What are the complex zeros of y= x2 + 9?

Answers

Answer 1

Answer:

±[tex]\sqrt{-9}[/tex] or ±3i

Step-by-step explanation:

x² = -9

x = ±[tex]\sqrt{-9}[/tex] or ±3i


Related Questions

f the simple interest on ​$4000 for 6 years is ​$1440​, then what is the interest​ rate?

Answers

Answer:

Step-by-step explanation:

[tex]rate=\frac{interest \times 100}{principle \times time } \\=\frac{1440 \times 100}{4000 \times 6 } \\=6 \%[/tex]

What is the algebra steps to solve -16 + 3y = -10 ?

Answers

Answer:

-16+3y=-10

subtract -10 from both sides

-6+3y=0

divide by 3

-2+y =0

y=2

if you can pleaseeeeee give me the algorithm of -7-12 i will markkkkk BRAINLIESTTTTTTTTT :) HELPPPPPPP

Answers

Answer:

84

Step-by-step explanation:

Minus 7 times minus 12 equals io 84 as the minus cancels out when u multiply by 2 minus because a minus and a minus equals to a positive

The table shows the number of cell phone towers a company will build as the number of its customers increases. Complete a and b below.
Cell Phone Towers
Customers​ (thousands)
Towers
3.25
169
4.25
221
5.25
273
7.25
377
a. Is the relationship between number of towers and number of customers​ proportional? Explain. Choose the correct answer below​ and, if​ necessary, fill in the answer box to complete your choice.
A.
Yes. The ratios of towers to customers​ (thousands) are all equivalent to a unit rate of nothing.
B.
No. The ratios of towers to customers are not all equivalent.

Answers

Answer:

A.

Step-by-step explanation:

Divide 169 by 3.25 and you get 52.

Divide 221 by 4.25 and you get 52.

Do this for all of the rest, and they will all be 52.

Hope this helps!

Yes. The ratios of towers to customers​ (thousands) are all equivalent to a unit rate of nothing. Therefore, option A is the correct answer.

What is a proportional relationship?

Proportional relationships are relationships between two variables where their ratios are equivalent.

The given table is

Cell Phone Towers          Customers​ (thousands) Towers

        3.25                                          169

        4.25                                          221

        5.25                                          273

        7.25                                          377

Here, the ratio of Cell Phone Towers : Customers​ (thousands) Towers

3.25 : 169

= 325/16900

= (325÷325)/(16900÷325)

= 1/52

4.25 : 221

= 425/22100

= 1/52

5.25 : 273

= 525/27300

= 1/52

7.25 : 377

= 725/37700

= 1/52

Therefore, the ratio of given cell phone towers to customers​ (thousands) towers are equivalent.

To learn more about the proportional relationship visit:

brainly.com/question/12917806.

#SPJ5

what is the answer help!!

Answers

Answer:

b

Step-by-step explanation:

Answer:

The answer is B

Step-by-step explanation:

Jimmy determines that he needs to sell more than $250 worth of fruit at his produce stand in order to make a profit. Which inequality represents the fruit sales, s, in dollars, for which Jimmy will make a profit?

Answers

Answer:

The inequality that represents the fruit sales is [tex]s > 250[/tex].

Step-by-step explanation:

Let [tex]s[/tex] the fruits sales of Jimmy, measured in dollars. Given that he needs to selle more than $ 250 of fruit at his produce stands in order to make the profit, he needs to satisfy the following inequation or inequality:

[tex]s > 250[/tex]

Josette found 16 coins in her purse. She had 2 more nickels than pennies and 7 fewer quarters than pennies. Josette modeled the scenario in a table and then wrote the equation p + (p + 2) + (7 – p) = 16.

A 2-column table with 3 rows. Column 1 has entries pennies, nickels, quarters. Column 2 has entries p, p + 2, blank.

Is Josette’s equation correct? If not, what was her mistake.

