3 years ago

What is x in x + 4 = -x - 4

Mathematics

2 answers:

OleMash [197]3 years ago

8 0

Answer:

x = - 4

Step-by-step explanation:

x + 4 = - x - 4

x + x = - 4 - 4

2x = - 8

x = - 8/2

x = - 4

VashaNatasha [74]3 years ago

4 0

Answer: -4

Step-by-step explanation:

You might be interested in

Find a. Round it to the nearest tenth

jok3333 [9.3K]

Answer:

42637646e6r7r7e7464664

6 0

3 years ago

Which shows the factored form of x2 – 12x – 45?

densk [106]

Answer:

Answer : 0 = ( x + 3)( x -15)

6 0

3 years ago

Put in order from least to greatest: quart, pint, gallon, liter, cup

cricket20 [7]

From least to greatest
1) cup
2) pint
3) quart
4) liter
5) gallon

4 0

3 years ago

How many numbers lie between the squares of 39 and 40

Amiraneli [1.4K]

Answer:

i guess its 1...

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

On a standardized exam, the scores are normally distributed with a mean of 165 and astandard deviation of 40. Find the z-score o

vladimir1956 [14]

The Z-score is calculated by the formula below

$\begin{gathered} z-score=\frac{(x-\mu)}{\sigma}_{} \\ \mu=\operatorname{mean} \\ \sigma=s\tan dard\text{ deviation} \\ x=\text{score} \end{gathered}$

Step 2: Substitute the given parameters in the formula

$\begin{gathered} z-\text{score}=\frac{145-165}{40} \\ Z=-\frac{20}{40} \\ Z=-\frac{1}{2} \\ Z=-0.5 \end{gathered}$

Hence, the z-score of a person who scored 145 on the exam is -0.5

8 0

2 years ago