18. Let f(x)=x²+2x+c
For what values of care the roots of f(x) not real?
c<_1
c<1
c1
c>1

Answers

Answer 1

Answer:c<1

Step-by-step explanation:


Related Questions

A line goes through the points (7, 3) and (-1, 5). Write the equation of the line in Point-Slope form. Show your work. Circle your answer.
20 pts and brainliest. please help me on this

Answers

Answer:

The equation of the line is 4y = -x + 19

Step-by-step explanation:

Firstly, we need to get the slope of the line;

Since it is through two points; we have the slope as;

y2-y1/x2-x1 = (5-3)/(-1-7) = 2/-8 = -1/4

Mathematically, we can write the equation of a straight line line as;

y = mx + c

So we have;

y = -1/4x + c

y = -x/4 + c

To complete the equation, we need the value of c.

we can choose any of the points and insert the x and y value

Thus;

3 = -7/4 + c

c = 3 + 7/4

c = 19/4

So our equation becomes;

y = -x/4 + 19/4

Multiply through by 4

4y = -x + 19

Answer:

y-3= -1/4 x (x-7)

Step-by-step explanation:

Find the slope of the line between  

( 7 , 3 )  (7,3)  and  ( − 1 , 5 )  (-1,5)  using  m = y 2 − y 1 x 2 − x 1

m=y2-y1x2-x1 , which is the change of  y/ y  over the change of  x/ x .

Hope this helps! Have a nice day!❤

LCM of 16, 28, and 56

Answers

Answer:

2

Step-by-step explanation:

2x8=16, 2x14=28, and 2x28=56

Shantels net worth is 5,480.80 dollars.Her liabilities are 3,260.60.If she increases her assets by 10% and decreases her liabilities by 10%, what is her net work ​

Answers

Answer:

6681.00

Step-by-step explanation:

Given

Net worth = 5480.80Liabilities = 3260.60

Assets = Liabilities + Net worth

Assets = 5480.80 + 3260.60 = 8741.40

If assets increase by 10% and liabilities decrease by 10%, then net worth is:

(8741.40 + 10%) - (3260.60 - 10%) =8741.40*1.1 - 3260.60*0.9 =6681.00

PLease help this my last question

Answers

Answer:

y = 15∠abc = 68°∠bac = 78°∠acb = 34°

Step-by-step explanation:

It is helpful to realize that the exterior angle is equal to the sum of the remote interior angles:

  146° = (5y+3)° +(4y+8)°

  135 = 9y . . . . . . . . . . . . . . divide by °, subtract 11

  15 = y . . . . . . . . . divide by 9

∠abc = (4y+8)° = (4·15 +8)° = 68°

∠bac = (5y+3)° = (5·15 +3)° = 78°

∠acb = 180° -146° = 34°

50°
25°
12x - 3
Find the x

Answers

Answer:

X=-36

Step-by-step explanation:

hope this helps you out

Solve for the indicated variable.

y = mx + b for x

x=

Answers

Answer:

y-b/m = x

Step-by-step explanation:

y = mx + b

~Subtract b to both sides

y - b = mx

~Divide m to both sides

y-b/m = x

Best of Luck!

The three Miller boys were calculating the volume of their new fish tank to determine how many gallons of water the tank can hold. Each brother measured a different dimension of the tank. Their measurements were 1 yard in length, 1 foot in width, and 18 inches in height.

1. There are approximately 7.5 gallons per cubic foot. If you want to know how many gallons of water the tank can hold, what unit of measure would you use to calculate the volume of the fish tank? Explain why

2. Determine how many gallons of water the fish tank can hold. Carefully show your work and include units of measure.​

Answers

9514 1404 393

Answer:

ft33.75 gal

Step-by-step explanation:

1. The conversion factor is given in gallons per cubic foot. So, to avoid more conversion factors than necessary, it is convenient to use feet as the unit of measure.

__

2. The dimensions are ...

  1 yd × 3 ft/yd = 3 ft . . . . length

  18 in × 1 ft/(12 in) = 1.5 ft . . . . height

So, the volume is ...

  V = LWH = (3 ft)(1 ft)(1.5 f) = 4.5 ft³

Then the number of gallons is ...

