Mathematics College

How many real and how many are imaginary
Please Explain how to do it

How Many Real And How Many Are ImaginaryPlease Explain How To Do It

Answers

Answer 1

Answer:

no idea bud

Step-by-step explanation:

Answer 2

Answer:

There are no real solutions, and 2 imaginary solutions.

Step-by-step explanation:

There are no real solutions since the function never touches the x-axis and it does not have any roots. Imaginary solutions always come in pairs, and since the exponent degree of x is 2, there are 2 solutions to the problem. You can find the imaginary solutions by plugging the equation into the quadratic formula.

Related Questions

There are 15 students on the chess team. Seven of the students are in the fourth grade.

Which shows the fraction of the team that is in the fourth grade?

A.

4

5

B.

7

15

O

C

8

15

OD. 15

7

Answers

Answer:

7/15 (B)

Step-by-step explanation:

7 fourth graders out of 15 total = 7/15

Please help on this question!

Answers

Answer:

d

Step-by-step explanation:

What is the VALUE of the underlined digit? 4,289,302 7,390,276​

Answers

Answer:

8 is 10trillion and 7 is 1 million hope this helps!

Step-by-step explanation:

You have a problem. You are running out of M&Ms (the candy). Originally, you had 200 small pieces. Last week, you got a little excited and ate 151 pieces of your original amount in one week (7 days). You are determined to last the remaining M&Ms for exactly one more week. If you eat the same amount every day, how many pieces will you be able to eat each day?

Create an equation to show how you would find the number of M&M pieces you could now have each day.
What is the answer to your equation in part 1? What steps did you take to solve your equation?
Please explain how you know your equation is correct.

Answers

Answer:

49 = 7m

m = 7

Step-by-step explanation:

200 - 151 = 49

There are 49 M&M's left

m = M&M's per day

7(7) = 49

Answer:

49 ÷ 7 = 7

Step-by-step explanation:

200 - 151 is 49 so 7 beacuase 49 divided by 7 is 7

Solve the following system of linear equations by graphing:
2x + 2y = 10
8x + 8y = 24

Answers

Answer:

Step-by-step explanation:

-8x - 8y = -20

8x + 8y = 24

0 ≠ 4

2y = -2x + 10

y = -x + 5

8y = -8x + 24

y = -x + 3

inconsistent

180 miles in 4 hours at what rate how long will it take to drive 270 miles

Answers

Answer:

6

Step-by-step explanation:

180 / 4 = 45

45mi = 1hr

270 / 6 = 45

Using the diagram below, what is the length of PR (Please answer within 10 min it's on a time limit.)

Answers

Answer:

oof

Step-by-step explanation:

Question- What method would you happen to be using to solve this problem?

The length of the base of an isosceles triangle is x. The length of a leg is 4x - 2. The perimeter of the triangle is 95. Find x.

Answers

Answer:

x = 11

Step-by-step explanation:

sides of triangle measure: 'x', '4x-2' and '4x-2' since isosceles means both legs are equal

perimeter is the sum of all sides, so set up equation:

95 = 4x - 2 + 4x - 2 + x

95 = 8x - 4 + x

95 = 9x - 4

99 = 9x

x = 11

Identify the expression 64^(1/2) shows the following number rewritten as a radical.
√(1/2&64)
√64
1/2 √64
8
Show your work.

Answers

Answer:

√64

Step-by-step explanation:

In mathematics, an expression involving the root (√) sign is regarded as a radical.

64^(1/2)

This is the same as;

√64

- √(1/2&64) This option is wrong.

- √64 This option is correct

- 1/2 √64  This option is wrong.

- 8 This option is wrong.

Find the exact value of sec795°

Answers

Answer:

I believe the answer would be [tex]\sqrt{6}+\sqrt{2}[/tex] or 3.8637

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

I don’t know what to do please help

Answers

Answer:

d i think can u give me a bainliest

Step-by-step explanation:

12. Ryan deposited $3,500 in a savings account with
an interest rate of 3% per year. How much simple
interest will he earn in 4 years?

Answers

The answer to this question is 420 dollars

Suppose that c is a number for which the equation c÷c = 1 is false. What is c?

Answers

Zero is the answer as 0/0 is 0, not 1

The function d = 16t2 models the distance d, in feet, that an object falls in t seconds. Find the inverse function and use the inverse function

o estimate the time it takes an object to fall 100 feet. (1 point)

Answers

Answer:

[tex]t = \frac{1}{4}\sqrt d[/tex]

Time to reach 100ft is 2.5 seconds

Step-by-step explanation:

Given

[tex]d = 16t^2[/tex]

Solving (a): Determine the inverse function

[tex]d = 16t^2[/tex]

Swap the positions of d and t

[tex]t = 16d^2[/tex]

Make d the subject

[tex]\frac{t}{16} = d^2[/tex]

Take positive square root of both sides

[tex]\sqrt{\frac{t}{16}} = d[/tex]

[tex]d = \sqrt{\frac{t}{16}}[/tex]

[tex]d = \frac{1}{4}\sqrt t[/tex]

Swap the positions of d and t

[tex]t = \frac{1}{4}\sqrt d[/tex] --- The inverse function

Solving (b): Find t when d =100

Substitute 100 for d in [tex]t = \frac{1}{4}\sqrt d[/tex]

[tex]t = \frac{1}{4}\sqrt {100[/tex]

[tex]t = \frac{1}{4}* 10[/tex]

[tex]t = \frac{1* 10}{4}[/tex]

[tex]t = \frac{10}{4}[/tex]

[tex]t = 2.5[/tex]

Select the statements which could describe the graph of a non proportional relationship.

