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mafiozo [28]
3 years ago
9

What is –9 – (–13) and how do you solve

Mathematics
1 answer:
olga_2 [115]3 years ago
4 0
The answer is 4. you distribute the negative to make a positive sign and then add
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Please help ASAP show work^
Art [367]

Answer:x=6

Step-by-step explanation: Remove the radical by raising each side to the index of the radical

4 0
3 years ago
A car starts with a dull tank of gas. After driving around 5he city, 1/7 of the gas has been used. With the rest of the gas in t
Sati [7]

Answer:

\frac{2}{7}

Step-by-step explanation:

Given:

A car starts with a dull tank of gas

1/7 of the gas has been used around the city.

With the rest of the gas in the car, the car can travel to and from Ottawa three times.

Question asked:

What fractions of a tank of gas does each complete trip to Ottawa use?

Solution:

Fuel used around the city = \frac{1}{7}

Remaining fuel after driving around the city = 1 - \frac{1}{7}

                                                                         =    \frac{7 - 1}{7}  = \frac{6}{7}

According to question:

As from the rest of the gas in the car that is \frac{6}{7}, the car can complete 3 trip to Ottawa  which means,

By unitary method:

The car can complete 3 trip by using = \frac{6}{7} tank of gas.

The car can complete 1 trip by using =  \frac{6}{7} \div 3

                                                             =\frac{6}{7} \times\frac{1}{3}

                                                             =  \frac{6}{21}

                                                             = \frac{2}{7} tank of gas

Thus, \frac{2}{7} tank of gas used for each complete trip to Ottawa.

5 0
3 years ago
Check off the methods of differentiation required, and complete the derivative.
kogti [31]

Given:

f(x)=\sqrt[]{5x^2-2}

f(X) will be differentiated by chain rule.

\begin{gathered} f^{\prime}(x)=\frac{1}{2\sqrt[]{5x^2-2}}\lbrack5(2x)\rbrack \\ f^{\prime}(x)=\frac{5x}{\sqrt[]{5x^2-2}} \end{gathered}

6 0
1 year ago
X =<br><br> 12<br> 9<br> 6 2/3<br> help me out please you guys are awesome ^-^
vitfil [10]

the answer is x =  6 2/3

ok done. Thank to me :>

4 0
3 years ago
Write the equation of the line passing through the points (−1, 2) and (3, 4)
lina2011 [118]

Answer:

2/4

Step-by-step explanation:

Using a graph, you would start at (-1,2). Next you would move up twice. Then you would move 4 lines to the right. You'll land on (3,4)

6 0
4 years ago
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