What is the root of 12x=9+5x2

Answers

Answer 1

Answer:

Step-by-step explanation:

What Is The Root Of 12x=9+5x2
Answer 2

Answer:

(6 ± 3i)/5

Step-by-step explanation:

12x = 9 + 5x²

5x² - 12x + 9 = 0

Method 1

Factors that add to = b (-12) and multiply to = ac (45):  3 and -15

5x² + 3x - 15x + 9 = 0

5x(x - 3) + 3(x + 3) = 0

(x-3) and (x+3) do not match !!!!

Method 2 - Quadratic Formula

-b ± √(b² - 4ac)/2a

12 ± √((-12)² - 4(5)(9))/2(5)

12 ± √((-12)² - 4(5)(9))/2(5)

12 ± √(144 - 180)/10

12 ± √-36/10

(12 ± 6i)/10

(6 ± 3i)/5

I hope this helps!


Related Questions

A model of a car is made to a scale of 1.10. What is the ratio of the volumes of the model car to the real car? If the model car has a mass of 2.1 kg: what is the mass of the real car assuming the same metal is used?​

Answers

Answer:

1:1000

2,100 kg

Step-by-step explanation:

A linear scale of 1:10 means a volume scale of 1:1000.

The ratio of the volumes is model:real = 1:1000.

The mass is proportional to the volume.

The real car has a volume 1000 times the volume of the model, so its mass is also 1000 times the mass of the car.

mass of real car = 1000 × 2.1 kg = 2100 kg

Please help me thank you!
10 points !

Answers

Answer:

A = 120 C = 45

Step-by-step explanation:

180 - 15 = 165
(12x + 12) + (3x + 18) = 165
15x + 30 = 165
15x = 135
135 ÷ 15 = 9
x = 9

A = (12x + 12) = 108 + 12 = 120
C = (3x + 18) = 27 + 18 = 45

Given that Cos0=5/13,find a)Tan0,b)Sin0,c)Sec0,d)Co sec0,e)Cot0,​

Answers

cos θ = Adjacent/ hypotenuse

cosθ= 5/13

a²+b²= c²

a² + 5² = 13²

a² = 13² - 5²

a² = 144

a=√144

a= 12

a is the opposite = 12

b is the Adjacent = 5

c is the hypotenuse = 13

a) tan θ= opposite/Adjacent

tan θ = 12/5

b) sin θ= opposite/ hypotenuse

sinθ= 12/13

C) sec θ= hypotenuse / Adjacent

sec θ= 13/5

d) cscθ= hypotenuse /opposite

cscθ= 13/12

e) cotθ=Adjacent/ opposite

cotθ= 5/12

help me pls guys guys​

Answers

Answer:

1.TRUE

2.TRUE

3.TRUE

4.TRUE

5.TRUE

Step-by-step explanation:

THATS MY ANSWER ON MY MODULES

hope it helps as

help me guys pls pls pls​

Answers

Answer:

figure      area     add        units (?)    (?)

Step-by-step explanation:

Might need a little more information

  last one can be   square feet      square yards    square inches   square cm  square meters   etc   etc     It depends on the dimensions of the figure which isn't shown.

HOMEWORK DUE IN 5 MINUTES CORRECT ANSWER WILL RECEIVE BRAINIEST

Answers

Answer:

Answer below

Step-by-step explanation:

Slope=0.400/2.000 or 0.2

X-Intercept=15/1 or 15

Y-intercept=15/-5 or 3/-1 or -3

Which law requires credit card companies to be honest about fees and
interest charges?

Answers

Answer: The Truth pf Lending Act


Explanation: A federal law passed in 1968 to ensure that consumers are treated fairly by businesses in the lending marketplace and are informed about the true cost of credit

PLEASE HELP PLEASE HELP I WILL GIVE BRAINLIEST

Answers

Answer:

Jenna's line would be: C Line L

Step-by-step explanation:

The x coordinates and y coordinates from Jenna's table matches up with the points on Line L. Hope this helped! :)

Which is the solution set of this inequality?
-1/4r-3/5<5/8

A: r>-4 9/10

B: r<-4 9/10

C: r>4 9/10

D: r<4 9/10

Answers

Answer:

Step-by-step explanation:

The solution to the inequality will  be (B) r<-4 9/10. Don't ask me why. I just know.

Keiko sold 3 less than three-fourths of his sister’s sales. Which expression represents what Keiko sold?

Answers

The answer to your question is 3/4x-3

help please, i don’t understand this question

Answers

The answer is 26-58

at 8 the temp in the city was -8. at noon the same day the temp was 2. what was the difference in temp between 8 and noon

Answers

-8 to 0 = 8

0 to 2 = 2


total change = 8 + 2 = 10 degrees

d fewer than the quotient of 5 and 2

Answers

Answer:

[tex]\frac{5}{2} - d[/tex]

Hope This Helps! :) Please Mark Brainliest!

Find the exact value.
sin 9
4
Type + or -

Answers

Step-by-step explanation:

[tex] \sin( \frac{9\pi}{4} ) [/tex]

[tex]0.1230573409[/tex]

The function f is defined by the following rule.
f(x) = 4x+5
=
Complete the function table.

