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goldfiish [28.3K]
3 years ago
11

Which of the following is positive? -(-31), -(31), -31, 0-31

Mathematics
2 answers:
Kamila [148]3 years ago
7 0

Answer:

-(-31)

Step-by-step explanation:

BartSMP [9]3 years ago
3 0
It would be -(-31) because a negative and negative is a positive
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What’s the answer to this question?
Sonja [21]

Answer: The correct answer is additive inverse.

Step-by-step explanation: The additive inverse is the number that you add to another that has a total of 0. In this case, the additive inverse of 14 is negative 14.

4 0
3 years ago
Help:) (no links please)!!!!
ICE Princess25 [194]
The answer is 9 miles!
3 0
2 years ago
A train leaves Philadelphia at 2:00 PM. A second train leaves the same city in the same direction at 4:00 PM. The second train t
polet [3.4K]

Answer: First train speed shall be 42 mi/hr

Second train speed shall be 84 mi/hr

Yes it is the valid answer, it gets annoying when almost everyone enters the wrong answer for a good laugh. Either way, hope this helps! Have a spectacular day.

Step-by-step explanation:

What is the 1st train's head start in miles?

Let +s+ = the speed of the 1st train in mi/hr

From 2PM to 4PM is 2 hrs

+d%5B1%5D+=+s%2A2+

---------------------

Let +d+ = distance the 2nd train travels until

it overtakes the 1st train

From 4PM to 6PM is 2 hrs

Start time when the 2nd train leaves

---------------------

Equation for 1st train:

(1) +d+-+2s+=+s%2A2+

Equation for 2nd train:

(2) +d+=+%28+s%2B42+%29%2A2+

--------------------

Substitute (2) into (1)

(1) +%28+s%2B42+%29%2A2+-+2s+=+s%2A2+

(1) +2s+%2B+84+-+2s+=+2s+

(1) +2s+=+84+

(1) +s+=+42+

and

+s%2B+42+=+42+%2B+42+

+s+%2B+42+=+84+

------------------

The 1st train's speed is 42 mi/hr

The 2nd train's speed is 84 mi/hr

---------------------------

check:

(2) +d+=+%28+s%2B42+%29%2A2+

(2) +d+=84%2A2+

(2) +d+=+168+

and

(1) +d+-+2s+=+s%2A2+

(1) +d+-+2%2A42+=+42%2A2+

(1) +d+=+84+%2B+84+

(1) +d+=+168+

8 0
2 years ago
Please help .A spinner is divided into 6 equal sections. Each section is marked with one of the numbers 1 through 6. Miguel want
RUDIKE [14]

Answer:

The answer is C

Step-by-step explanation:

7 0
2 years ago
The histogram shows the distribution of minting year for a sample of
Anettt [7]

All the parts of the questions about the given histogram have been answered below.

<h3>What is a histogram?</h3>
  • A histogram is a graph that depicts the frequency of numerical data using rectangles.
  • The vertical axis of a rectangle represents the distribution frequency of a variable (the amount, or how often that variable appears).

(A) The distribution of minting year:

According to the histogram, the distribution of minting years is 1900-1910 and 1940-2020.

(B) The median:

Add the two middle numbers together and divide them by two to get the median.

10 + 15 / 2 = 12.5

So, the median is somewhere between 10-15.

(C) The range:
The range is computed by subtracting the lowest and highest values.

25 - 0 = 25

So, the range is 25.

(D) The potential outliers:

According to the histogram, the potential outliers are 1910-1940.

Therefore, all the parts of the questions have been answered.

Know more about histograms here:

brainly.com/question/2962546

#SPJ4

8 0
1 year ago
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