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3 years ago

Please please helppppppppppppp

Mathematics

1 answer:

Leya [2.2K]3 years ago

3 0

Answer:

Step-by-step explanation:

Both lines start and end on x = 3

The lower line has a positive slope and a y- intercept of - 2

The lower line has an open circle at it's endpoint indicating it cannot equal 3

x - 2 for x < 3

The upper line has a positive slope and a y- intercept of - 1, if we project the line. The line has a closed circle at it's start indicating it can equal 3, thus

x - 1 for x ≥ 3

Hence

x - 1 if x ≥ 3

x - 2 if x < 3 → C

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What is the midpoint between -2-3i and 3+9i

Svetlanka [38]

Answer:

1/2 + 3i is the midpoint between -2-3i and 3+9i.

Step-by-step explanation:

Given the complex number

-2-3i

3+9i

The formula to find the midpoint of two complex number (a + bi) and (c + di) is:

$M=\frac{\left(a+c\right)}{2}+\frac{\left(b+d\right)i}{2}$

$M=\frac{\left(-2+3\right)}{2}+\frac{\left(-3+\left(9\right)\right)i}{2}$

$M=\frac{-2+3+\left(-3+9\right)i}{2}$

$M=\frac{1+6i}{2}$

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Therefore, 1/2 + 3i is the midpoint between -2-3i and 3+9i.

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3 years ago

Write the numbers -2.1, -1.8, -2.5 and -2.7 from greatest to least.

Fiesta28 [93]

Answer:

-1.8, -2.1, -2.5, -2.7

Step-by-step explanation:

the bigger the negative number, the smaller it is

5 0

3 years ago

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Ruden bought 6 new books for his collection, increasing his collection by 12%. How many books did he have before his purchase?

forsale [732]

Answer:

he had 44 books before he bought those 6

Step-by-step explanation:

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3 years ago

F(x) = 2x + 3<br> What function is this

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Answer:

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3 years ago

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Suzie made a mistake in the following problem. The mistake was made in Line ___. Only input the number of the first incorrect li

zalisa [80]

Answer:

Mistake in Line 2

Step-by-step explanation:

Line 1

7(6) ÷ 5 + 42

Line 2

7(6) ÷ 5 + 16

Line 3

42 ÷ 5 + 16

Line 4

42 ÷ 21

Line 5

To simplify any expression we use order of operation

Line 1 is 7(6) ÷ 5 + 42

Order of operation is PEMDAS

First we start with parenthesis

so we multiply 7(6) in line 2

7*6- 42

So Line 2 is 42 ÷ 5 + 42

Hence there is a mistake in Line 2

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3 years ago