What are the roots of the quadratic equation below?
2x2 - 5x-1 = 0

Answers

Answer 1
Decimal form would be 2.7 and -0.2... exact form is 5 + square root 33 over 4

Related Questions

can someone help me on this

Answers

Answer:

[tex] \frac{3}{4} = \frac{9}{12} [/tex]

[tex] \frac{1}{3} = \frac{2}{6} [/tex]

[tex] \frac{2}{4} = \frac{4}{8} [/tex]

Step-by-step explanation:

To generate equivalent fractions, you can either multiply the numerator and denominator by the same number or divide the numerator and denominator by a number provided the numerator and denominator remains whole number.

Let's solve the given problem:

Problem 1:

[tex] \frac{3}{4} = \frac{x}{12} [/tex]

To find the numerator that will make the fractions equivalent, the numerator would be multiplied by the same number that was used to multiply the denominator of the first fraction (4), from which the denominator of the second fraction (12) was gotten.

Here, the denominator of the first fraction, 4, was multiplied by 3 to get the denominator of the second fraction = 12.

Therefore, the numerator of the second fraction would be gotten by multiplying the numerator of the first fraction, 3 by 3 = 9.

Thus:

[tex] \frac{3}{4} = \frac{3*3}{4*3} [/tex]

[tex] \frac{3}{4} = \frac{9}{12} [/tex]

Both fractions are now equivalent because they now have the same value. 3÷4 will give you the same value as 9÷12.

Problem 2:

[tex] \frac{1}{3} = \frac{2}{x} [/tex]

The numerator, 1, was multiplied by 2 to get 2.

Therefore:

[tex] \frac{1}{3} = \frac{1*2}{3*2} [/tex]

[tex] \frac{1}{3} = \frac{2}{6} [/tex]

Problem 3:

[tex] \frac{2}{4} = \frac{x}{y} [/tex]

We can either divide the denominator and numerator by the same number which should remain a whole number, or multiply the denominator and numerator by the same number.

Let's multiply by 2 to get am equivalent fraction.

[tex] \frac{2}{4} = \frac{2*2}{4*2} [/tex]

[tex] \frac{2}{4} = \frac{4}{8} [/tex]

Which statement is true about the equations -3x + 4y = 12 and %x-Ay=17
O The system of the equations has exactly one solution at (-8, 3).
The system of the equations has exactly one solution at (-4, 3).
The system of the equations has no solution, the two lines are parallel.
O The system of the equations has an infinite number of solutions represented by either equation.

Answers

Answer:

No solution, the lines are parallel.

Step-by-step explanation:

Any line can be represented by the equation

y = mx + b

where m is the slope and b is the y intercept.

-3x + 4y = 12

4y = 3x + 12

y = 3/4 x + 3

AND

1/4 x - 1/3 y = 1

- 1/3 y = - 1/4 x + 1

-4y = -3x + 12

4y = 3x - 12

y = 3/4 x - 3

If you get both equations in this form it is evident that the slopes m are the same (parallel) but the y intercept's b are different (not the same line). Therefore no solution.

Jasper borrowed $985 for a new TV and game system. He will make 6 payments of $190 to repay the loan. How much will he pay in interest?

Answers

Answer:

$155

Step-by-step explanation:

If the TV costs $985 and Jasper pays 6 * $190 = 1190 then Jasper pays $1140 - $985 = $155 in interest.

Answer:

155

Step-by-step explanation:

190

×6=1140-985=155

Show all 4 steps of the following:
x - 3/5= 1/6

Answers

Answer: x=23/30

Step-by-step explanation: Hope this help :D

The diagram below shows a side view of a set of stairs. What is the area shown?


No links, docs, files, drives etc
I will mark the correct answer brainlyest
You earn many points​

Answers

Answer:

468

Step-by-step explanation:

Answer:

468

Step-by-step explanation:

First, we want to break this up into separate pieces, there will be 3 rectangles and 1 square.

each rectangle has a height of 6 and a width of 24. so the area of each rectangle would be 6*24 or 144, then we multiply that by 3 because there are 3 rectangles, when we multiply 144*3 we will get 432.

Now we must solve for the area of the square, on each side, it is 6 cm so we multiply 6*6 so we get 36, that's all we need to do for that now.

to get our final answer we add both answers together so, 432+36 then our final answer is 468 cm


A bag contains 4 red balls and 6 green balls. You plan to select 3 balls at random. Determine the probability of selecting 3 green balls.

Answers

Total number of balls = 10
Red: 4/10chance of being selected
Green: 6/10 chance of being selected
Basically, there is a way higher chance of selecting 3 green balls and an even HIGHER chance of selecting 6!
Add the total number of balls and then see how many balls you are pulling and put it into a fraction and then simplify. So it would be 3/10

the difference of x and y is the same as 3 times the sum of x and 2

Answers

Answer:

x - y = 3(x + 2)

x - y = 3x + 6 is the simplified answer and is also correct

Step-by-step explanation:

The difference of x and y is the same as 3 times the sum of x and 2

x - y = 3(x + 2)

x - y = 3x + 6

Complete the dilation centered at point G with a scale factor of 2.

