All categories

3 years ago

-8+ square root of -20 /24

Mathematics

1 answer:

wolverine [178]3 years ago

6 0

The square root of negative numbers is either "not allowed" (Case 1) or it results in imaginary roots (Case 2).

-8+ square root of -20 /24 "not allowed," Case 1

-8+ square root of -5/6 = -8 plus or minus i times sqrt(5/6)

5√6

= -8 plus or minus i times --------- (Case 2)

You might be interested in

Which of the following shows an example of the identity property of 0?

nevsk [136]

D

Identity property of 0 for addition means a number plus 0 will still be that same number. So -756 + 0 is still -756

3 0

2 years ago

Hey has 15 teaspoons of chocolate chips. She uses 1 1/2 teaspoons for each muffin.The total number of teaspoons of chocolate chi

kaheart [24]

Answer:

The graph is attached.

- The meaning of the x-intercept is: The number of muffins she made by using all of teaspoons of chocolate chips

- The meaning of the y-intercept: The number of teaspoons of chocolate chips she had before she made any muffin.

Step-by-step explanation:

Given the equation of the line:

$y=-\frac{3}{2}x+15$

We need to find the x-intercept and the y-intercept.

To find the x-intercept, we must substitute $y=0$ into the equation and solve for "x":

$0=-\frac{3}{2}x+15\\\\-15=-\frac{3}{2}x\\\\(-15)(-\frac{2}{3})=x\\\\x=10$

To find the x-intercept, we can substitute $x=0$ into the equation and evaluate:

$y=-\frac{3}{2}(0)+15\\\\y=15$

Now we know that the line passes through these points:

$(10,0)\\\\(0,15)$

Then we can graph the equation.

The graph is attached.

Then, analizing the graph, we can conclude that:

- The meaning of the x-intercept is: The number of muffins she made by using all the teaspoons of chocolate chips.

- The meaning of the y-intercept: The number of teaspoons of chocolate chips she had before she made any muffin.

6 0

3 years ago

Given that f(x) = x2 + 12x + 32 and g(x) = x+ 4, find (f - g)(x) and

frosja888 [35]

Answer:

x²+11x+28

Step-by-step explanation:

(f - g) (x) = f(x) - g(x)

x² + 12x + 32 - (x + 4) = x² + 11x + 28

6 0

2 years ago

John runs every day. The number of miles that he runs varies per day. Write a variable expression to show John's total miles for

Alekssandra [29.7K]

In this item, we are given that the number of miles that John runs every day vary. Therefore, it is just rightful that we use three different variables for the number of miles he ran for three days. For the purpose of representation in this item, we let the variables be x, y, and z. The total miles he ran is equal to the sum of the three variables. Let T be the total and that would be equal to,

 T = x + y + z

4 0

3 years ago

If you invest 2,000 today in a bank that gives you a 4 percent annual interest rate, which of these items can you buy in seven y

postnew [5]

I=prt
i=2000 X .04 X 7
i = 560
So you earned 560 after 7 years, plus your 2000 you started with
You can get C

8 0

3 years ago

Read 2 more answers