Find the discriminant of the equation and give the number and type of solutions of the equation 4x^2+2x-5=0

Please help fast!!

Answers

Answer 1

Answer:

The answer is 84.

Step-by-step explanation:

The given equation is

4x*2 + 2x -5 = 0

Here a= 4, b= 2, c= -5

Since Discriminant= b*2 -4ac

Putting values

Discriminant= (2)*2 - 4(4)(-5)

= 4 + 80

= 84

Since our Discriminant(84) is >0 and is not a perfect square so the roots of the given equation are unequal and irrational(real).


Related Questions

. The area of a rectangle is 2/5 of a inch. If the length is 2/3 of a inch, what is the width

Answers

Answer:

the width of the rectangle is [tex]\frac{3}{5}[/tex] inches

Step-by-step explanation:

The computation of the width is as followS:

As we know that

Area of rectangle  = Length × width

Let us assume the width be x

So

[tex]\frac{2}{5} = \frac{2}{3} \times x \\\\\frac{2}{5} = \frac{2x}{3} \\\\10x = 6\\\\x = \frac{6}{10} \\\\= \frac{3}{5}[/tex]

hence, the width of the rectangle is [tex]\frac{3}{5}[/tex] inches

What is the slope of the line that contains these points

Answers

slope= -5

hope this helped

Answer:

slope is 5 hope it helps lol lol lol lol

Express your answer as a polynomial in standard form. f(x) = -x + 3 g(x) = 2x^2 – 3x - 7 Find: f(g(x))​

Answers

Answer:

-2x² + 3x + 10

Step-by-step explanation:

-(2x² - 3x - 7) + 3

-2x² + 3x + 7 + 3

-2x² + 3x + 10

Jason was driving down a road and after 2 hours he had travelled 80 miles at this speed how many miles would it takes Jason to drive 160 miles

Answers

i’m really confused and need help in this! please help



i said that the only thing i would have is the wrong thing i said that he would not have the same name yyyyyyyy

what is 8x3 and 7x8 can you please answer thisplease

Answers

Answer:

24 and 56

Step-by-step explanation:

8*3=24

7*8=56

8 x 3 = 24
7 x 8 = 56

what is the answer to this question ?

Answers

Answer: 40

Step-by-step explanation:

5*2^3 = ?   // means comment btw, also I am on my iPad so * means times and ^ power like 2 to the 3rd power

5*2*2*2

(5*2)*(2*2)

10*4

Answer= 40

Mina says triangle A with angles

measuring 34° and 57° is similar to

triangle B with angles measuring 57°

and 89º. Is Mina correct?

Answers

Answer:

Yes, Mina is correct

Step-by-step explanation:

Let the triangles be A and B

Given

Triangle A:

[tex]Angles = 34, 57[/tex]

Triangle B:

[tex]Angles = 89, 57[/tex]

Required

Is Mina's claim correct?

First, we calculate the third angle in both triangles.

For A:

[tex]Third\ Angle = 180 - 34 - 57[/tex]

[tex]Third\ Angle = 89[/tex]

For B:

[tex]Third\ Angle = 180- 89 - 57[/tex]

[tex]Third\ Angle = 34[/tex]

For triangle A, the angles are: 34, 57 and 89

For triangle B, the angles are: 34, 57 and 89

Since both triangles have the same angles, then by the postulate of AAA (Angle-Angle-Angle), the triangles are similar.

I REALLY NEED HELP
please please help me

answer all please

Answers

9514 1404 393

Answer:

  all are functions except Relation 2

Step-by-step explanation:

If any input value (first of an ordered pair) is used more than once, the relation is not a function. Output values can be used as often as you like.

Only Relation 2 is not a function.

Find the quotient.

(6x2 - x - 40) ÷ (5 + 2x)
3x - 8
3x + 8
8 - 3x

Answers

Answer:

The final answer is the quotient.

3x−8

Step-by-step explanation:

Answer:

The final answer is the quotient.

