Mathematics College

Find the zeros of the function
k(x) = -5x² - 125
The zeros of k are x= □ and x= □​

Answers

Answer 1

Answer:

x = ±5i

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Alg II

√-1 is imaginary number i

Step-by-step explanation:

Step 1: Define function

k(x) = -5x² - 125

Step 2: Find roots

Set function equal to 0:                    0 = -5x² - 125Factor out -5:                                     0 = -5(x² + 25)Divide both sides by -5:                    0 = x² + 25Subtract 25 on both sides:               -25 = x²Rewrite:                                              x² = -25Square root both sides:                     x = ±√-25Rewrite:                                              x = √-1 · ±√25Evaluate:                                             x = ±5i

Related Questions

28 students travel on a field trip. They bring a van that can seat 12 students

Answers

Answer:

16 students will not be riding in that van today

Answer:16 students would be left behind or they would have to get another bus with 4 students in one bus

bus 1 =12 kids bus2=12 kids bus 3=4 kids

Step-by-step explanation:

If the ordered pair (a, b) satisfies the inequality. y > x-4, three of these statements are
true. Which statement is NOT true?

Answers

Answer:

If you subtract 4 from a, it will be greater than b

Step-by-step explanation:

Ok, so in order to solve this, it would be easier to substitute (a,b) into the equation:

b>a-4

Ok, next, you just have to work out each individual question to see which one is incorrect. You can immediately know it is the first one, and this is because we know that B is larger in this equation, but the problem says that subtracting 4 from a would be greater than b. This is incorrect, b is greater than 4-a, so the top left would be your answer.

Hope this helps!  

Find the length, width and perimeter of 3 possible different rectangles given the area of 12 square units.​

Answers

Answer:

1.L=4;W=3;P=14

2.L=6;W=2;P=16

3.L=12;W=1;P=26

Step-by-step explanation:

because i know

You move up 3 units and left 3 units. You end at (-2, 0). Where did you start? Plz help

Answers

Answer:

-1, 3

Step-by-step explanation:

3 units up and 3 units to the left should work on 1,-3

(1,-3). If your new point is at (-2,0) you would move down 3 and right 3 to find the original point.

What additional information could be used to prove that triangle XYZ is congruent to triangle Fe.g. using asa or aas check all that apply

Answers

i hope this was able to help!!

answer: Answer: ∠Z ≅ ∠G and XZ ≅ FG or ∠Z ≅ ∠G and XY ≅ FE are the additional information could be used to prove that ΔXYZ ≅ ΔFEG using ASA or AAS. we need only one angle and side.

Answer:

its the first one and the last one ..that's the answer.

you have a bill of $56.40.find a 20% tip?​

Answers

Answer:

11.28

Step-by-step explanation:

Answer:

29

Step-by-step explanation:


3) The measure of the angle which is equal to its supplement is

Answers

Answer:

Step-by-step explanation:

90 degrees

x + y = 180

x = y

x + x = 180

2x = 180

x = 180/2

x = 90

Both the angle and its supplement = 90

600:450 and 4:3 why is it equivalant

Answers

Answer:

600 ÷ 4 = 150

450 ÷ 3 = 150

The same thing either way.

They are considered proportional ratios

Because 600:450 is the same as 4:3 because divide 600 by 150=4
And 450 divide by 150=3 which makes them equivalent

Plz I REALLY NEED HELP
A drawing on a transparency is 6.5 inches wide and 3 inches long. The width of the image of the drawing projected onto a screen is 13 feet. How long, in feet, is the drawing on the screen?

Answers

6inches long on the screen

Necesito ayuda con una Integral por sustitución trigonométrica, Por favor!

Answers

Answer:

1/4xdarctan(2/7x)+C


what is 25 divided by 7 expressed as a mixed number

Answers

The answer to this problem is 3 4/7. :)

Which expression is equivalent to 6 (a minus 3)?

Answers

Answer:

6a-18

Step-by-step explanation:

reflection across y= -x

Answers

Answer:

option A) is correct.

Step-by-step explanation:

As we know that when we reflect across the line [tex]y=-x[/tex], the x-coordinate and y-coordinate would change places and be negated.

So the formula about the reflection across [tex]y=-x[/tex] will be:

(x, y) ⇒ (-y, -x)

From the graph, the vertices of the triangle are:

Vertex U = (-5, -2)Vertex T = (-3, -3)Vertex V = (-5, -5)

As the rule of reflection across [tex]y=-x[/tex] will produce the image with the vertices T', U' and V' which are as follows:

(x, y) ⇒ (-y, -x)

U(-5, -2) ⇒ (-y, -x) = U' (2, 5) T(-3, -3) ⇒ (-y, -x) = T' (3, 3) V(-5, -5) ⇒ (-y, -x) = V' (5, 5)

So, the vertices of U', T' and V' will be:

U' (2, 5) T' (3, 3) V' (5, 5)

Therefore, option A) is correct.

Can someone help me with this?

Answers

Plug in 5 for x
4(5) = 4 * 5 = 20

Answer:

20

Step-by-step explanation:

4x. x=5

4*5 20

Hope this helps hit the crown :D

Convert 01100111 from binary to hexadecimal.

Answers

The answer is 67 says google

Will give brainliest if u help!!! Thank you!