  (4.5 ft³)×(7.5 gal/ft³) = 33.75 gal

Which set of ordered pairs could represent a function?
o (2, 3), (2, 2), (2, 4), (2, 9), (2,-2)
O (1,5), (2, 6), (1, 6), (4, 5), (1, 4)
O (1, 0), (2, 0), (1, 3), (4,3), (5, 7)
O (5, 1), (7,3), (9,5), (11, 7), (13, 9)

Answers

Answer:

(5,1), (7 3), (9, 5), (11, 7), (13, 9)

Step-by-step explanation:

For every input there is exactly one output.

Answer:

(5, 1), (7,3), (9,5), (11, 7), (13, 9)

Step-by-step explanation:

sorry i remove the question

Answers

It ok it still counts as a answer lol

Which set of algebra tiles represents the sentence below? Luis added four shells to his collection. 1 box contains x and 4 boxes contain minus signs. 4 boxes contain x and 1 box contains a plus sign. 1 box contains x and 4 boxes contain a plus sign. 4 boxes contain x and 1 box contains a minus sign.

Answers

Answer:

c

Step-by-step explanation:

Answer

C

Step-by-step explanation:

multiple choice geomotry 1 question

Answers

Answer:

c

Step-by-step explanation:

If the x-intercepts are (-5,0) and (3.0), then the x-coordinate of the vertex is
Then I also know the equation of the axis of symmetry is

Answers

If this is for a parabola, then the x-coordinate is -1, since it is directly in the middle of -5 and 3, with 4 spaces on each side (symmetry). The equation is just x = -1 since it just shows the equation of the vertical line which splits the parabola into two equal parts

I need help with homework

Answers

Answer:

okay

Step-by-step explanation:

lol sorry for this I just needed to answer one more question

There are 2 girls for every 4 boys in Rita’s new marching band. If there are a total of bought a total of 16 girls on the marching band, how many boys are there???? Explain

Answers

Answer:

32

Step-by-step explanation:

If there are 2 girls for every 4 boys, that's twice as many boys then there are girls, so, 16 x 2 = 32

Community Gym charges a $60 membership fee and a $55 monthly fee. Workout Gym charges a $200 membership fee and a $45 monthly fee. After how many months will the total amount of money paid to both gyms be the same? What will the amount be?​

Answers

Answer:

4 Months, and the Total amount is 280

Step-by-step explanation:

60 + 55m = ?

200 + 45m = ?

60 + 55 = 115 + 55 = 170 + 55 = 225 + 55 = 280

200 + 45 = 245 + 45 = 290 + 45 = 235 + 45 = 280

           1                  2                 3                 4

What is 256 square root??

Answers

Answer:

16

Step-by-step explanation:

[tex]\sqrt{256} \\=\sqrt{16 * 16} \\=16[/tex]

Answer: 16

Step-by-step explanation: √

256=16

at least that's the positive square root

−16

is also a square root of 256.

16²=(−16)2=256

By definition, the principal square root of a number is the positive square root. The term "the square root" is commonly used to refer to the principal (positive) root though there are usually two roots.

What would the answers be for 2. And 3.?

Answers

Answer:

H and B

Step-by-step explanation:

For number 3 its B because pie = irrational

Answer:

For number 2 the answer is J.

For number 3 the answer is B.

Step-by-step explanation:

2. f(x)=2x+10

f(-8)=2(-8)+10

f(-8)=(-16)+10

f(-8)= -6

3. Pi is an irrational number so 32 with pi will also be irrational.

The volleyball team at Huntington Middle wants to order t-shirts with their team name and logo. They
are considering purchasing the shirts from either Crazy Tees or T-shirts R Us. Crazy Tees charges fifteen
dollars per shirt, while T-shirts R Us charges $10 per shirt and a one-time fee of fifty dollars. What is
the price of one T-shirt if the total for both companies were the same amount?

Answers

When the both have 10 t-shirts, they will be the same price of 150 dollars. Hope this helps.

TELL ME IF YOU AGREE IF NOT WHAT SHOULD I CHANGE??! THX

Answers

Answer:

for my opinion, i think yo should try, i agree.

