A quadratic equation has a
discriminant equal to 5. What
does this tell you about the
solution(s) to the equation?

Answers

Answer 1

Answer:

[tex]\boxed {\boxed {\sf 2 \ real \ solutions }}[/tex]

Step-by-step explanation:

The quadratic formula is:

[tex]{x = \frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}}[/tex]

The discriminant of a quadratic is just the expression under the square root, or [tex]b^2-4ac[/tex]. This can tell us the number of solutions a quadratic has.

If the discriminant is:

Positive = 2 real solutions Equal to Zero = 1 real double/repeated solution Negative = 0 real solutions, but 2 imaginary solutions

Our quadratic equation has a discriminant of 5, which is positive. Therefore, it has 2 real solutions.


Related Questions

x - 12 = -48 *
pls help quick

Answers

Answer:

x = -36

Step-by-step explanation:

Add 12 to both sides

x - 12 + 12 = x

(12 cancels out)

-48 + 12 = -36

x = -36

wasssssupppppppppppppp

Answers

Wassssssaaaaaaaaaaaaaaa

Answer:

Wasssupppp yallll

Let f(x) = 3x + 4 and g(x)= x2 - x + 2. Perform the function operation and then find the domain.
g(x)-f(x)
g(x) – f(x) = (Simplify your answer.)

Answers

Answer:

g(x) - f(x) = x² - 4x - 2

The domain would be all real numbers for x.  Or (-∞, ∞).  Because there are no values that you could plug in for x that would make the function undefined.

Step-by-step explanation:

g(x) - f(x) = (x² - x + 2) - (3x + 4)

= x² - x + 2 - 3x - 4

= x² - 4x - 2

Braxton has money in a savings account. The equation B = 800(1 + 0.03) can be used to calculate the amount

of money in dollars, B. Braxton has in his account after t years since opening the account.

Pam also has money in a savings account. The equation P=800(1 +0.04) can be used to calculate the

amount of money in dollars, P, Pam has in her account after t years since opening the account.

Choose from the drop down menus to correctly complete each sentence.

Braxton's initial investment Choose...

• Pam's initial investment.

The interest on Braxton's account Choose...

• the interest on Pam's account.

Answers

Answer:

Braxton's initial investment is equals to (=) Pam's initial investment.

The interest on Braxton's account is less than (< ) the interest on Pam's account.

Step-by-step explanation:

Given - Braxton has money in a savings account. The equation

            B = [tex]800(1 + 0.03)^{t}[/tex] can be used to calculate the amount of money    

           in dollars, B, Braxton has in his account after t years since opening

           the account.

           Pam also has money in a savings account. The equation

           P=[tex]800(1 + 0.04)^{t}[/tex]  can be used to calculate the  amount of money in

           dollars, P, Pam has in her account after t years since opening the

           account.

To find - Braxton's initial investment ..........Pam's initial investment.

             The interest on Braxton's account .....the interest on Pam's account.

Proof -

As given, Broxton equation is - [tex]800(1 + 0.03)^{t}[/tex]

               Pam equation is - [tex]800(1 + 0.04)^{t}[/tex]  

Now,

1.)

For initial investment , Put t = 0

⇒B = [tex]800(1 + 0.03)^{0} = 800(1) = 800[/tex]

  P =  [tex]800(1 + 0.04)^{0} = 800(1) = 800[/tex]

As for t = 0

Braxton's equation , B = Pam's equation,P

Braxton's Initial investment = Pam's initial investment.

2.)

For the interest,

As we don not have time for which the interest has to be check.

So , let the time period = 5 years

Therefore,

B = [tex]800(1 + 0.03)^{5} = 800(1.03)^{5} = 800(1.1593) = 927.42[/tex]

P =  [tex]800(1 + 0.04)^{5} = 800(1.04)^{5} = 800(1.2166) = 973.32[/tex]

Now,

Interest on Braxton's account = 927.42 - 800 = 127.42 ≈ 127

Interest on Pam's account = 973.32 - 800 = 173.32 ≈ 173

∴ we get

The interest on Braxton's account is less than the interest on Pam's account.

7/22 as a decimal rounded to nearest hundreths ​

Answers

Answer:

0.318= 0.32 hope this helps tell me if I'm wrong

Edit: 0.318. 1 is in the hundredths place so 8 would bump it up to 2 so it would be 0.32

The given fraction in decimal form as 0.32.

The given fraction is 7/22.

How to convert fraction to decimal?

The fraction bar separating the “part” and the “whole” represents division. This means that all fractions can be converted into decimals by dividing the numerator by the denominator.