Answers

Answer:

G=(-4,5)

G=(2*-4,2*5)

G=(-8,10)

Step-by-step explanation:

Find the surface area of the regular pyramid

Answers

Answer:

26.8

Step-by-step explanation

52x33 please help lol

Answers

Answer:

1716.

Step-by-step explanation:

52 x 33 = 1716

Write the equation of a linear function that has a slope of ‒3 and a y-intercept of ‒2.

Answers

Answer:

y=-3x-2

Step-by-step explanation:

Alexa and Savannah are both driving along the same highway in two different cars to
a stadium in a distant city. At noon, Alexa is 600 miles away from the stadium and
Savannah is 350 miles away from the stadium. Alexa is driving along the highway at a
speed of 50 miles per hour and Savannah is driving at speed of 25 miles per hour. Let
A represent Alexa's distance, in miles away from the stadium t hours after noon. Let
S represent Savannah's distance, in miles, away from the stadium t hours after noon.
Graph each function and determine how far both Alexa and Savannah are from the
stadium at the moment they are an equal distance from the stadium.

Answers

A=600-50t
S=350-25t

600-50t = 350-25t
600=350+25t
250=25t
t=10 hrs when they are the same distance.

At 10 hrs, they are 100 miles away from the stadium

VERY URGENT PLS LOOK AT PICTURE

Answers

Answer:

Number of year = 25 year and 7 month (Approx.)

Step-by-step explanation:

Given:

Amount deposit = $200,000

Future amount = $1,000,000

Rate of interest = 6.5%

Find:

Number of year

Computation:

Using compound amount formula;

A = P[1+r]ⁿ

1,000,000 = 200,000[1+6.5%]ⁿ

1,000,000 / 200,000 = [1+6.5%]ⁿ

5 = [1+0.065]ⁿ

n = 25.557

Number of year = 25.557

Number of year = 25 year and 7 month (Approx.)

What is the mean 4,6,8,20,12

Answers

Answer:

the mean is 10

Step-by-step explanation:

4+6+8+20+12=50

50÷5=10

so the mean is 10

Which equation represents a line that is parallel to the line y = - 4x +5?
(1) y = - 4x + 3
(2) y=1/4x+3
(3) y=-1/4x+5
(4) y = 4x +5

Answers

y= -4x+3

slope is still the same so it would be parallel to that line. Only the y-intercept is different so it would just pass through a different point

option 1 is the answer.

Find the surface area of the rectangular prism.
4 yd
(2 yd
1 yd

Answers

Answer:

4 x 2 x 1 = 28

Step-by-step explanation:

12

i hope this helped sorry if it's wrong but i wish you luck (i am not good with math)

4. Triangle Relationships- Interior and Exterior Angles
Find the measure of angle 1 and angle 2. Be sure to show all work related to each answer.
S
a. m21
42°
1/2
30°
M
b. M22
A

Answers

Answer:

Value of ∠1 = 102°

Value of ∠1 = 72°

Step-by-step explanation:

Given:

∠ S = 42°

∠ A = 30°

Find:

Value of ∠1

Value of ∠2

Computation:

Using angle sum property;

Sum of all interior angle of a triangle = 180°

∠ S + ∠ A + ∠ 1 = 180

42 + 30  + ∠ 1 = 180

72 + ∠ 1 = 180

∠ 1 = 180 - 72

∠ 1 = 102

Value of ∠1 = 102°

∠ 1 and ∠ 2 makes a straight line

So,

∠ 1 + ∠ 2 = 180  

102 + ∠ 2 = 180  

∠ 2 = 180 - 102

∠ 2 = 72

Value of ∠1 = 72°

HELPPPPPPPPPP FAST PLSSSSSSSSSSSSSSSSSSSSS

Answers

19° i think can I have brainliest

HELP ME PLEASEEEEEEEEEEEEEEEEEEE

Answers

Answer:

heyy matee...

see

Vertices (V) = 8

Faces (F) = 6

Edges (E) => F + V - E = 2 (EULER'S FORMULA)

so 6 + 8 - 2 = E => E = 12

now just look at options

and however its a common thing that if Vertices are 8 and Faces are 6 and Edges are 12 then it is cube or cuboid

and another name of cuboid is rectangular prism ;)

hence answer is option c - rectangular prism

brainliest possible ?