3x−8

Step-by-step explanation:

Two numbers are listed on a number line. Which value is NOT between these two
numbers on the number line?
43/7
3314
A 620%
B. 1217
C 49
D. N56

Answers

Answer:

d and b

Step-by-step explanation:

Is 2/3 + 3/8 over 1 or less than 1

Answers

Answer: This is the answer 1.04166666667 and i think is over

Answer:

1.04

Step-by-step explanation:

In a Question like this. It dont have a decimal so therefore its over 1

Hoped it helped! :)

Quadrilateral ABCD has vertices at A(-3, 3), B(0, 4), C(3, 3),and D(0,2). What word below best describes this quadrilateral?
A) Square
B) Rectangle
C) Parallelogram
D) Rhombus

Answers

9514 1404 393

Answer:

  D)  Rhombus

Step-by-step explanation:

The figure is a parallelogram with equal-length sides, so is a rhombus.

What is the distance between point A and point B?

Answers

Answer:

[tex]\sqrt{45}[/tex]

Step-by-step explanation:

Ultimately, you want to find the hypotenuse from the distance of Point A to Point B.  From point A to the center of point B, it is nine units up and from there it is three units to the right of Point B.  Use the Pythagorean theorem to get your hypotenuse in which you should get 45 as your hypotenuse and when you divide it, it is [tex]\sqrt{45}[/tex].

solve 2x-4 / 5 = 4

so you need to find x ^^

Answers

Answer:

The answer is x=12

Step-by-step explanation:

2*12= 24-4 = 20/5=4

the answer is x=12

Please help, due tomorrow

Answers

Answer:

[tex]4x^{2} + 2x - 5[/tex]

Step-by-step explanation:

[tex]2x^{2} - 2x - 5 -(-2x^{2} - 4x)[/tex]

[tex]2x^{2} - 2x - 5 +2x^{2} + 4x[/tex]

[tex](2x^{2} +2x^{2}) (-2x + 4x) - 5[/tex]

[tex]4x^{2} + 2x - 5[/tex]

Hope this helped <3

(5x - 2)(8x - 7)
Find each product by step by step

Answers

Answer:

I can help you because  I am learning  the same time. ok

Step-by-step explanation:

1 step (5x-2) = (8x-7)

expand (8x-7) = 8x-7 so 5x-2=8x-7

add 2 to both  side 5x-2+2=8x-7+2

simplify 5x=8x-5

subtract 8x from both side 5x-8=8x-5-8

simplify -3x=5

divide both sides by -3

3x 3 =5x

simplify x=5 over 3

Select all the correct answers.
Which expressions are equal to 105?
0 (104)
103.102
105
(103)
10-10-10-10-10

Answers

Answer:

105

Step-by-step explanation:

0 (104) is equal to 0, so let's cross that out. 103 times 102 is definitely not equal to 105. The third one is 105. The fourth one is not 105. The last one is not 105 either.

Given that P = x + y . Find P when: x = 20 and y = − 24 P = ?

Answers

Answer:

P = -4

Step-by-step explanation:

Assuming that x = 20 and y = 24, you have to plug in these numbers for x and y to get to this equation P = 20 - 24.  You should get -4 when you subtract 24 from 20 giving you a negative answer.

last month 7,364 people visited game world this month 5,858 people visited game world how many total people visited game world Last month and this month

show your work ​

Answers

Answer:

13,222 people visited game world last month and this month

Step-by-step explanation:

7,364 + 5,858 = 13,222

A bag contains coins consisting of quarters and dimes. The total value of the coins is $285. How many quarters are in the bag?

A. 7
B. 11
C.26
D.-8

Answers

The answer will be B.11 because you divide 285 by 25
The answer is (B)
A simple way to find the answer would be by dividing 285/5 = 11

2. Almost everyone has played the rock-paper-scissors game at some point. Two players face each

other and, at the count of 3, make a fist (rock), an extended hand, palm side down (paper), or a

"V" with the index finger and middle fingers (scissors). The winner is determined by these rules:

rock smashes scissors, paper covers rock, and scissors cut paper. If both players choose the

same object, then the game is a tie. Suppose that Player 1 and Player 2 are both equally likely to

choose rock, paper, or scissors.

a) Give a probability model for this chance process.

b) Find the probability that Player 1 wins the game on the first throw.

