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Tamiku [17]
3 years ago
9

X to the 2nd power minus 6 equals 1

Mathematics
2 answers:
alexandr402 [8]3 years ago
3 0

Answer:

2.646

Step-by-step explanation:

You have to 6 to the 1 and then take the square root of the number which is seven leaving you with 2.646

musickatia [10]3 years ago
3 0

Answer:

x = ±√7

Step-by-step explanation:

Symbolically, we have x^2 - 6 = 1,  and so x^2 = 7, so that x = ±√7

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Fred has 8 dogs. 3 of the dogs are males and 5 are females. What decimal represents the amount of Fred's dogs that are males?
Vaselesa [24]

Answer:

0.375

Step-by-step explanation:

since 3 dogs are males it would be 3/8 since there are 3 male dogs out of all dogs there. 3 divided by 8 = 0.375

4 0
3 years ago
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tatuchka [14]

Step-by-step explanation:

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3 years ago
Consider the function f(x)=10x^2+20x-11
Strike441 [17]

Answer: Vertex = (-1, -21) y-intercept = (0,-11)

Step-by-step explanation:

8 0
4 years ago
8
tia_tia [17]

Answer:

8-6i

Step-by-step explanation:

Multiply out (3-i)^2 in order to find out which expression it is equivalent to.

1) Since the whole quantity is squared, write it out as (3-i)(3-i).

(3-i)^2\\(3-i)(3-i)

2) Multiply binomials by using the FOIL method. Multiply the terms that are listed first in each binomial, then the ones that are listed outermost when looking at both binomials, then innermost, and finally the last terms listed in each binomial. Simplify and combine like terms.

(3-i)(3-i)\\9 - 3i - 3i + i^2

9 - 6i + i^2

3)  i = \sqrt{-1}, so i ^2 must be (\sqrt{-1} )(\sqrt{-1}). Thus, i^2 is equivalent to -1. Knowing this, simplify and combine like terms.

9 - 6i + ((-\sqrt{1} )(\sqrt{-1} ))

9 - 6i -1\\8 - 6i

Thus, it is equivalent to  8 - 6i .

6 0
3 years ago
What is the equation of the line?
umka2103 [35]

Answer:

y=2x+8

Step-by-step explanation:

All of the choices are in slope-intercept, or y=mx+b form where m is the slope and b is the y intercept. Therefore if the slope is 2, and the y intercept is 8 the equation should be y=2x+8.

3 0
3 years ago
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