Find the value of H if H = I^2 R^t÷4.2,R =8.3,I=2.4 and t=37

Answers

Answer:

[tex]H = 6492.97[/tex]

Step-by-step explanation:

Given

[tex]H = \frac{I^2Rt}{4.2}[/tex]

[tex]R =8.3;\ I=2.4;\ t=37[/tex]

Required

Find H

We have:

[tex]H = \frac{I^2Rt}{4.2}[/tex]

[tex]H = \frac{37^2 * 8.3 * 2.4}{4.2}[/tex]

Solve the exponents

[tex]H = \frac{1369 * 8.3 * 2.4}{4.2}[/tex]

[tex]H = \frac{27270.48}{4.2}[/tex]

[tex]H = 6492.97[/tex]

Enter "y" or "n" to tell which value of x that make each equation or inequality true.

Answers

Answer:

First row (2x + 5 = 9) is N Y N

Second row (2x + 5 < 9) is Y N Y

Third Row (2x+ 5 _< 9) is N Y Y

i need help please
...... no linksssssssssss​

Answers

Answer:

What do you want us to find???

Step-by-step explanation:

The current altitude of the plane is 15400 feet above the ground and the plane's horizontal distance to the airport is 200000 miles away. What angle of depression must the pilot make on his descent in order to safely land on the runway>

Answers

Answer:

0.441°

Step-by-step explanation:

tan = 1540/200000

tan = 0.0077

tan-1(0.0077) = 0.441

angle of depression is 0.0441°

Which is a shrink of an exponential growth function?

f(x) = One-third(3)x
f(x) = 3(3)x
f(x) = One-third (one-third) Superscript x
f(x) = 3 (one-third) Superscript x

Answers

Answer:

3 zero

Step-by-step explanation:

Answer:

The correct answer is A

Step-by-step explanation:

Hope This Helps

What will happen to a cup of water if it is left in the sun for an extended amount of time? A. It will increase in volume B. It will decrease in volume C. It will stay the same volume

Answers

Answer:

c

Step-by-step explanation:

correct me if I'm wrong

Answer:

B-It will decrease in volume

Step-by-step explanation:

If I am not mistaken, the water, if left in the sun, will evaporate when heated, so the volume will decrease.

Find the 10th term of the geometric sequence show below
–8x6, -40x8, –200x10,
•••

Help

Answers

Answer:

-15625000x^24

Step-by-step explanation:

David measures a side of a piece of wood. The length is 8 feet and the width is one-half of the
length. What is the area, in square feet, of the piece of wood?

Formula:
Area = Length x Width

Answers

Answer:

32

Step-by-step explanation:

8÷2=4 8(length)x4(width)=32(area)

Which of the fractions shown has the greatest value?

24

47

13

49

Answers

Answer:

i’m pretty sure it should be 49..?
I think is 49 since is the bigger number lol

Cube X has Edge 1 in. tube why has an edge 4in longer than Cube X. which of the following describes the relationship between the cubes?

a. the volume of cube why is 125 times the volume of cube X
b. the volume of cube why is 25 times the volume of Cube X
c. the volume of cube x is 1/4 the volume of Cube Y
d. the volume of cube x is 1/5 the volume of Cube Y

Answers

9514 1404 393

Answer:

  a. the volume of cube y is 125 times the volume of cube x

Step-by-step explanation:

The volume of cube x is ...

  V = s³ = (1 in)³ = 1 in³

The volume of cube y is ...

  V = (1 in + 4 in)³ = (5 in)³ = 125 in³

The volume of cube y is 125 times the volume of cube x.

HElP I will give brainlist PLSSSS
Nicole and Anne work as sales people for different car dealerships. Nicole earns a monthly salary of $3,500 plus a 6% commission on her sales, x. Anne earns a monthly salary of $4,000 plus a 4% commission on her sales, x. the equations that represent the total monthly earnings, y, based on the amount of sales, x, are shown below.

Nicole y=3,500 + 0.06x
Anne y=4,000 + 0.04x
When the equations are graphed, the lines intersect at the point (25,000, 5,000). What does this point mean in relationship to the scenario above?


Both sales persons will earn a monthly salary of $5,000 for selling 25,000 vehicles.
Both sales persons will earn a monthly salary of $5,000 for selling 25,000 vehicles.

Both sales persons will earn a monthly salary of $25,000 for $5,000 in sales.
Both sales persons will earn a monthly salary of $25,000 for $5,000 in sales.

Both sales persons will earn a monthly salary of $25,000 for selling 5,000 vehicles.
Both sales persons will earn a monthly salary of $25,000 for selling 5,000 vehicles.

Both sales persons will earn a monthly salary of $5,000 for $25,000 in sales.

Answers

9514 1404 393

Answer:

  (d)  Both sales persons will earn a monthly salary of $5,000 for $25,000 in sales

Step-by-step explanation:

The variable definitions are ...

  x = amount of sales

  y = monthly earnings

Then the point (x, y) = (25000, 5000) means earnings are $5000 on sales of $25,000.

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