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Eva8 [605]
3 years ago
7

How can you determine the number of solutions for an equation

Mathematics
1 answer:
ryzh [129]3 years ago
5 0
The way to determine the number of solutions is to complete the problem in multiple different ways.
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Whats the error?Jonah says a common denominator for 3/4 and 2/5 is 9.What is Jonahs error?
sammy [17]
In order to get the common denominator when adding fractions or subtracting fractions, you have to make sure  that the denominator of the two items are divisible by each other. In this case, 9 is not divisible by any of the given denominators which is 4 and 5. So in this case, the common denominator will have to be 20. 5 x 4 will equal to 20 and you will also multiply 3 x 5 to get the new numerator. After that, you will multiply 2 x 4 to get the new numerator of the other fraction. The new fractions will be 15/20 and 8/20. From there, you can add or subtract
6 0
3 years ago
Log7 (-5k-3)=log7 -4k
exis [7]

Answer:

k = -3

Step-by-step explanation:

log7(-5k - 3) = log7 (-4k)

---> -5k - 3 = -4k

-k - 3 = 0

k = -3

5 0
3 years ago
What is the multiplicative identity of -12/13
Nata [24]

Answer:

The number '1' is called the 'multiplicative identity' of a number '-12/13' because it does not change the number '-12/13' after getting multiplied by it.

Therefore, option (B) is true.

Step-by-step explanation:

We know that when a number let say 'n' get multiplied by '1', it remains unchanged.

i.e.

  • n × 1 = n
  • 1 × n = n

The number '1' is called the 'multiplicative identity' of a number 'n' because it does not change the number 'n' after getting multiplied by it.

Given the number

-12/13

Multiply the number '-12/13' by '1'.

i.e.

-12/13 × 1 = -12/13

1 × -12/13 = -12/13

Thus, the number '1' is called the 'multiplicative identity' of a number '-12/13' because it does not change the number '-12/13' after getting multiplied by it.

Therefore, option (B) is true.

5 0
3 years ago
10. Determine if the triangles are congruent.
leva [86]

Answer:SAS

Step-by-step explanation:

4 0
3 years ago
I can’t seem to find the shaded area
mel-nik [20]

Answer:

8/21

Step-by-step explanation:

1- 2/7 - 1/3 = 21/21 - 6/21 - 7/21 = 8/21

5 0
3 years ago
Read 2 more answers
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