Answers

Answer:

The number of quarters was translated incorrectly and should be p – 7.

Answer:

D. The number of quarters was translated incorrectly and should be p – 7.

I'm taking the assignment and I got it right just now

Step-by-step explanation:

use natural logarithms to solve the equation. round to the nearest thousandth. show work!! 5e^(2x+11) =30

Answers

Answer:

x = -4.604

Step-by-step explanation:

Here, we want to get the value of x

We start by dividing through by 5

e^(2x + 11) = 30/5

e^(2x + 11) = 6

Writing this in natural logarithm form, we have;

ln 6 = 2x + 11

2x + 11 = 1.792

2x = 1.792-11

2x = -9.208

x = -9.208/2

x = -4.604

The value of x from the given equation is

x=-4.604

Given :

[tex]5e^{2x+11} =30[/tex]

To solve for x , we need to get exponent 'e' alone

First we divide both sides by 5

[tex]e^{2x+11} =6[/tex]

Now we write the given exponent in logarithmic form

Lets take ln on both sides

[tex]lne^{2x+11} =ln6\\(2x+11)lne=ln(6)\\[/tex]

The value of ln(e) is 1

[tex](2x+11)=ln(6)\\2x+11=ln(6)\\subtract \; 11 \; on \; both \; sides\\2x=ln(6)-11\\Divide \; both \; sides \; by \; 2\\x=\frac{ln(6)-11}{2} \\x=-4.60412[/tex]

The value of x from the given equation is

x=-4.604

Learn more :  brainly.com/question/185913

Destiny has $ 42 left on her checking account. If she writes a check for $ 59, what will Destiny's balance be?

Answers

Answer:

$-17

Step-by-step explanation:

Answer:

im pretty sure the other person got it correct

2 Fifth grade scholars voted on where they would like to go on their next field trip. Of all the scholars who voted, 1 10voted for the Natural History Museum, 5 8voted for the Planetarium, and the rest voted for the Botanical Garden. If a total of 80 scholars voted, how many scholars voted for the Botanical Garden?

Answers

Answer:

NHM: 80/10 = 8, 8 X 1 = 8

P: 80/8 = 10, 10 X 5 = 50

BG: 80 - 50 - 8 = 22

botanical gardens 22

After examining daily receipts over the past year, it was found that the green parrot italian restaurant has been grossing over $2200 a day for about 85% of it's business days.

Answers

Complete question is;

After examining daily receipts over the past year, it was found that the green parrot italian restaurant has been grossing over $2200 a day for about 85% of it's business days. Using this as a reasonably accurate measure, find the probability that the green parrot will gross over $2200:

A. At least 5 of the next 7 business days.

B. at least 5 of the next 10 business days.

C. less than 3 of the next 5 business days.

d. Exactly 7 of the next 10 business days

e. At least 1 of the next 5 business days.

Answer:

A) P(X ≥ 5) = 0.9262

B) P(X ≥ 5) = 0.9986

C) P(X ≤ 2) = 0.0266

D) P(X = 7) = 0.1298

E) P(X ≥ 1) = 0.9999

Step-by-step explanation:

This is a binomial probability distribution problem and as such we will use the formula;

P(X = k) = C(n, k) × p^(k) × (1 - p)^(n - k)

A. At least 5 of the next 7 business days will be;

P (X ≥ 5) = P(X = 5) + P(X = 6) + P(X = 7)

P(X = 5) = C(7, 5) × 0.85^(5) × (1 - 0.85)^(7 - 5)

P(X = 5) = 0.20965

P(X = 6) = C(7, 6) × 0.85^(6) × (1 - 0.85)^(7 - 6)

P(X = 6) = 0.396

P(X = 7) = C(7, 7) × 0.85^(7) × (1 - 0.85)^(7 - 7)

P(X = 7) = 0.320577

Thus;