Answers

Answer:

a) Let's suppose that player 1 chooses rock, and the selection of player 2 can be thought as random.

If player 2 randomly selects rock, the result of the game is a draw.

if player 2 randomly selects papers, player 1 loses.

if player 2 randomly selects scissors, player 1 wins.

Then we have 3 options with the same probability, that will be:

1/3

This is, the probability of winning is equal to the quotient between the number of outcomes that make player one win (1, in this case, scissors) and the total number of outcomes (3) = 1/3

the probability of a draw is equal to the quotient between the number of outcomes that make a draw (1, in this case, rock) and the total number of outcomes (3) = 1/3

the probability of losing is equal to the quotient between the number of outcomes that make player one lose (1, in this case, paper) and the total number of outcomes (3) = 1/3

And remember that this will be the same for any selection of the player 1.

b) As we already found, the probability of winning for any selection is 1/3 = 0.333..

solve for x round your answer to the nearest tenth

Answers

Answer: x=44.6

Step-by-step explanation: 30²= 900

                                             33²= 1089

                                             900²+1089²=1989²

                                             1089²=44.6

                                             x=44.6

how much is 4/5 of a dollar

Answers

It’s 25 25 25 25 or 20 x 4=5 or 100

What is the greatest common factor of 3x^4, 15x^3", and 21x^2??


Answers

Answer:3x^2 each coefficient is divisible by 3 and and you can take x^2 from both of them

A line's slope is 1/5 and the y-intercept is 5. What is its equation in slope-intercept form?

Answers

Answer:y=1/5x+5

Step-by-step explanation:

m=slope so plug in the slope you already have which is 1/5

b= y intercept so plug in your y intercept which is 5

!!CAN I DM SOMEONE TO HELP ME WITH MATH PROBLEMS PLEASE?!

Answers

Answer:

shii why not

Step-by-step explanation:

Answer:

suree

Step-by-step explanation:

Does anyone know how to solve this??

Answers

Answer:

(x - 3)² + (y + 1)² = 65

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

The centre C is at the midpoint of the endpoints of the diameter.

Using the midpoint formula to find C

C = ( [tex]\frac{7-1}{2}[/tex], [tex]\frac{6-8}{2}[/tex] ) = ( [tex]\frac{6}{2}[/tex], [tex]\frac{-2}{2}[/tex] ) = (3, - 1 )

The radius is the distance from the centre to either of the endpoints of the diameter.

Using the distance formula to find r

with C (3, - 1 ) and (7, 6 ) , then

r = [tex]\sqrt{(7-3)^2+(6+1)^2}[/tex]

  = [tex]\sqrt{4^2+7^2}[/tex]

  = [tex]\sqrt{16+49}[/tex]

  = [tex]\sqrt{65}[/tex]

Then equation of circle is

(x - 3)² + (y - (- 1) )² = ([tex]\sqrt{65}[/tex] )², that is

(x - 3)² + (y + 1)² = 65 ← equation of circle

True or False: The following pair of functions are inverse functions.
f(x)=-3x
g(x) = 1/3x
True
False

Answers

Answer:

False is the correct answer✔✔✔

Step-by-step explanation:

Answer:

its is false

but yeah just adding tk it

WILL GIVE BRAINLEIST
Which graph shows three points that represent equivalent ratios?

Answers

Answer: The first one and the last one

Step-by-step explanation:

Answer:

The answer is c.

Step-by-step explanation: i took the test

im 100% sure

The function can be used to determine the milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. How many milligrams (to two decimals) will be present after

Answers

Answer: 0.09 mg

Step-by-step explanation:

To find out the milligrams in the blood after 10 hours you just need to replace the 'h' in the equation to 10.

= 5e⁻⁰°⁴ˣ¹⁰

= 5e⁻⁴

= 0.09157819444

= 0.09 mg

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