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2 years ago

A. All real numbers

Mathematics

1 answer:

motikmotik2 years ago

3 0

Answer:

B all real numbers

Step-by-step explanation:

what is the domain of the function (B)

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What is 5(x-6)+2=7x-6

kvasek [131]

Answer:

x = -11

Step-by-step explanation:

$5(x-6)+2 = 7x-6\\5x -30 +2 = 7x - 6\\5x -28 = 7x -6 \\5x - 28 + 6 = 7x -6 +6 \\5x -22 = 7x\\5x -5x -22 = 7x - 5x\\-22 = 2x\\-22 / 2 = 2x / 2\\-11 = x$

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2 years ago

Find the RANGE for the function f(x) = -4x - 9 if D = {1/2 ,0}

White raven [17]

Answer:

-11, and -9 is the range for 1/2 and 0 respectively

Step-by-step explanation:

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2 years ago

Which of the following is equivalent to the expression below?

pentagon [3]

I think the answer is a

4 0

2 years ago

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What's |5| + |–7|?

Marizza181 [45]

Answer:

C) 12

Step-by-step explanation:

Absolute value always means it is the positive version of the number

This switches -7 to 7 and 5 stays the same.

5 + 7 = 12

4 0

3 years ago

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Write three consecutive numbers starting with number n+1, where n is natural number. Find the sum of those numbers and prove tha

netineya [11]

Consecutive numbers differ by one, which means that if you start with a certain integer $x$ , you obtain the next integer by adding one.

So, if you start with $n+1$ , the three consecutive numbers are

$n+1,\quad (n+1)+1 = n+2,\quad (n+2)+1 = n+3$

The sum of these three numbers is

$(n+1) + (n+2) + (n+3) = 3n+6$

This number is divisible by 3 because you can write it as

$3n+6 = 3(n+2)$

Note that this is true in general: the sum of three consecutive numbers is always divisible by three, because it is three times the middle number.

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2 years ago