Now, the given fraction can be converted to decimal as follows

7/22 = 0.3181

To the nearest hundredths is 0.3181 ≈ 0.32

Therefore, the given fraction in decimal form as 0.32.

To learn more about the fraction to decimal visit:

https://brainly.com/question/28600610.

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Volume of a cylinder the radius Is 5ft the height is 10ft

Answers

The volume of the cylinder is 785.398

Answer:

V = 785.7ft³

Step-by-step explanation:

V = π r² h

V = 22/7 (5) 10

V = 22/7 × 25 ×10

V = 22/7 × 250

V = 22 × 250 ÷ 7

V = 550 ÷ 7

V = 785.7ft³ answer

Answer: The volume of the cylinder is 785.7ft³

Lisa goes out to eat with her family and spends 42.50. she gives the waiter 15% tip .how much money does she spend in total ?

Answers

Answer:

Step-by-step explanation:

1.15×$42.50 = $48.875 ≅ $48.88

Answer:

$48.88

Step-by-step explanation:

42.50 increase 15% =

42.50 × (1 + 15%) = 42.50 × (1 + 0.15) = 48.875


The measure of Angle 1 is 35º and it is complementary to Angle 2. The
measure of Angle 2 is 5x. What is the value of x?

Answers

Answer:

x = 11

Step-by-step explanation:

35 + 5x = 90    {Complementary angles}

Subtract 35 from both sides

   5x = 90 - 35

  5x = 55            {Divide both sides by 5}

    x = 55/5

    x = 11

bu soruyu yapana 15 puan​

Answers

Translate into English

Answer:

?????????????

Step-by-step explanation:

will give brainliest if correct

Answers

Answer:

A

Step-by-step explanation:

For the function y = f(x), a reflection in the y axis is y= f(-x)

(-x)^3 = -x^3 so negate that term

(-x)^2 = x^2 so leave that as is

(-x)^1 = -x so negate that term too

Stacy is a makeup artist. She charges a travel fee of $15 and $50 per hour for her services. Write a linear equation to represent this situation.

Answers

Answer:

an addition problem

Step-by-step explanation:

lol what.. its kinda bad tho

Answers

What is bad ??!????????????!

Answer:

What?........

Step-by-step explanation:

plsssss help its easy!!!!!
(one question)

wrong answer for points=banned

Answers

Answer:

First that's a  quiz. Lol

Step-by-step explanation:

It is the 2'nd answer.

Your Welcome.

What is the zero of r(x)=8/3x−16

6

−16

16

−6

Answers

Answer:c

Step-by-step explanation:

I took the test

For the line above, what is the slope? *

Answers

Answer: The slope is 2.

Step-by-step explanation:

To get the slope, use this tip: Rise over run

Count how much it rises, which is 4, and how much it "runs' which is 2. Now put rise above run which is 4/2. This simplifies to simply 2.

Answer:

The slope is 2.

Step-by-step explanation:

The points on the line are (1, -2) which can be labeled as x1 and y1, and the other is (3,2) which can be labeled as x2 and y2. you set up the equation in the slope formula, so 2 - - 2 / 3 - 1. Since there are two negatives, the subtraction signs turn into addition signs, and you get 4/2, which simplyfied is 2. Hope this helps :)

8th grade math!!
please helppp

Answers

Noticed how it forms a supplementary angle.

A supplmentary angle is basically two angles that added up to 180 degrees.

So we have:

64 + x = 180

Then we solve for "x", so "x" = 116.

Hope that makes sense :)

The answer is 116.

180-64=116

Hope this helps! Have a good day!

Can i get the correct answer to this please escape rooms are hard
Whoever answers this first gets a brainliest.
I need the answer ASAP and how you solved it.

Answers

Step-by-step explanation:

Volume of Sphere

= 4/3πr³

= (4/3)(3.14)(60/2)³

= 113,040ft³.

The diameter of the sphere is 60 ft

Solution:-

Volume of sphere = 4/3πr³

= (4/3)(3.14)(60/2)³

= 113,040ft³

Answer:-

The volume of the given sphere is 113,040ft³

You have only $1 bills and $5 bills in your wallet. You have 33 bills worth a total of $93. How many of each type of bill do you have?

Answers

Answer:

you would have 3 1's and 10 9's  so sorry if this is wrong

In △ABC, G is the centroid and BE = 21. Find BG and GE.

Answers

Answer:

BG = 7, GE = 14

Step-by-step explanation:

The centroid is the intercession of medians.

