ANSWER ASAP

What are the solutions of the quadratic equation 2x2 - 4x = 3?

ANSWER ASAPWhat Are The Solutions Of The Quadratic Equation 2x2 - 4x = 3?

Answers

Answer 1

Answer:

option c

Step-by-step explanation:

2x² - 4x = 3

2x² - 4x - 3 = 0

a = 2, b = - 4, c = -3

      [tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \\\\x = \frac{4 \pm \sqrt{16 + 24 }}{4} \\\\x = \frac{4 \pm \sqrt{40}}{4} \\\\x = \frac{4 \pm \sqrt{4 \times 10} }{4} \\\\x = \frac{4 \pm 2\sqrt{10} }{4} \\\\x = 1 \pm \frac{\sqrt{10}}{2}[/tex]


Related Questions

Someone pls help me ill give out brainliest pls don’t answer if you don’t know

Answers

Answer:

h

Step-by-step explanation:

square root of 260 is 16.1 therefore h is the closest

Answer:

The answer is H. The point H is the closest.

The square root of 260 is about 16.1

how do u find this plssss tell me how?

Answers

Answer:

The sin of 20 degrees is 0.34202, the same as sin of 20 degrees in radians. To obtain 20 degrees in radian multiply 20° by / 180° = 1/9 . Sin 20degrees = sin (1/9 × .

Step-by-step explanation:

Your welcome! :)

A class' test scores are normally distributed with a mean of 48 points and a standard 
deviation of 3 points. What percentage of test scores are are between 47 and 52 
points? Round to the nearest hundredth of a percent.

Answers

Answer:

53.94%

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = 48 points

σ is the population standard deviation = 3 points

For x = 47 points

z = 47 - 48/3

= -0.33333

Probability value from Z-Table:

P(x = 47) = 0.36944

For x = 52 points

z = 52 - 48/3

= 1.33333

Probability value from Z-Table:

P(x = 52) = 0.90879

Hence, the probability of test scores that between 47 and 52 points is calculated as:

P(x = 52) - P(x = 47)

= 0.90879 - 0.36944

= 0.53935

Therefore, the percentage of test scores that are between 47 and 52

points is given as:

0.53935 × 100

= 53.935%

Approximately to the nearest hundredth of a percent ≈ 53.94%

Can someone please professionally explain the math equation. (Not just answer the question)

12b + 12 ≥ 60
SOLVE the inequality.
GRAPH the solution.

Make sure to solve and graph the equation please.

I will mark as brainliest!





Answers

Answer:

b  ≥ 4

Step-by-step explanation:

12b + 12 ≥ 60

Subtract 12 from each side

12b + 12-12 ≥ 60-12

12b  ≥ 48

Divide each side by 12

12b/ 12 ≥ 48/12

b  ≥ 4

Close circle at 4  line to the right

Answer:

Step-by-step explanation:

12b + 12 ≥ 60

1) add -12 at both members

12b + 12-12 ≥ 60 -12

12b ≥ 48

2) divide both members by 12

12/12 b ≥ 48/12

b ≥ 4

for graph the solutions we have to draw two lines

the first one is an horizontal line that has as equation the right part of the inequality

y = 60

the second one is a line the that passes from the origin and interecpts the first line in (4;60). 4 is the the first number that can be a possible value of the inequality

Equation a line that passes for two points  A (0,0) , B (4,60)

(y-y1)/(y2-y1) = (x-x1)/(x2-x1)

(y - 60)/ (0 -60) = (x - 4) / (0-4)

(-y+60)/60 (-x+4)/4

-y + 60 = -15x + 60

y = 15x

the solutions of the inequality are all the points between the two lines with x≥4 and y≥60

Parallelogram W X Y Z is shown. Diagonals are drawn from point W to point Y and from point Z to point X and intersect at point C. The length of W C is (x + 4) feet and the length of C Y is (2 x minus 7) feet.
In parallelogram WXYZ, what is CY?

11 ft
15 ft
21 ft
23 ft

Answers

Answer:

b on edge 2021

Step-by-step explanation:

From the calculations, the length of CY in the parallelogram is 15 feet.

What is a diagonal?

A diagonal is a line that runs from one end to another in a quadrilateral. We know that in such quadrilaterals as the parallelogram, the diagonals bisect each other.