P(X ≥ 5) = 0.20965 + 0.396 + 0.320577

P(X ≥ 5) = 0.9262

B. Probability of at least 5 of the next 10 business days will be;

P(X ≥ 5) = P(X = 5) + P(X = 6) + P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10)

From online binomial calculator attached, we can see that the answer is;

P(X ≥ 5) = 0.9986

C. Probability of less than 3 of the next 5 business days will be;

P(X ≤ 2) = P(X = 0) + P(X = 1) + P(X = 2)

From online binomial calculator attached, we can see that the answer is;

P(X ≤ 2) = 0.0266

D. Probability of exactly 7 of the next 10 business days will be;

P(X = 7) = C(10, 7) × 0.85^(7) × (1 - 0.85)^(10 - 7)

P(X = 7) = 0.1298

e. Probability of at least 1 of the next 5 business days will be;

P(X ≥ 1) = P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5)

From third image attached using online binomial calculator, we have;

P(X ≥ 1) = 0.9999


Find the area of the
regular figure below:

A) 160.5 km2
B) 166.2 km2
C) 173.8 km2
D) 182.4 km2
E) 189.1 km2

explain pls

Answers

Answer:

Option C : 173.8 km² is the correct answer.

Step-by-step explanation:

Given that:

Side length = 6 kilometers

A shape with 8 sides is called an octagon, therefore, the given figure is an octagon.

Area of octagon is given by;

Area = [tex]2(1+\sqrt{2})a^2[/tex]

Putting a=6

Area = [tex]2(1+\sqrt{2})(6)^2[/tex]

Area = [tex](2+2\sqrt{2})(36)[/tex]

Area = 173.82

Rounding off to one decimal place

Area = 173.8 km²

Hence,

Option C : 173.8 km² is the correct answer.

What is thе a value? *
у= 2х – 15)? + 3
а
2
o15
о
З
o-15

Answers

Answer:

i dont know

Step-by-step explanation:

Umm what do I do here?

Answers

Answer:

X is equal to 1.2

Step-by-step explanation:

6/5 equals 1.2

i don't have to sound rude but can i have brainliest please i need 4 more :')

find the slope
(x, -4) and (2, 8); m = -3

Answers

Answer:

x=6

slope (m) = -3

Step-by-step explanation:

A number pattern starts with 10 and follows the rule multiply by 3 what is true about all of the number in the pattern

Answers

Answer:

Each answer multiplied by 10 that lead to the ultimate answer for 10 x 3 will be even.

Step-by-step explanation:

10×1= 10

10×2= 20

10×3= 30

The exterior angles of a quadrilateral have measures of 72 degrees, 58degrees, 2x degrees, and 3x degrees. Find the value of x.

Answers

Answer: x = 46

Step-by-step explanation: The theorem is:

The sum of all exterior angles of a polygon is 360

Here, our polygon is a "quadrilateral" -- 4 sided figure

We can say that the sum of all 4 exterior angles is 360. We set up an equation and solve for x. Shown below:

The value of x is 46

Answer: Answer: x = 46

Step-by-step explanation: The theorem is:

The sum of all exterior angles of a polygon is 360

Here, our polygon is a "quadrilateral" -- 4 sided figure

We can say that the sum of all 4 exterior angles is 360. We set up an equation and solve for x. Shown below:

The value of x is 46

Step-by-step explanation:

determine if parallel y = X X + y = -2

Answers

Answer: they are not

Step-by-step explanation:

y=x has a slope of 1 because the m value is 1.

x+y=-2 has a slope of -1 because when we subtract x from both sides, we get that y=-x-2 and the m value is -1

whats 3^2? thank you.

Answers

Answer:

9

Step-by-step explanation:

3*3

3^2 is the same as 3 times 3, so it’s 9

What the answers plz plz

Answers

2- 59
3- m
1- 24

Hope it helps

Step-by-step explanation:

a. 73-24+24=73

b. 59+35-35=59

c. k+m-m=k

What is the classification of the given polynomial (x + y)(a + b2)?

