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3 years ago

Plss help me with this:(((

Mathematics

1 answer:

TEA [102]3 years ago

5 0

C
B
C

hope it helps

#carry on learning

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A polynomial function has -5√3i as a root. Which of the following must also be a root of the function?

yan [13]

Answer:

-5+√3i is the given root so -5-√3i must be the other root

Step-by-step explanation:

We know that complex roots must come in pairs. The pairs are complex conjugates. (a+bi) and (a-bi)

You are missing a sign between -5 and the square root

So if - 5+ sqrt(3) i is a root, then -5 - sqrt(3) i must be a root

if -5 - sqrt(3)i is a root, then -5 + sqrt(3)i must be a root.

I will assume you missed a + sign

-5+√3i is the given root so -5-√3i must be the other root

5 0

4 years ago

Read 2 more answers

A bus travels 36 miles in 45 minutes. What number of miles would the bus travel in 60 minutes at this rate?

marusya05 [52]

Answer:

48 miles.

Step-by-step explanation:

A bus travels 36 miles in 45 minutes

In 60 minutes, travelling at this rate, the bus would cover:

$\frac{60}{45}$ × 36 miles = 48 miles

4 0

3 years ago

Read 2 more answers

How many terms are in the expression below? 3x + 4x - 3

Lunna [17]

In the expression, there are 3 terms.

3x and 4x are like terms because the variables are identical.

Also, we have a constant term which is -3.

7 0

3 years ago

Sandra saves 8% of her salary for retirement. This year her salary was $2,000 more than in the previous

Tanya [424]

Answer:

$\$40000$

Step-by-step explanation:

Let's start by finding Sandra's salary this year.

We are given that she saved $3,360 or 8% of her total salary this year.

Let's represent her total salary this year as "x" and set up an equation:

$\$3360=8\%x\\$

Note that any percentage is equivalent to that number over 100.

$$3360=\frac{8}{100}x$

Multiply 100 to both sides:

$336000=8x$

Divide both sides by 8

$x=42000$

The question states "this year her salary was $2000 more than in the previous year".

This means that her salary in the previous year is equivalent to:

$42000-2000=40000$

4 0

3 years ago

First do 5,000,000 x 0.1% = 5,000. Then do 5,000 x 99% and your answer is $4,950

elena55 [62]

Your answer is $4,950 xD

6 0

3 years ago

Plss help me with this:(((​

Plss help me with this:(((