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Ivanshal [37]
3 years ago
14

What is 2-(-8)????? And how do you solve it????

Mathematics
1 answer:
marusya05 [52]3 years ago
8 0
<h3>Answer: 10</h3>

Subtracting a negative is the same as adding a positive. So 2-(-8) is really 2+8 = 10.

With something like 2-8, we start at 2 and move to the left 8 units to arrive at -6 on the number line. When we do 2-(-8), we start at 2 and move 8 units in the opposite direction since -8 is the opposite of 8.

In terms of money, you can think of a negative number as an IOU or it represents the amount of debt. Writing -8 means you are 8 dollars in debt. If we subtract away debt, then we have less of it and effectively its the same as adding dollars to your pocket. Subtracting away 8 dollars of debt is the same as adding 8 dollars to your pocket, which is one interpretation of how 2-(-8) is the same as 2+8.

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guapka [62]

\longrightarrow\sf \:  {18}^{4}  +  {18}^{2}  \\ \sf = 18 \times 18 \times 18 \times 18  +  18 \times 18 \\ \underline{\bf = 105300}

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8 0
3 years ago
Read 2 more answers
In ABC, if the lengths of sides a and c are 8 centimeters and 16 centimeters, respectively, and the measure of C is 35 degrees,
Simora [160]

Answer:

∠ A ≈ 16.67°

Step-by-step explanation:

Using the Sine rule in Δ ABC

\frac{a}{sinA} = \frac{c}{sinC} , substitute values

\frac{8}{sinA} = \frac{16}{sin35} ( cross- multiply )

16 sinA = 8 sin35° ( divide both sides by 16 )

sin A = \frac{8sin35}{16} , thus

∠ A = sin^{-1} ( \frac{8sin35}{16} ) ≈ 16.67° ( to 2 dec. places )

8 0
3 years ago
Write an equation that represents a relationship between the independent and dependent quantities from the table. Identify the r
swat32
The answer would be multiplicative by -2 because every x value can be multiplied by -2 to get the y value
7 0
2 years ago
Xiao bought ​ 4 3/10 ​ gallons of gas that cost $2.50 per gallon.
Ratling [72]

Answer:

maybe the attached image is helpful

3 0
3 years ago
Solve using the substitution method 2x+3y=1 y=x-8
QveST [7]
Subsitute

y=x-8
since y=x-8, subsitute x-8 for y

2x+3(x-8)=1
distribute (a(b+c)=ab+ac)
3(x-8)=3x-24

2x+3x-24=1
combine like terms
5x-24=1
add 24 to both sides
5x=25
divide 5
x=5
subsitute
y=x-8
y=5-8
y=-3

x=5
y=-3 is solution
in (x,y) forom
(5,-3) is the solution
7 0
3 years ago
Read 2 more answers
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