Use the quadratic formula to determine the exact solutions to the equation.

2x2−5x+1=0

x=
or x=

Answers

Answer 1

Answer:

x= 2.28

or, x= 0.219

Step-by-step explanation:

2x²-5x+1 =0

a= 2, b= -5 and c= 1

x= (-b + √(b²-4ac))/2a

= (5 + √(25-8))/4

= (5 + √17)/4


Related Questions

— 7x — 4y = — 44
7x — Зу = 16

Answers

Answer:

-7x-4y+4y=-44+4y

-7x=4y-44

-7x/-7= 4y-44/-7

x=-4/7y+44/7

x=-4/7y+44/7

Step-by-step explanation:

helppp pleaseeeeee!!

Answers

Answer:

c .  

Step-by-step explanation:

Answer:

sas maybe

Step-by-step explanation:

because a-c is a side marked by two lines, and it corresponeds

with b-c. c is the same angle. c-e is marked by one line and corresponds with c-d.

   

Solve for x please :).

Answers

x= 4. To find the perimeter you add all the sides. One side is 6 so the other has to be six as well because there are 2 pairs of congruent sides in a rectangle. 20-12=8 and now you divide by two to find the value of the two sides left

What equivalent to 3:4
Please no bots

Answers

Answer: [tex]6/8, 9/12, 12/16, 15/20[/tex] and so on

Step-by-step explanation:

Answer:

There are many ratios equivalent to 3:4. For example, 6:8, 9:12, 12:48, 15:20, 18:24

Step-by-step explanation:

Your local radio station is having their yearly music player and concert ticket giveaway. For one minute, every 5th the caller will win a music player and every 7th caller will win concert tickets.

You were just the first caller to win both a music player and concert tickets!

What number of caller were you?

Answers

Answer:

you are the 35th caller.

Step-by-step explanation:

Multiples of 5: 5,10,15,20,25,30,35,40,45,50

Multiples of 7: 7,14,21,28,35,42,49,56,63,70

Since the question specified "first caller" , the answer is basically from the lowest common Multiple (the lowest number that appear in both multiples) , and in this case, only 35 is the lowest common multiple.

Pls help! Write two inequalities for the graph.
(System of inequalities)

Answers

Plot the "y=" line (make it a solid line for y≤ or y≥, and a dashed line for y< or y>)

9. A bag of M&M's contains 4 red, 1 blue, 3 yellow, and 2 brown. What is the probability
of Maggie choosing a yellow M&M, eating it, and then choosing another yellow M&M?

Answers

Answer:

1/15

Step-by-step explanation:

Given that:

Total Number of M&M's = (4 + 1 + 3 + 2) = 10

Number of yellow M&M's = 3

Probability = required outcome / Total possible outcomes

First pick (choosing without replacement)

P(choosing a yellow M&M) = 3 / 10

Second pick :

P(choosing a yellow M&M) = 2 / 9

P(choosing 2 yellow M&M) = 3/10 * 2/9 = 6/90 = 1/15

A rectangular prism has a length of 20cm, a height of 17cm, and a width of 6cm. What is its volume, in cubic cm?

Answers

Answer:

2,040cm

Step-by-step explanation:

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

Answers

Y = -2x + b
Plug in the point
1 = -2(-3) + b
1 = 6 + b, b = -5
Solution: y = -2x - 5

Terry Clayton has an open-ended lease for an SUV. The lease costs $421.38 for 48
months. He paid a $2,500 deposit, an $85 title fee, and a $235 license fee. At the end of the lease, he can buy the vehicle for its $15,644 residual value. What is the (a) total
amount of payments, and (b) total cost of the lease?

Answers

Answer:

Terry Clayton tiene un contrato de arrendamiento por tiempo indefinido para un SUV. El arrendamiento cuesta $ 421.38 por 48

meses. Pagó un depósito de $ 2,500, una tarifa de título de $ 85 y una tarifa de licencia de $ 235. Al final del arrendamiento, puede comprar el vehículo por su valor residual de $ 15,644. ¿Cuál es (a) la

cantidad total de pagos y (b) el costo total del arrendamiento?

Step-by-step explanation:

What is:
1/4 (q-12) + 1/4 (q-4)
simplified??

Answers

Answer: -b - 9

Step-by-step explanation:

First, since the a cancel eachother out we are left with (4-b) + (-6-7)

Second, you want to add the -6 and -7 to get -13, so (4-b) - 13

Finally, add the 4 to the negative 13 to get (-b - 9)

Hope this helps.

The formula to calculate the gravitational force between two objects is F_g=GM_1M_2/r^2, where M_1 and M_2 are the masses of the objects, G is the gravitational constant and r is the distance between the objects. Solve for M_1 in terms of F_g, G, M_2 and r.

Answers

Answer:

[tex]M_{1}[/tex] = [tex]\frac{F_{g}r^{2} }{GM_{2} }[/tex]

Step-by-step explanation:

From Newton's law of universal gravitation, the force of attraction between two objects of masses [tex]M_{1}[/tex] and [tex]M_{2}[/tex] is given as:

[tex]F_{g}[/tex] = [tex]\frac{GM_{1} M_{2} }{r^{2} }[/tex]

Thus, cross multiply to have;

[tex]F_{g}[/tex][tex]r^{2}[/tex] = G[tex]M_{1}[/tex][tex]M_{2}[/tex]

then divide through by G[tex]M_{2}[/tex] to have,

[tex]M_{1}[/tex] = [tex]\frac{F_{g}r^{2} }{GM_{2} }[/tex]

Therefore, [tex]M_{1}[/tex] can be expressed in terms of [tex]F_{g}[/tex], [tex]r^{2}[/tex], G, [tex]M_{2}[/tex] as [tex]\frac{F_{g}r^{2} }{GM_{2} }[/tex]

Ashley owns 40 shares of a certain stock. Yesterday the value of each share went up by 10 dollars. What was the total change in value of her shares?