The centroid theorem states that the centroid is 2/3 of the distance from each vertex to the midpoint of the opposite side.

BE is the median and point G is 2/3 of the distance from E:

GE = 2/3BE = 2/3(21) = 14

Then BG is:

BG = BE - GE = 21 - 14 = 7

The answer is BG = 7, GE = 14

Answer:

the answer is BG=7,GE=14

What scale factor was applied to the first rectangle to get the resulting image?

Answers

Answer:

2.5

Step-by-step explanation:

7.5/2=2.5

can someone help me please

Answers

Answer:

11. Jason needs to sell 35 bird feeders to make a profit of $135.12. 80 guests must attend the picnic to pay for the permit.

The measure of angle Y is 45°, and the measure of angle Z is 70°.
Z
W
Y
What is the measure of angle W?
25°
65°
1150
120°

Answers

Answer:

115 degrees

Step-by-step explanation:

We know that angle y is 45 degrees and angle z is 70 degrees so to find x, you do 180-45-70 to get 65 degrees.

Because W plus X has to equal 180 degrees, 180-65=115, so the answer is 115 degrees

Answer:

choice 3) W = 115 degrees

Step-by-step explanation:

all triangle interior angles add up to 180 degrees

180 = 45 + 70 + X

X = 65 degrees

Angle W is supplemental to angle X (angle W and angle X add up to 180 degrees.)

W = 180 - 65 = 115 degrees

There are 90 penguins in a zoo. There are two types - Humboldt and Emperor.
52 are female, of these 6 are Emperor penguins.
There are 5 male Emperor penguins.
Use this information to complete the frequency tree.
PLEASE ANSWER I WILL GIVE BRAINLIEST!!!

Answers

Answer:

still need it?..........

PLS HELP I RLY NEED IT

If the sin 30º = 1/2
then which statement is true? (6 points)

a. cos 150° = 0, because the cosine and sine are supplements

b. cos 60° = 0, because the cosine and sine are complements

c. cos 150° = 1, because the cosine and sine are supplements

d. cos 60° = 1/2, because the cosine and sine are complements

Answers

Because sine and cosine are complements, we will have that:

cos(60°) = 1/2.

Which statement is true?

First, because cosine and sine are complements, we know that:

cos(x) = sin(x + 90°).

cos(90° - x) = sin(x).

We will use the second relation, with x = 30° we can write:

cos(90° - 30°) = sin(30°)

cos(60°) = sin(30°)

And we know that sin(30°) = 1/2

Then we also have cos(60°) = 1/2.

So the correct option is d.

If you want to learn more about trigonometric functions:

https://brainly.com/question/8120556

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Answer:

D-  cos 60° = 1/2, because the cosine and sine are complements

Step-by-step explanation:

Got it right on test:)

I need help lol............

Answers

Answer:

y=4x-1

Step-by-step explanation:

I plugged the table into Desmos and I determined the slope and intercept from that.

the equation to find the slope is
(y2-y2)/(x2-x1)

plug in two points from the table:
(7- -5)/(2- -1) = 12/3 = 4

the slope is 4

plug in one of the points and the slope into point slope form:
y+5 = 4 (x+1)

solve to find slope intercept form:
y+5 = 4x + 4
y = 4x - 1

answer: y = 4x - 1

Find the exact value of inverse cos (square root of 3/ 2.

Answers

Answer:

that I have attached my application for you to have a couple months but I'm thinking it's all threads a small for more about an automatically ke you don't you to join our next few different to see a look great and you want them so it in for her the

Answer:

30° is the exact value of cos invers

PLEASE MARK ME AS BRAINLIEST

34.2 was rounded to one decimal place. What is the upper and lower bound?

Answers

Answer:

lower=34.15 upper=34.25

Step-by-step explanation:

HELPS ASAP PLZ
Question:
If hotdogs are sold in packages of 10 and buns are sold in packages of 8, how many packages of each would you need to buy to get an equal number of hotdogs and buns?

Answers

Answer:

you would need to get 4 packages of hotdogs and 5 packages of buns

4*10=40

5*8=40

Step-by-step explanation:

2) Find the area. *
7 points
12 cm
2 cm
4 cm
6 cm
24
O 12
36
48

Answers

Answer:

36cm

first we extend one of the half lines.

now we have 2 rectangles with sides

6cm and 4cm and 2cm and 6cm

using area of rect formula we find the area of both the rects separately and then add them

What is the annual rate of inflation (percent of inflation) of a gallon of milk costing $2.25 last year and $2.70 this year

Answers

Answer:

20%

Step-by-step explanation:

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