Answers

so the slop intercept equation is y= mx+b, so you take the 1/2x and plot it on the X axis. then since the slop is 1, you go over one, up one. and then that is how you graph the equation.

Help someone that knows

Answers

For the question I think it would probally be A :)

I need to know the answers please

Answers

It is 180 - 65

Which is 115 which would be your answer
I believe 115 is also the answer

n= 101
p= 0.24
p(0.20 < p <0.30) =

Answers

Answer:

N = 101

p = 0.24

p ( 0.2 ) < p < 0.3

Step-by-step explanation:

I NEED HEL:P PLEASE ALL OF THIS

Answers

Answer:

sorry

Step-by-step explanation:

fjdskafjksl;fjklads;nvkanrdjknfvjlrcpd

GUYS, I GOTM 1MILLIO0N DOLARS IN THE STOCK MAARKAT HOW MUCH IS 1 MILLION DOLLARS IN NE GOTIABLE US CUERENCY CONVERTED TO RUSSIAN RUBELS????/// PLS ILL GIV BRANLEST!11

Answers

Hi! I believe your answer is 77,435,300.00 Russian Rubles, which is equivalent to 1,000,000 U.S. dollars. I hope this helps you! Good luck and have a great day. ❤️✨

Answer:

76,922,200.00 RUB

Step-by-step explanation:

wow how in the heck did you do that 0-o your rich dude pls explain how u did it T-T

How would I do this?

-8 -x = x -4x

Answers

Answer:

71

Step-by-step explanation:

yw72wo9838388382828228

Jill purchased 50 game points
at the arcade for $20. If he
wanted to buy 250 game
points, how much would he
spend?

Answers

Answer:

He would spend 100 dollars :)!

100 dollars he would spend for 250 game points

The heights of women in the USA are normally distributed with a mean of 64 inches and a standard deviation of 3 inches.

Required:
a. A random sample of six women is selected. What is the probability that the sample mean is greater than 63 inches?
b. What is the probability that a randomly selected woman is taller than 66 inches?
c. What is the probability that the mean height of a random sample of 100 women is greater than 66 inches?

Answers

Answer:

(a) 0.2061

(b) 0.2514

(c) 0

Step-by-step explanation:

Let X denote the heights of women in the USA.

It is provided that X follows a normal distribution with a mean of 64 inches and a standard deviation of 3 inches.

(a)

Compute the probability that the sample mean is greater than 63 inches as follows:

[tex]P(\bar X>63)=P(\frac{\bar X-\mu}{\sigma/\sqrt{n}}>\frac{63-64}{3/\sqrt{6}})\\\\=P(Z>-0.82)\\\\=P(Z<0.82)\\\\=0.20611\\\\\approx 0.2061[/tex]

Thus, the probability that the sample mean is greater than 63 inches is 0.2061.

(b)

Compute the probability that a randomly selected woman is taller than 66 inches as follows:

[tex]P(X>66)=P(\frac{X-\mu}{\sigma}>\frac{66-64}{3})\\\\=P(Z>0.67)\\\\=1-P(Z<0.67)\\\\=1-0.74857\\\\=0.25143\\\\\approx 0.2514[/tex]

Thus, the probability that a randomly selected woman is taller than 66 inches is 0.2514.

(c)

Compute the probability that the mean height of a random sample of 100 women is greater than 66 inches as follows:

[tex]P(\bar X>66)=P(\frac{\bar X-\mu}{\sigma/\sqrt{n}}>\frac{66-64}{3/\sqrt{100}})\\\\=P(Z>6.67)\\\\\ =0[/tex]

Thus, the probability that the mean height of a random sample of 100 women is greater than 66 inches is 0.

I need help ASP Jason bought a video game for $60.00. He sold it for $72.00. What was the percent of the markup?

Answers

I believe he made a 17% profit

A wire of length $100 cm is bent into a rectangle. If the length of the rectangle is $10 cm more than its breadth, find the area of the rectangle.

Answers

Answer:

the answer is equal to $1000cm

Write an equation in Slope-Intercept Form for a line that passes through (2, 2) and (0, 3).

Answers

iduusuufbjsdyzjvuehjddhjdik


Draw 3 rows of 10 oranges.


Answers

we cannot help you with that, sorry

Answer:

what?

how do i draw on here

Step-by-step explanation:

The stem-and-leaf plot shows the ages of people at a family reunion.

Stem Leaf
0 1 3 3 5 6 8 9
1 1 2 3 5 9
2 0 1 2 9
3 0 0 1 2 5
4 4 5 8
5 0 1 6 7
6 1 3 5 5 7
7 0 2 5
Key: 3 | 5 = 35 years old

How many people at the family reunion are not adults (under the age of 18)?

There are
people at the family reunion who are not adults.


Question 2
How many people at the family reunion are over the age of 65?

There are
people over the age of 65.

Answers

Answer:

1) 11

2) 4

Step-by-step explanation:

1) It is 11 because in the first row we ignore the 0 since it is referring to the first digit, so the first row has 7. In the second row, we ignore the one so it would be 4 because the 9, or would be 19, is above 18.

2) It is 4 because there is one person over 65. In the second row we ignore the 7 and there are 3 people in the 7 row.

why is it important to know whether a number is positive or negative

Answers

its good to know if a number is positive or negative because something as simple as forgetting the signs such as - + could drastically change your answer

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