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34kurt
3 years ago
6

No need to show work only need answer thx!

Mathematics
1 answer:
Stella [2.4K]3 years ago
5 0
X=-5, X=4 hope this helps
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Write n times 7 as an expression
nikdorinn [45]

Answer:

7n

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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
Can someone tell me the answer please
arsen [322]
Part A: 65/90 because you take the given number of positive test and put it over the total number of test.
Part B: it’s dependent because it depends on the negative to get the probability/likely hood.
7 0
2 years ago
What is the resluf of convertig 14 inches into centimeters? Remember that 1 inch =2.54 centimeters.
stich3 [128]

multiply 14 x 2.54

14 x 2.54 = 35.56 centimeters

6 0
3 years ago
Consumer Math work. Please help
Firdavs [7]

Answer:

$337.5

Step-by-step explanation:

He would get $337.5 because if he gets $11.25 every hour you just multiply $11.25 by 30 hours.

7 0
3 years ago
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