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2 years ago

Evaluate -2 - (-4) -2

Mathematics

2 answers:

GenaCL600 [577]2 years ago

6 0

The answer for this question is 0

Diano4ka-milaya [45]2 years ago

5 0

Answer:

Step-by-step explanation:

-(-4) cancels out to be positive 4. So -2+-2+4= -4+4, which is equivalent to 0

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Please help me!

Zigmanuir [339]

Answer:

s = 14

Step-by-step explanation:

Step 1: Combine like terms.

$(\frac{2}{3}s + \frac{5}{6}s) = 21$
$(\frac{4}{6}s + \frac{5}{6}s) = 21$
$\frac{9}{6}s = 21$
$\frac{3}{2}s=21$

Step 2: Multiply both sides by 2/3.

$\frac{3}{2}s * \frac{2}{3} = 21 * \frac{2}{3}$
$s = \frac{42}{3}$
$s = 14$

8 0

2 years ago

Which of the five measures of center (the mean, the median, the trimmed mean, the weighted mean, and the mode) can be calculated

almond37 [142]

Mean because it is the average

3 0

3 years ago

Vic and Paulo work on different levels in an underground coal mine. Vic's level is at an elevation of −70.51 meters relative to

lisov135 [29]

Answer:

A. Paulo's level is −34.42 meters lower than Vic's level.

Step-by-step explanation:

-104.93 - (-70.51) = -104.93 + 70.51 = -34.42

4 0

3 years ago

One equation in a system of linear equations is y=2x+1

Rufina [12.5K]

Step-by-step explanation:

Given equation:

y = 2x + 1

a. write a second equation so that (1,3) is the only solution of the system

To have only one solution the equation must have a different slope.

Let it be 10, then the y-intercept of y = 10x + b is:

3 = 1*10 + b ⇒ b = -7

And the equation:

y = 10x - 7

b. Write a second equation so that the system has infinitely many solutions

To have infinitely many solutions, both equations must be same:

y = 2x + 1

c. Write a second equation so that the system has no solutions.

To have no solutions, the equations must have same slope but different y-intercepts:

y = 2x + 5

3 0

3 years ago

A data set of with whole numbers has a low of 20 and a high value of 89

Vikentia [17]

Answer:

The range is 69

Step-by-step explanation:

We have that the least value of the data set is 20 and the highest value is 89.

From the available information, we can only find the range of the data set.

The range is the highest value minus the least value.

This implies that, the range is $89-20=69$

7 0

2 years ago