can be written as,

\begin{gathered} |x|+2=11 \\ |x|=9 \\ x=-9\text{ or 9} \end{gathered}

Thus, the value of x is 9 or -9.

You might be interested in
-2x^2+4x-1 from 6x^2+3x-9
kirza4 [7]

Answer:

8{x}^{2}  - x   - 8

Step-by-step explanation:

We want to subtract

- 2 {x}^{2}  + 4x - 1

from

6 {x}^{2}  + 3x - 9

We set up the subtracttion problem to get:

6 {x}^{2}  + 3x - 9 - ( - 2 {x}^{2}  + 4x - 1)

We expand the parenthesis to get:

6 {x}^{2}  + 3x - 9  + 2 {x}^{2}   - 4x  + 1

Group similar terms:

6 {x}^{2}   + 2 {x}^{2} + 3x- 4x  + 1 - 9

We simplify to get:

8{x}^{2}  - x   - 8

4 0
3 years ago
Estimation is best defined as: a. both a process of inferring the values of unknown samples statistics from those of known popul
Ghella [55]

Answer:

Option D is the correct answer - Estimation is best defined as   a process of inferring the values of unknown samples statistics from those of known population parameters

Step-by-step explanation:

Estimation involves the usage of the value of a statistic derived from a sample to estimate the value of a corresponding population parameter.

The sample provides information that can be extended, through several formal or informal processes, to determine a range most suitable to describe the missing information.

An estimate that turns out to be incorrect would either be termed as over-estimation or under-estimation. If the estimate exceeds the actual result, it is termed as an over-estimation, and as an under-estimation, if the estimate came short of the actual result.

Thus, option D is correct.

8 0
3 years ago
A train traveled 450 kilometers (450 km) east from its starting point for 9 hours (9 h). What was the average speed of the train
elixir [45]

Answer:

You need to find the average for your numbers

Step-by-step explanation:

4 0
3 years ago
Jack and Jill start driving from the same location. Jack drives 30 miles south while Jill drives west. If Jack and Jill are 78 m
arsen [322]

Answer:

72 mles

Step-by-step explanation:

For better understanding, I'll make use of an attachment.

From the attachment,

O represents the start point

OB = 30 --- Jack

AB = 78 -- Distance between them

Required

Find OA; Jack's distance

To do this, we make use of Pythagoras theorem

AB^2 = OA^2 + OB^2

This gives:

78^2 = OA^2 + 30^2

6084 = OA^2 + 900

Subtract 900 from both sides

OA^2=  6084 - 900

OA^2=  5184

Take square roots

OA = \sqrt{5184}

OA = 72

<em>Hence, Jill drove 72 miles</em>

5 0
3 years ago
What is the algebraic expression for "two times the sum of a number n and 24"?
konstantin123 [22]

Answer:

B. 2(n + 24)

Step-by-step explanation

you need to find the sum of n and 24 first so you put it in brackets. To multiply by two just put 2 on the outisde of the brackets.

Hope this helps

3 0
3 years ago
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