Hence;

CY =WC

And

2x - 7 = x + 4

collecting like terms;

2x - x =  4 + 7

x = 11

Thus

CY = 2x - 7

= 2*11 - 7

= 22- 7

= 15

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Which set of ordered pairs does not represent a function? O {(4, -6), (-5,5),(-6,0), (7,0)} O {(0, -4), (9,6), (2,8), (8,8)} O {(8,-6), (9,-8), (2,4), (3, -6)} o {(-5,2), (3,-9),(-1,8), (-5,9)}​

Answers

Function is a set of ordered pairs that do not have same domain or x-value. That means in a set of ordered pairs, the domain cannot have same value.

The only relation that isn't function here is the last choice because in a set of ordered pairs, there are two -5's which is repetitive. Other choices do not have same x-values in one set except for the last choice.

Answer

{(-5,2),(3,-9),(-1,8),(-5,9)}

Hope this helps and let me know if you have any doubts!

Find the distance between (1, -5) and (-6, 2).

**If necessary, round to the nearest tenth**



98 units

34 units

9.9 units

5.8 units

Answers

Answer:

d = 9.9 units

Step-by-step explanation:

Picture a right triangle with one acute vertex at (1, -5) and the other at (-6, 2).  Going from one to the other, we see a change in x (run) of 7 and a change in y of 7.  Applying the Pythagorean Theorem, we find the distance between the two points as follows:

d = √(7² + 7²) = 7√2, or approximately 9.9 units.

please answer this its due tomrrow
please do what the questions says. DO ALL OF THE QUESTIONS. DONT SAY YOU SHOULD OD ONE BECAUSE I DONT KNOW ANY!!!!!

Answers

Answer:

Oki Doki, read below this will be long.

Step-by-step explanation:

So, lets start with mr moy.

First off, we need to figure out the total hours that mr moy worked.

Throuhgout the 7 days of the week, he worked 5 days. These were his hours:

8, 8, 8, 8, 9

Adding these together, you get a total of 41 hours.

Next we have total wage.

To find this, multiply the total hours by the hourly income. We know the hourly income is 12.5, and the total hours is 41:

12.5*41=512.5

So 512.5 is the total wage.

Lets do this for the next four people, I am just going to speed it up a bit:

Ms wong - hours - 8+8+7+9+9 =41. Hourly income - 9.5. Total income: 9.5*41:

389.5 is total income

41 is total hours

Maria - hours - 5+5+6+8+9=33. Hourly income - 7.5. Total income: 7.5*33:

247.5 total income

33 total hours

Tom - 4+4+4+4+4+8+8=36. Hourly income - 7.5. Total income: 7.5*36:

270 total income

36 total hours

Jacob - 5+5+5+7+7 =29. Hourly income - 7.5. Total income: 7.5*29:

217.5 total income

29 total hours

OK, now for the total sums:

Total hourly wages - 7.5+7.5+7.5+12.5+9.5=44.5

Total of the total hours - 41+41+33+36+29=180 hours

Total of total wages - 217.5+512.5+389.5+270+247.5=1637

Ok, thats it for the first page.

On the next pages, I was slightly confused. But Ill try my best.

A - for each employ, calculate total hours and wages. We already did this before.

B - What is the total amount that is paid out in wages in a week. We already did this before(1637)

C - which day is the busiest day of the week - Saturday. The slowest? Monday

So we know the slowest day has to be monday, since the total employment hours is 8+8+4=20. WHich is lower than the rest.

We also know the busiest day has to be saturday, since the total employment hours is 9+9+8+5=31. Which is higher than the rest.

Now to the the third page.

What is the average employe wage?

Lets add up all the wages, and divide by the amount of wages:

7.5+7.5+7.5+9.5+12.5=44.5

44.5/5

=

8.9

This is the average wage.

I dont totally understand part b or c of this answer.

I cannot draw or make a graph and table right now, so I cannot finish your answers.

I hope these help though!

I am timed. Please answer this.

Answers

Answer:

9

Step-by-step explanation:

because volume of a prism is area × length

so area of triangle is 4*4/2=8 so 72÷8=9.

hope this helps:)

Find the measure of angle 2.

60°
90°
120°
30°

Answers

Answer:

60

Step-by-step explanation:

answer is in photo above

It should be 60 angle

PLSSS HELP ME I DONT HAVE MUCH TIME

Answers

Answer:

- 12 and - 187

Step-by-step explanation:

To evaluate f(- 7) substitute x = - 7 into f(x)

f(- 7) = 2(- 7) + 2 = - 14 + 2 = - 12

Similarly for g(- 4)

g(- 4) = 3(- 4)³ + 5 = 3(- 64) + 5 = - 192 + 5 = - 187

Simplify the expression:
r -3 -r

Answers

Answer:

[tex]-3[/tex]

Step-by-step explanation:

Combine the opposite terms in  r  −  3  −  r .