A.binomial
B.trinomial
C.multinomial
D.monomial

Answers

Answer: C

Step-by-step explanation: there are 4 different variables (x, y, a, and b)

I need help with this ​

Answers

The orders are 1 stay the same. 2 change to 4, 3 change to 2, 4 change to 3, and 5 stays the same.

Multiple: 1/ 8 & 2/ 4  = 1 · 2/ 8 · 4  = 2/ 32  = 1 · 2/ 16 · 2  = 1/ 16   Multiply both numerators and denominators. Result fraction keep to lowest possible denominator (lowest=2). In the next intermediate step , cancel by a common factor of 2 gives 1/ 16 .  In words - one eighth multiplied by two quarters = one sixteenth.

Final result: 1/16

A board is 48 in long. It must be divided into 4 pieces of equal length, and each cut will cause a waste of 3/16 in. How long will each piece be after the cuts are made?

Answers

Answer:

12 pieces

Step-by-step explanation:

Total length of the board = 48 in

It must be divided into 4 pieces of equal length

This means, there will be 3 cut to have 4 pieces

Each cut will cause a waste of 3/16 in.

Total waste = 3 cut × 3/16 in

= (3*3)/16

= 9/16 in

Length of board remaining = Total length of the board - Total waste

= 48 - 9/16

= (768-9)/16

= 759/16 in

How long will each piece be after the cuts are made?

Length of each piece after the cut = Length of board remaining / 4

= 759/16 ÷ 4

= 759/16 × 1/4

= 759/64

= 11.859375

Approximately 12 pieces to the nearest whole number

what is the distance between the points?! round to the nearest tenth i need to show work

Answers

Answer:

8.6

Step-by-step explanation:

To find the distance between two points we use the formula posted below

All we need to do is figure out what the points are on the graph and plug them into the formula... we end up with

the square root of (5-(-2)^2+(2-(-3)^2 and get the answer of 8.602325267

then we round to the nearest tenth and get 8.6

What is the approximate area of
the circle? Use 3.14 for T.
25 in.
A. 78 square inches
B. 157 square inches
C. 491 square inches
D. 1,963 square inches

Answers

Answer:

D. 1,963 square inches

Step-by-step explanation:

Using the formula of the area of the circle A= [tex]\pi[/tex][tex]r^{2}[/tex] and assuming that the radius is 25 inches.

Then,

A = [tex]\pi[/tex](25 inches)^2

A = (3.14)(25inches)^2

A = 1,963 square inches

However, you did not state that r = 25 inches, so this might not be correct, but  good luck and I hope this helps a little!

identify the y-intercept from the following graph

Answers

Answer:

the y-intercept is -1 bc that is where it meets (0,-1)

Step-by-step explanation:

please help me it’s a picture

Answers

Answer:

1,2,4, and the last one

Step-by-step explanation:

That's my final answer

please help me answer this

Answers

Answer:

10.77

Step-by-step explanation:

by using Pythagoras theorem we can find the distance between the points,

so...

distance between the points, which is the hypotenuse will be xy

difference between the y coordinates will be dy

difference between the x coordinates will be dx

according to pythagoras theorem,

[tex]xy^{2} = dx^{2} + dy^{2} \\xy^{2} = (-6-(-2))^{2} + (-5-5)^{2}\\xy^{2} =(-4)^{2} +(-10)^{2} \\xy^{2} =16+100\\xy^{2} =116\\xy =\sqrt{116} \\xy=10.77[/tex]

A student earns a grade of 80% on a math test with 20 questions how many questions did the student get correct. ( round to the nearest whole number)

Answers

Answer:

he or she got 18 right

Step-by-step explanation:

each question is worth 1 point .

if they where worth 10 each

making the answer 80%

Can someone help me put I’m lost?

Answers

Do they mean like give you an expression/equation or to tell them what kind. For example, “Distribution, Combine like terms, Substitution,etc.”
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