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DIA [1.3K]
3 years ago
11

Which of the following situations can be modeled by the expression -4 + (-7)?

Mathematics
2 answers:
Alisiya [41]3 years ago
6 0

3rd for sure!

Hope that helps

cupoosta [38]3 years ago
5 0

Third option: Elsa lost four points on the last math quiz, and Marc lost seven points. How many total points did they lose?

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Subtraction and division are derived from which principal operations
melisa1 [442]
Subtraction and division are from the principal operations of PEMDAS. PEMDAS stands for parentheses, exponents, multiply and divide, add and subtract and thats it! Hope this helps and remember to mark as brainliest!
8 0
3 years ago
Solve the equation by factoring: x2 − 7x + 12 = 0
Gnoma [55]

Answer:

x = 3 . . . or . . . x = 4

Step-by-step explanation:

The factored form is ...

(x -3)(x -4) = 0

The zero product rule tells you the solutions are the values of x that make the factors be zero:

x = 3

x = 4

_____

Comment on factoring

When the leading coefficient is 1, the coefficient of the x-term is the sum of the constants in the binomial factors, and the constant term is their product. You can see this by multiplying out the generic case:

(x +a)(x +b) = x^2 +(a+b)x + ab

What this means is that when you're factoring, you're looking for factors of the constant that add up to give the coefficient of the x-term. Here, the x-term is negative and the constant is positive, so both factors will be negative.

12 = -1×-12 = -2×-6 = -3×-4

The sums of these factor pairs are -13, -8, -7. Clearly, the last pair of factors of 12 will be useful to us, since that sum is -7. So, the binomial factors of our equation are ...

(x -3)(x -4) = 0

___

If the leading coefficient is not zero, the method of factoring is similar, but slightly different. Numerous videos and web sites discuss the method(s).

7 0
3 years ago
What happens to the value of f(x) = log4^x as X approaches zero from the right
VARVARA [1.3K]

Answer: F(x) approaches - infinity

Step-by-step explanation:

6 0
3 years ago
What is 406,823 rounded to the nearest ten thousand
Anvisha [2.4K]
Either 407,00 or 406,900
8 0
3 years ago
Mr. Hauseman has 17 students in his class, three of which are freshman and the others are sophomores and juniors. He is going to
Grace [21]

Answer:

17 I think because as know that 34-17 is 17.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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