Answers

Answer:

$400 change

Step-by-step explanation:

If Ashley owns 40 shares, and each share went up by $10, you can do

40x10=400 to find the change in value

(-3x² + 9.2 - 9) + (-9x² + 9x + 3)​

Answers

-12X (2) + 9x +3.2 there ya go

how many possibilities are there if you toss coin 7 times

Answers

each toss results in 2 possible outcomes, head or tail so the number of possible outcomes for 7 would be

Answer:

2^7

2x2x2x2x2x2x2 = 2^7

2^7 because each time you flip the coin there can be two outcomes (heads or tails) and you have to multiply by 2 each time (2x2x2x2x2x2x2) to account for all the different possibilities for instance you could flip heads, tails, heads, heads, tails, tails, tails or you could flip tails, tails, tails, heads, heads, tails, heads or all heads or all tails which is why it’s 2^7


Find the y-intercept of 2x - y = -6.

Answers

B is correct 12 for find the y-intercept of 2x-y=-6
I’m pretty sure it’s -6 because

To find y-intercept, you have to substitute x=0

2 * 0 - y = 6

Then you solve the equation for y

2 * 0 =

0 - y

So your answer is

Y = -6

Help, please!
Look at the question down below In the photo
will give brainliest!!!!

Answers

Answer:

√136 is Approximately 2 times of √33

Step-by-step explanation:

√136 = √4x34 = 2√34 ≈ 2 x √33

BRAINLIEST TO CORRECT ANSWER!!

Answers

120/1500=x/100, x=8

So, you make 8% commision, meaning you now have to do this:

x/1300=8/100, so x=$104

It is a because it you do the the step

Please help me solve :(((

Answers

Answer:

θ ≈ 15°

Step-by-step explanation:

Using the sine rule in the triangle

note 7.56 × 10² = 756 and 2.4 × 10³ = 2400 , then

[tex]\frac{756}{sin0}[/tex] = [tex]\frac{2400}{sin125}[/tex] ( cross- multiply )

2400 × sinθ = 756 × sin125° ( divide both sides by 2400 )

sinθ = [tex]\frac{756sin125}{2400}[/tex] , then

θ = [tex]sin^{-1}[/tex] ( [tex]\frac{756sin125}{2400}[/tex] ) ≈ 15° ( to the nearest degree )

A submarine is descending at a rate of 7 feet per second.
The two variables are:
f = the number of feet the sub descends
s = the number of seconds
The independent variable, , causes a change in
the dependent variable,

Answers

Answer:

The number of seconds, the number of feet the sub descends.

Step-by-step explanation:

Answer:

I just did it and I got it right so there is a pic for proof a pic that ma answer is right



Step-by-step explanation:

Can someone help me pls

Answers

Answer:

Where's the answer?

Step-by-step explanation:


PLEASE ANSWER THIS
imagine is above
Figure 3 shows the electronic structure of an atom.
Figure 3
Electron
Nucleus
RON
This element is in the shaded group on Figure 2.
Why is this element unreactive?

Answers

Answer:

huh looks simple....it's unreactive because it's already stable

Step-by-step explanation:

it has eight electrons in the outer most energy level making it stable so it doesn't need to loose or gain electrons

I need help for question 17 in my big ideas math homework, it says "Use the figure to find the measures of the numbered angles."

Answers

Answer:

can you show a pic tell me in the comments

Step-by-step explanation:

which best describes the solutions to the equations 5x -6 - x =2x +2

Answers

Answer:

x=4

Step-by-step explanation:

What is the magnitude of -3+4i

Answers

The Magnititude of -3 + 4i is 5.

I have a triangle with angles measuring 40, 40, and 100. Is this one a unique triangle, many triangles, or no triangle?

Answers

Answer:

Unique triangle.

Step-by-step explanation:

If you were to draw the triangle, you would've been able to see that one angle is open and that the other 2 were closed.

Sara puts $4,000 into an investment yielding 5% annual simple interest; she left the money in for five years and 6 months. How much interest does Sara get at the end of those five years and 6 months?

Answers

Answer:  [tex]\$1100[/tex]

Step-by-step explanation:

Given

Principal amount is [tex]P=\$4000[/tex]

Rate of interest [tex]R=5\%[/tex]

Time period [tex]T=5\ yr\ \text{and}\ \text{6 months}\equiv 5.5\ yr[/tex]

We know, Simple interest is

[tex]\Rightarrow S.I.=\dfrac{P\times R\times T}{100}[/tex]

Putting values

[tex]\Rightarrow S.I.=\dfrac{4000\times 5\times 5.5}{100}=\$1100[/tex]

Sara gets [tex]\$1100[/tex] after 5 years and 6 months

Find the area of four walls of a room (Assume that there are no doors or windows) if its length 12 m., breadth 10 m. and height 7.5 m. ?​

Answers

Answer:

Refer to the attached file

Hope it helps..

Have a great day : )

Answer:

Hopefully u will satisfy with my answer..!!

please help me I'm confused ​

Answers

Answer:

B

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )

Here b = 26 and h = 5 , then

A = [tex]\frac{1}{2}[/tex] × 26 × 5 = 13 × 5 = 65 ft² → B

What is f(x)=x^2-8x y-intercept?

Answers

Answer:

x(x−8y)

Step-by-step explanation:

Find the Greatest Common Factor (GCF).

GCF = xx

Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)

than your answer is x(x-8y)

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