Step-by-step explanation:

Answer:

It looks right to me

Step-by-step explanation:

Lin is interested in how many of her classmates watch her favorite TV show, so she starts asking around at lunch. She gets the following responses: 4 YES and 10 NO. If she ask one more random classmate, do you think they will say "YES" or " NO"?

Answers

Answer:

They will probably say NO

Step-by-step explanation:

Add to find the total number of response.

10 + 4 = 14

Find the probability of someone saying yes or no.

4 / 14 ≈ 0.29 or 29%

10 / 14 ≈ 0.71 or 71%

As you can see, saying NO is more likely than saying YES.

Best of Luck!

Effect
Cause
If it is raining
then it is spring
A. Construct Arguments
Determine whether each effect is
always true for the given cause,
or is not necessarily true for the
given cause. For the effects that
are not necessarily true, how
could you change them to make
them always true?
If x and y are whole numbers
then their difference x -- y is a
whole number
If water is heated
then it boils.
If a triangle has a right angle
then it is a right triangle
If your favorite color is blue
then you are a good speller.

Answers

I wish I could help but u should try looking videos up on Kahn academy

A plane descends at a rate of 212 feet per minute. What will the total change in elevation be after 6 minutes?

Answers

ok thanks so i i i said he will never be there till next tuesday so if you want me back at home or not and then i will give you the answer i i and i’m will give ok thanks so i i i said he will never be there till next tuesday so if you want me back at home or not and then i will give you the answer i i and i’m will give ok thanks so i i i said he will never be there till next tuesday so if you want me back at home or not and then i will give you the answer i i and i’m will give

What is an equation in point-slope form of the line that
passes through (-3, -1) and has a slope of 2

Answers

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

[tex]y - y_1 = m(x - x_1) [/tex]

where

m is the slope

( x1 , y1) is the point

From the question the point is (-3, -1) and slope 2

The equation is

[tex]y + 1 = 2(x + 3) [/tex]

Hope this helps you

11. Graph the function. Label the vertex and axis of symmetry. State the domain
and range. Then describe where the function is increasing and decreasing. *
f(x) = 2(x - 1)(x – 3)

Answers

Answer:

x2 is the answer

Step-by-step explanation:

i found out by seeing those numbers in the numerial order.

I need help with this

Answers

Answer:

X=6

Step-by-step explanation:

Well it’s already a proportion so you cross multiply

2(x)=3(4)

2x=12

Solve for X

isolate the variable by dividing 2 on both sides

x=6

X=6

James rides the train from Center City to Lakeside. The train ride
lasts for 18 minutes. The train arrives at the Lakeside station at
9:12 A.M. What time did the train ride start?

Answers

Answer: 8:54

Step-by-step explanation:

Answer:

8:54 A.M.

Step-by-step explanation:

When you subtract 12 minutes from 9:12 A.M., you get 9 am. Then you still have to subtract 6 more minutes from 9:00 A.M. and you get 8:54 A.M.

Can someone please help me it’s due today I appreciate the help !

Answers

Answer:

k =-2

Step-by-step explanation:

Using the slope formula

( y2-y1)/(x2-x1) = m

( k- -1)/( -10 - -8) = 1/2

( k+1)/ ( -10+8) = 1/2

( k+1) /-2 = 1/2

Multiply each side by -2

( k+1) /-2 * -2 = 1/2 * -2

k+1 = -1

Subtract 1 from each side

k+1-1 = -1-1

k = -2

Answer:

K= -5 because -10 divided by -5 which is K gives u 2

brainlest if right plz help

Answers

Answer:

i think it is 10

Step-by-step explanation:

Show Your Work
Please help I’ll mark brainliest

Answers

Answer:

(c)

Step-by-step explanation:

3+2+4 = 9,  4+2= 6- 3= 3


A:180
B:30
C:170
D:25

Answers

Answer:

The answer is B. Hope this helps!

Step-by-step explanation:

105 degrees is from a b to d and a b to c is 75 and 105 - 75 =30.

Answer:

30*

Step-by-step explanation:

If ABD is 105* then it would be <ABC+<CBD=105*. We know that <ABC is 75* so we can fill that in. 75*+<CBD=105*. Then we solve.

75* + <CBD = 105*

-75*                  -75*

<CBD=30*

So that's how I got it.

The asterisks are the degree signs.

hope this helps

brainliest?

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