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Harrizon [31]
1 year ago
15

Which of the following shows √-25 simplified and written as a complex number?

Mathematics
1 answer:
skelet666 [1.2K]1 year ago
4 0

-5i

Step-by-step explanation:

simplify: √-25 → 5i

put the opposite sign: 5i → -5i

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When factored completely, the expression 3x? – 9x + 6<br> equivalent to<br> is
vodka [1.7K]

Answer:

Step-by-step explanation:

The given quadratic expression is

3x² - 9x + 6

Dividing each term in the expression by 3 in order to simplify it further, it becomes

x² - 3x + 2 = 0

We would determine two numbers such that their sum or difference is -3x and their product is 2x².

The two numbers are - 2x and - x.

Therefore,

x² - 2x - x + 2

x(x - 2) - 1(x - 2)

(x - 1)(x - 2)

When the expression is factored completely, it is equivalent to

(x - 1)(x - 2)

6 0
2 years ago
Given f(x)= √7x and g(x) = 1/x-8 which value is in the domain of f^o g
bekas [8.4K]

Answer: x>8

Step-by-step explanation: when we plug g(x) into f(x) we get sqrt7(1/x-8) and when you graph (as shown below) this you see that the graph has a vertical asymptote of 8 therefore the domain is x>8

8 0
3 years ago
Can you please help me get this done it’s due TOMORROW!
siniylev [52]

Answer:

Hi  , the answer is 280-140/ 4-2 = 140/2  

y = 2/140 x

b .  70 beats each minute

Step-by-step explanation:  

we will  take a 2 point from the graph

(280,4) , (y1,x1)    and (140, 2) , (y2,x2)      each point represent a (y,x)  point

m = y1-y2 / x1-x2   = 280-140 / 4-2 = 140 /2

now , y/x = 140/2 ... by B. Multiplication we will get y = 2/140 x  

b .

from the graph we see that every minute  the curve increase 70 beats

Thanks

8 0
2 years ago
2. Lawn tickets cost $30 each and seat tickets cost $50
Andreas93 [3]
Okay so.
If lawn tickets are $30 and seat tickets are $50 and they sold 200 seat tickets.
50 multiplied by 200 is = $ 10,000
And the goal is $14,000.
So $14,000 subtract $10,000 is $4000
$4000 is how much they made in Lawn Tickets. In order to calculate how much lawn tickets were sold, is dividing $4000 by $30 since lawn tickets are $30.
4000 divided by $30 = 133
Not sure if this is correct but all the working and steps are correct! Hope this helps.
6 0
2 years ago
A rectangle has a length of
Marina CMI [18]

rectangle has a length of

18 feet. The width is x feet

less than the length. If the

area must be less than 216

square feet, what could be

the measurement of the

width?

6 0
2 years ago
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