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Lina20 [59]
3 years ago
10

WILL GIVE BRAINLIEST...Which of the following is equivalent to -2i(6 - 7i)

Mathematics
2 answers:
Sav [38]3 years ago
8 0

Answer:

A: ( 0 - 2i ) ( 6 - 7i )

Step-by-step explanation:

-2i ( 6 - 7i )

= -14 - 12i

( 0 - 2i ) ( 6 - 7i )

= -14 - 12i

NeTakaya3 years ago
6 0

Answer:

(0-2i)(6-7i)

Step-by-step explanation:

The answer to this is pretty straightforward, as if you add a 0 to -2i, it will not change the expression.

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If f(x) = x³ +7x²-x and g(x)=x²-3, What is the degree of g(f(x))?<br> a)2<br> b)3<br> c)6<br> d)8
andrezito [222]

Answer:

<u>c) 6</u>

Step-by-step explanation:

Given :

⇒ f(x) = x³ + 7x² - x

⇒ g(x) = x² - 3

===============================================================

Finding the degree of g(f(x)) :

⇒ Degree of f(x) = 3

⇒ Degree of g(x) = 2

⇒ Therefore, degree of g(f(x)) = degree of f(x) × degree of g(x)

⇒ Degree of g(f(x)) = 3 × 2

⇒ Degree of g(f(x)) = <u>6</u>

5 0
2 years ago
Read 2 more answers
An engineer is designing a fuel tank in the shape of a cylinder. The tank must have a volume of 3,500 cubic inches. The height o
elena-s [515]

Answer: 24 inches

Step-by-step explanation:

Let the radius be represented by x

Therefore, the height will be = 2×x = 2x

Volume of a cylinder = πr²h

where, Volume = 3500

π = 3.14

r = x

h = 2x

We then slot in the values into the formula

Volume = πr²h

3500 = 3.14 × x² × 2x

3500 = 3.14 × 2x²

2x² = 3500 / 3.14

2x² = 1114.65

Divide through by 2

x² = 1114.65 / 2

x² = 557

x = ✓557

x = 23.6 = 24 approximately

The radius is 24 inches

3 0
3 years ago
What is the slope and y-intercept of the function shown in the table? <br> X: 1,4,7 <br> Y:6,12,18
NemiM [27]

Answer:

y=2x*6

Step-by-step explanation:

5 0
4 years ago
In a group of 60 workers, the average salary is $80 a day per worker. if some of the workers earn $75 a day and all the rest ear
Softa [21]

The total number of workers that earn $75 per day is 48

<h3>What is average salary?</h3>

The average salary is calculated based on reported salaries of respondents. The average salary definition is to add the salaries in the sample together, then divide by the number of respondents.

Given that:

In a group of 60 workers, the average salary is $80 a day per worker.

If some of the workers earn $75 a day and all the rest earn $100 a day.

Let 'x' be the total number of workers that earn $75 per day.

So, the total number of workers that earn $100 per day is (60 - x).

As the average salary of 60 workers is $80.

Then,

\frac{75x + 100(60-x)}{60} =80

or, 75 x + 6000- 100x = 80*68

or, -25x= -1200

       x= 48

So, the total number of workers earn $75 per day is 48.

Learn more about the concept here:

brainly.com/question/21835898

#SPJ1

4 0
3 years ago
What is 5 times 5 equal
masya89 [10]

Answer:

25

Step-by-step explanation:

8 0
3 years ago
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