A and B are independent events. P(A)=0.80 and P(B)=0.10. what is P(A and B)?
a.0.90
b.0.008
c.0.08
d. 0

Answers

Yes it would be b I think

The value of P(A and B) = 0.08

What is probability?

Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e., how likely they are going to happen, using it.

Given that, A and B are independent events. P(A)=0.80 and P(B)=0.1

Since the events are independent

so, the formula used to find P(A and B) is

P(A and B) = P(A) x P(B)

P(A)= 0.80

P(B) = 0.10

Finding P(A and B)

P(A and B) = P(A) * P(B)

P(A and B) =0.80 x 0.10

P(A and B) = 0.08

So, Option c is correct.

Learn more about probability, click;

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Question 1
Given the functions f(x) = 2x + 1 and g(x) = 5x +4, find m(x) = f(x) - g(x)?
A
m(x) = 3x + 3
B
m(x) = -3x + 5
С
m(x) = -3x - 3
D
m(x) = 7x + 5

Answers

Given :

⊕   f(x) = 2x + 1

⊕   g(x) = 5x + 4

⊕   m(x) = f(x) - g(x)

⇒   m(x) = (2x + 1) - (5x + 4)

⇒   m(x) = 2x + 1 - 5x - 4

⇒   m(x) = -3x - 3

Answer : C

9:37 pm is how
many minutes
after 9.08 pm?

Answers

Answer:

29 is the answer

Step-by-step explanation:

the answer is 29

Answer:

the anwser is gonna be 29 blood

Find the simplified product: 2 square root of 5x^3(-3 square root of 10x^2)

Answers

Answer:

Step-by-step explanation:

BRAINIEST AND 15 POINTS HELP FAST!!!

In the square below, the two semi-circles are congruent. Find the area of the
shaded region. If necessary, round your answer to two decimal places.

Answers

Answer:

3.44.

Step-by-step explanation:

We can see that in this square, the radii of the semicircles are 2. Using that, we can calculate that the area of each one is 6.58. Both combined is 12.56. Now, the original area of the circle was 16. 16 minus 12.56 is equal to 3.44, so the area of the shaded region is 3.44.

Answer:

3.44

Step-by-step explanation:

enter it just like that in ape x

Write a compound inequality to represent all of the numbers between -4 and 6. Write your answer using proper set notation.

Answers

Answer:

Step-by-step explanation:

+56

What is the value of x in the equation 2(5x + 4) = 17?
A 5/2
B 2/5
C 9/10
D 17/18

Answers

Answer:

[tex]\frac{9}{10}[/tex]

Step-by-step explanation:

[tex]2(5x+4)=17,\\10x+8=17,\\10x=9,\\x=\frac{9}{10}[/tex]

Analysis:

2(5x+4)=17

Distribute

10x+8=17,

Subtract 8 from both sides to isolate x

10x=9

Divide both sides by 10 to isolate x

x=9/10 (ans)

Answer:

x = 9/10

Step-by-step explanation:

2(5x + 4) = 17

Distribute

10x+8 =17

Subtract 8 from each side

10x +8-8 = 17-8

10x = 9

Divide by 10

10x/10 = 9/10

x = 9/10

I need to know how to solve this anyone?

Answers

I can't make out what the radius of the sphere is, but the equation you're looking for is:

[tex]V=\frac{4}{3}\pi r^3[/tex]

For example:

If the radius of a sphere is 5 m, it's volume would be,

[tex]V=\frac{4}{3}\pi (5)^3[/tex]

[tex]V=\frac{4}{3} (3.14)(5)^3[/tex]

[tex]V=\frac{4}{3}(3.14)(125)[/tex]

[tex]V=523.6 m^3[/tex]

The probability that it will snow tomorrow is 15%. What are the odds in favour of it snowing tomorrow

Answers

Answer:

The probabilities of all possible outcomes must sum to 1, since something has to happen. So

Psnow=13⟹Pno snow=1−13=23.Psnow=13⟹Pno snow=1−13=23.

Twenty-two percent of the large pieces of mail that Rachel received this week were magazines and the rest were catalogs. Of the catalogs, 36 percent were for clothing.

To the nearest whole percent, what is the probability that a randomly chosen large piece of Rachel’s mail was a clothing catalog?

Answers

Answer:

28%

Step-by-step explanation:

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.

