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2 years ago

Simplify the expression. 2 (-5 - 7j)

Mathematics

2 answers:

Kaylis [27]2 years ago

8 0

The answer is: -10-14j

Natali [406]2 years ago

5 0

Answer:

- 14j -10. the answer online

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Gre4nikov [31]

Answer:

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8 0

2 years ago

Read 2 more answers

Pls help me with the inverse operation of this problem. Best answer gets brainliest

timurjin [86]

Answer:

x=7

Step-by-step explanation:

I believe we are solving for x. In that case, let us start by moving 1 to the other side.

$\frac{4(x+3)}{5} = 8$

Now, we want to get rid of that denominator of 5. Let us multiply both sides by 5:

$4(x+3)=40$

Now, we may divide both sides by 4 to get rid of the coefficiant:

$x+3=10$

When we subtract both sides by 3, we get

x=7

<em>I hope this helps! :)</em>

6 0

2 years ago

when a pair of shoes is sold at 12.5% discount, the selling price is 78.75. Find the original price of the pair of shoes and the

faltersainse [42]

The original price was 90$ so you saved 11.25$

3 0

3 years ago

Which choices are equivalent to the expression below? Check all that apply

ipn [44]

The expression which is equivalent to √(-9) is 3i.

<h3>What is Complex number?</h3>

A complex number is the sum of a real number and an imaginary number. A complex number is of the form a + ib and is usually represented by z.

Here, given expression;

y = √(-9)

y = √9 X √(-1)

y = 3√(-1)

y = 3i

Thus, the expression which is equivalent to √(-9) is 3i.

Learn more about Complex number from:

brainly.com/question/10251853

#SPJ1

5 0

1 year ago

The Mayors of two small towns that adjoin a large community have engaged in an argument on which of their cities is safer, with

Lelu [443]

Answer:

1. City A: 150 violent crimes per 100,000 residents.

City B: 161 violent crimes per 100,000 residents.

2. City A

Step-by-step explanation:

City A:

Population = 123,000

Violent crimes = 185

Violent crimes per 100,000 people:

$V_{100k} = \frac{185*100,000}{123,000} \\V_{100k} = 150$

City B:

Population = 84,000

Violent crimes = 135

Violent crimes per 100,000 people:

$V_{100k} = \frac{135*100,000}{84,000} \\V_{100k} = 161$

1. City A: 150 violent crimes per 100,000 residents.

City B: 161 violent crimes per 100,000 residents.

2. Even though it has a bigger number of crimes, City A has the lowest crime rate since its population is larger.

5 0

3 years ago