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krok68 [10]
3 years ago
6

What is the opposite of 2? :D

Mathematics
2 answers:
Juliette [100K]3 years ago
8 0

Answer:

-2

Step-by-step explanation:

Opposite number or additive inverse of any number (n) is a number which, if added to n, results in 0, the identity element of addition. The opposite number for n is written as −n.

Anna007 [38]3 years ago
6 0

Mathematical key for opposite numbers:

The opposite of a negative number is its positive number.

The opposite of a positive number is its negative number.

Therefore, the opposite of 2 is -2.

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Elizabeth attempts a field goal by kicking a football from the ground with an initial vertical
sammy [17]

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\bf h(t)=-16t^2+64t+0\implies h(t)=-16t^2+64t\implies \stackrel{\textit{hits the ground}~\hfill }{0=-16t^2+64t} \\\\\\ 0=-16t(t-4)\implies t= \begin{cases} 0\\ \boxed{4} \end{cases}

Check the picture below, it hits the ground at 0 feet, where it came from, the ground, and when it came back down.

5 0
3 years ago
PLZ HELP AND EXPLAIN THIS PLZ
AURORKA [14]

Answer:

A. <u>4</u> trucks will make $80 because 4 × 20 = 80, so they need to wash <u>38</u> cars to make the other $380 because 38 × 10 = 380.

($80 + $380 = $460)

B. <u>15</u> trucks will make $300 because

15 × 20 = 300, so they need to wash <u>16</u> cars to make the other $160 because 16 × 10 = 160. ($300 + $160 = $460)

C. <u>21</u> trucks will make $420 because

21 × 20 = 420, so they need to wash <u>4</u> cars to make the other $40 because 4 × 10 = 40.

($420 + $40 = $460)

D. <u>27</u> trucks will make $540, so they won't have to wash any cars because they would have already exceeded their goal of $460.

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7 0
2 years ago
A scientist measured the exact distance between two points on a map and came up with the following number: 0.04000 km.
stellarik [79]

Answer:

The first zero after decimal point and 4 only

Step-by-step explanation:

Despite having 5 decimal points, the rules of significant figures dictate that unless there is a digit other than zero after, the only significant numbers are those that come before zero. For this case, the significant digits are only 0.04 but if it was 0.0400005 then all the other zeros would have also be considered significant.

5 0
3 years ago
Kate is saving to take an SAT prep course that costs $250, so far , she has saved $150, and she adds $10to her savings each week
matrenka [14]

Answer:

It will be ten weeks

Step-by-step explanation:

First you would need  to find out what is 250 - 150 = 100 So they will need 100 dollars 100 divided by 10 is 10 so that will be 10 weeks

7 0
3 years ago
If x is 5, then 6x = _____. 30 x 5 x 30
marin [14]

Answer:

6x = 30

Step-by-step explanation:

6x

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6*5 = 30

6x = 30

8 0
2 years ago
Read 2 more answers
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