Percent of catalogues received = 100% - percent of magazines received

100 - 22 = 78%

Percent of clothing catalogues = 0.78 x 36 = 28%

A car was bought for D750,000 and was sold for D775,000 calculate the percentage profit ​

Answers

10% hope this helped

What is the slope of the line? Hint: Note the scales for the x and y axis.
What is the y - intercept of the line?
What is the equation of the line? y = x +
Use the equation to predict the number of visits per week to a coffee shop that is 3 blocks away.

Answers

Answer:

y = (-1 visit/block)x + 9 visits

6 visits

Step-by-step explanation:

The y-intercept is 9 (meaning 9 visits per week).

Note that (1, 8) is a point on the line.

To find the equation of this line, start with the slope-intercept form y = mx + b.  We know that when x = 1, y = 8 and that the y-intercept, b, is 9.  Therefore:

8 = m(1) + 9.

Solve this by subtracting 9 from both sides.  We get:

-1 = m

The slope is m = -1 visits/block

and the desired equation is y = (-1 visit/block)x + 9 visits

If a particular coffee shop is 3 blocks away, we predict that the number of visits per week made to this shop is y = -1(3) + 9, or 6 visits

Round the answer to the nearest hundredth: 3.21 + 3.62 ÷ 2.43

PLS HELP WILL GIVE MOST POINTS

Answers

Answer:

4.7

Step-by-step explanation:

3.21 + 3.62 ÷ 2.43

[tex]3\frac{21}{100}+1\frac{119}{243}[/tex]

[tex]4\frac{ 17003}{24300}[/tex]

[tex]4\frac{ 17003}{24300}=4.6997119341564[/tex]

4.6997119341564 rounds to

4.70

Answer is 4.70

What are Arithmetic operations?

Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.

3.21 + 3.62 ÷ 2.43

Convert decimal into fraction,

[tex]\dfrac{321}{100} + \dfrac{362}{100}\div\dfrac{242}{100}[/tex]

[tex]\dfrac{321}{100} + \dfrac{362}{242}[/tex]

[tex]\dfrac{(321)(242)+(362)(100)}{(100)(242)}[/tex]

[tex]\dfrac{77682+36200}{24200}[/tex]

[tex]\dfrac{113882}{24200}[/tex]

[tex]4.7[/tex]0

Learn more about Arithmetic operations here:

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A soccer field is 110 yards long and 80 yards wide. What is the longest pass that one player can make to another player on a soccer field?

Answers

Answer and Step-by-step explanation:

To find the answer, we need to first think of what length in the rectangle can make the longest path, then use the Pythagorean Theorem.

The diagonal in a rectangle (going from one corner to another) is the longest distance.

If we were to split that rectangle by its diagonal, we would get a triangle. By the Pythagorean Theorem, we can find the length of that diagonal (the hypotenuse of the triangle).

[tex]A^2 + B^2 = C^2\\\\110^2+80^2 = C^2\\\\12100 + 6400 = C^2\\\\18500 = C^2\\\\10\sqrt{185} = C = 136.0147 yards[/tex] <- This is the answer (the decimal version or this ^ version).

#teamtrees #PAW (Plant And Water)

Please help me it's urgent!

Answers

Answer:

1st one may be the answer to your question 39% sure

To rationalize the denominator of
[tex]5 - \sqrt{7} \div 9 - \sqrt{14} [/tex]
, you should multiply the expression by which fraction?
Answer choices:
[tex]5 + \sqrt{7} \div 9 - \sqrt{14} [/tex]
[tex]9 - \sqrt{14} \div 9 - \sqrt{14} [/tex]
[tex]9 + \sqrt{14} \div 9 + \sqrt{14} [/tex]
[tex]\sqrt{14} \div \sqrt{14} [/tex]

Answers

Answer:

option 3

Step-by-step explanation:

[tex]\frac{5- \sqrt{7} }{9-\sqrt{14} } = \frac{5- \sqrt{7} }{9-\sqrt{14} } \times \frac{9 + \sqrt{14} }{9 +\sqrt{14} }[/tex]

       

To rationalize the denominator choose the denominator and change the sign of the operation.

The dolphin is 20 feet below the serface of the ocean.

Answers

Answer: we wont be able to answer if there is no fill out box

Step-by-step explanation:

Answer:

Can you complete the sentence?

Evaluate the following expression at x = -4
-5x-1

Answers

all u have to do is 20-1=19
Answer: 19

Substitute X in the expression :
-5(-4) - 1
-5 • -4 = 20
20 - 1 = 19
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