A. The y-intercept is positive.

B. The y-intercept is 0.

C. The line intersects the origin.

D. The y-intercept is negative.

(can be more than one answer)*

Answers

The answer to this question is A and D

How many shirts do they have altogether
Lee has 7x - 12 shirts and Bruce has
11x + 3 shirts. How many shirts do they
have altogether?

Answers

Answer:

18x - 9

Step-by-step explanation:

[tex](7x - 12) + (11x + 3)\\7x - 12 + 11x + 3\\18x - 9[/tex]

the answer is..
18x - 9
explanation-

11x + 3
7x - 12 (combine like terms)

combine the x’s
11x + 7x = 18x

combine the other numbers!
-12 + 3 = -9

put them together (bc you can’t further any math they are different)
18x - 9

Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease.

y=57(0.4)^x

Answers

Answer:

Decay, 60%

Step-by-step explanation:

Remember that the exponential function is written in the form [tex]y=ab^x[/tex]. In this problem, a=57 and b=0.4. A function is considered a growth function when [tex]b>1[/tex]. Since 0.4 not greater than 1, this is an exponential decay function.

Now, to find the rate of decrease we can use part of the form [tex]y=a(1-r)^x[/tex].

[tex]1-r[/tex] represents the percentage decrease, in this case, 0.4. If that entire term is 0.4, we need to solve for [tex]r[/tex].

[tex]1-r=0.4\\r=0.6[/tex]

So, the rate of percentage decrease is 60%.

I hope this helps!

I solved it myself and my result is (n+1)/n. Why is that 1/2 there? An explanation would be great if possible. Thanks!

Answers

Answer:

The product of (k + 1) series starts with 3 (because k = 2) and you need 2 to be multiplied to this in order to get (n + 1)!

Therefore you need to multiply 2 and 1/2 to make it right. 2 completes the factorial and 1/2 remains.

Hope it was clear explanation.

which is the best estimate for the sum of 2 7/8 + 2 4/5=
​

Answers

Answer:

6 because I would estimate 2 7/8 to 3 and 2 4/5 to 3 so 3 + 3 = 6

Write an equation of the parabola with focus (0, 10) and vertex at the origin

Answers

Answer:

f(x) = (1/10)x²

Step-by-step explanation:

This is the answer that  I think it is but I am not sure if it is right...

Hope this helps!

jessica earned 70% on an exam. if she earned 14 points, what was the total number of points possible on the exam?

Answers

20. We say 14/.70 to get 20.

Answer:

20

Step-by-step explanation:

you just divid the number of points earned (14), by the percent earned (70). This gives you the total becuase you would divid 14 by the total to get 70.

Reflect (5,-5) in (a) the x-axis and (b) the y-axis.

Answers

Answer:

a. (5,5)

b. (-5,-5)

Step-by-step explanation:

reflection over x-axis flips the sign of y-coordinate

reflection over y-axis flips the sign of x-coordinate

What is the solution to x-4≤6?

Answers

Answer:

x - 4 _< 6

Step-by-step explanation:

Carl wants to estimate the number of students in 5th grade who like to play basketball. He needs to create a random sample of students. How should Carl collect his sample? Carl should ask 30 students who are playing football. Carl should ask 30 students who are playing basketball. Carl should ask 30 students who go to the same school. Carl should ask 30 5th–grade students.

Answers

Answer:

ask 30 5th grade students

Step-by-step explanation:

if you only ask a certain group then you wont get a accurate answer

How many ways can the teacher choose a group of 5 students to present on the first day if Marjorie must present on the first day?

Answers

15 ways a teacher can chose the group

Answer:

126

Step-by-step explanation:

please help I'll give brainliest to the correct answer.

A triangle has side lengths 5, 7, and 11. Classify the triangle by it's angles. show your work.​

Answers

Answer:

it is probably a right triangle

Step-by-step explanation:

right angle because 11 is 7 beside and 5 under

Answer:

i think its a right angle, not sure tho

Step-by-step explanation:

What is the equation of the line that is parallel to the
given line and passes through the point (-2, 2)?

Answers

Answer:

undefined

Step-by-step explanation:

Need help with this question thanks :)

Answers

Answer:

Omar could invite 19 friends.

Step-by-step explanation:

the equation for this word problem would be

5x+30=125

subract 30 from both sides

5x=95

divide both sides by 5

x=19

Answer:

(125-30) divided by 5. Your answer is 19.

Step-by-step explanation:

subtract 30 from 125 and your left with 95. Divide 95 by 5 and you get 19.

I need help on this badly please come with good explanation on how to slove problems like this.​

Answers

Answer:

Step-by-step explanation:

This is a parabola. Because of that, the extreme exists at either the highest point on the graph or at the lowest point on the graph (which is also known as the vertex). This is a positive parabola, so the vertex is a minimum. The coordinates of the vertex are (4, -2.5). The 4 is the x value; therefore, the value of x where the polynomial has an extreme (or extrema) is at x = 4

Determine the order pair and quadrant for each point:
A.
B.
C.

Answers

Answer:

A: (-4,1) QUAD 2

B: (-1, -3) QUAD 3

C: (2,5) QUAD 1

D: (5, -4) QUAD 4

Step-by-step explanation:

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