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sineoko [7]
3 years ago
7

5+7 can you cell me answer fasr

Mathematics
1 answer:
irina1246 [14]3 years ago
5 0

Answer:

12

Step-by-step explanation:

This is an example of Addition property between two positive integers (i.e. whole value numbers), which means the result will be positive and larger than the two numbers.

The result of the addition would be:

5 + 7 = 12

Another way to do it if you are struggling a bit you can write the value of 7 as 7 = 5 +2 so then you can say:

5 + (5 + 2) = 5 + 5 + 2 = 10 + 2 = 12

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What is the solution of the system of equations​
Alona [7]

Answer:

A solution to a system of equations means the point must work in both equations in the system. So, we test the point in both equations. It must be a solution for both to be a solution to the system.

Step-by-step explanation:

5 0
3 years ago
How do I solve 4cos^2 x -1=0
tekilochka [14]
(cosx)^{2} = 1/4 <=> cosx = +1/2 or cosx = -1/2;
cosx = +1/2 => x = +π/3 + 2kπ, where k is an integer or x = -π/3 + 2kπ, where k is an integer;
cosx = -1/2 => x = +2π/3 + 2kπ, where k is an integer or x = -2π/3 + 2kπ, where k is an integer;
5 0
3 years ago
Read 2 more answers
Does anyone know this?
Veseljchak [2.6K]

Answer:

option number a -4 and -9

7 0
3 years ago
If f(x) = 8x2 + 4x - 12. Find f(2)<br> f(2)=
posledela

Answer:

f(2) = 28

Step-by-step explanation:

\rm f(x) = 8 {x}^{2}  + 4x - 12

\rm Evaluate \:  8 x^2 + 4 x - 12 \:  where  \: x = 2: \\  \\  \rm \implies f(2) = 8 \times {2}^{2}  + 4 \times 2 - 12 \\  \\   \rm \implies f(2) = 8 \times 4 + 8 - 12 \\  \\   \rm \implies f(2) = 32 - 4 \\  \\   \rm \implies f(2) = 28

3 0
3 years ago
How do I solve this problem?
kondor19780726 [428]

Answer:

Its A

Step-by-step explanation:

4/5 - 0.5     Convert the fraction to a decimal:-

= 0.8 - 0.5

= 0.3

6 0
3 years ago
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