Answers

the answers are as follows:

• -15

• -7

• 5

• 13

• 21

∞You start at (10, 5). You move left 5 units. Where do you end?

Answers

(5,5) sorry if it’s wrong!
hello!

We have the following point:-

[tex]\sf{(10,5)}[/tex]

where 10 is the x-coordinate & 5 is the y-coordinate.

If we move 5 units to the left, then we subtract 5 from the x-coordinate:-

[tex]\sf{(10-5,5)}[/tex]

Hence, the point is:-

[tex]\bigstar{\boxed{\pmb{5,5}}}[/tex]

note:-

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I'll comment and/or edit my answer :)

Ann has some dimes and quarters. If she has 11 coins worth a total of $2.00, how many of each type of coin does she have?

Answers

Answer:

5.5 maybe i guess its fun

your checking account balance as ameasure of money you have in that account which type of scale nominal,ordinal?​

Answers

Answer:

Ratio

Step-by-step explanation:

1. Your checking account number as a name for your account. Nominal (renaming)

2. Your checking account balance as a measure of the amount of money you have in that account. Ratio

3. Your checking account balance as a measure of your wealth. Interval

4. The number you get from a machine (32, 33,...) as a measure of the time you arrived in line. Ordinal

5. The order in which you were eliminated in a spelling bee as a measure of your spelling ability. Interval

6. Your score on the first statistics test as a measure of your knowledge of statistics. Ratio

7. Your score on an individual intelligence test as a measure of your intelligence. Nominal

8. The distance around your forehead measured with a tape measure as a measure of your intelligence. Interval

9. A response to the statement "Abortion is a woman's right" where Strongly Disagree = 1, Disagree = 2, No Opinion = 3, Agree = 4, and Strongly Agree = 5, as a measure of attitude toward abortion. Ordinal

hope it helps:)

EU ons
Question 5 of 25
The lines graphed below are parallel. The slope of the red line is - What is
the slope of the green line?
m-
O A -
B. -3
och
O D. /

Answers

Answer:

B. -3

your question isn't clear

This figure represents a large storage container that will be built out of a new durable material. The storage company needs 8 of these containers.

How much of the new material is needed to build all 8 containers?

Enter your answer in the box.

ft²
Right pentagonal prism. The height of the prism is 8 ft. The base has two pairs of parallel sides. The sides are consecutively labeled 5 ft, 3 ft, 5 ft, 2 ft, and 7 ft. The parallel sides are those labeled 3 ft and 7 ft, and 5 ft and 2 ft.

Answers

The amount of material needed for the containers is its surface area

The amount of material needed for the 8 containers using the assumed parameters is 3080 square feet

How to determine the amount of material?

The question is incomplete, as the figure of the right pentagonal prism is not given.

So, I will provide a general explanation.

The surface area (SA) of a right pentagonal prism is:

SA = 5b(a + h)

Where:

b represents the base lengtha represents the apothemh represents the height

From the question, we have the height of the prism to be 8 ft.

Assume that:

a = 3 ft and b = 7 ft

The equation becomes

SA = 5 * 7 * (3 + 8)

Evaluate the product

SA = 385

The amount of material needed for the 8 containers would be:

Amount = 8 * 385 square feet

Amount = 3080 square feet

Hence, the amount of material needed for the 8 containers using the assumed parameters is 3080 square feet

Read more about area at:

https://brainly.com/question/24487155

Answer:

The answer is 1872

Step-by-step explanation:

Which circle is the graph of the equation (x + 4)2 + (y – 5)2 = 4?

Circle C

Circle B

Circle D

Circle A

Answers

Answer: CIRCLE C

Step-by-step explanation:

Help me in math pls ty ​

Answers

Answer:

See below ↓↓↓↓↓↓

Step-by-step explanation:

5.

12 2/3 - 5/738/3 - 5/7266/21 - 15/21251/21 or 11 20/21

6.

11 1/3 - 3/534/3 - 3/5170/15 - 9/15161/15 or 10 11/15

7.

9 1/6 - 2 3/455/6 - 11/4110/12 - 33/1277/12 or 6 5/12

8.

25 1/4 - 3/525.25 - 0.624.6524 13/25 or 613/25

9.

4 1/2 - 1 4/64 1/2 - 1 2/39/2 - 5/327/6 - 10/617/6 or 2 5/6

10.

6 1/8 - 2 2/349/8 - 8/3147/24 - 64/2483/24 or 3 11/24

Question The population of North Dakota was about 672,000 in 2010. The population is projected to be about 630,000 in 2020. Find the percent decrease of the population of North Dakota. (Round to the nearest tenth of a percent.)​

Answers

Answer: 6.25%

Step-by-step explanation:

Percent Decrease = ( ( Starting Value - Final Value ) / Starting Value ) * 100

So 672,000-630000 = 42,000

42,000 / 672,00 = 0.0625

Finally multiply by 100 soooooo 0.0625 * 100 = 6.25%

the total deposist made over a time of periode

Answers

bro what.... finish the question...


The number of jelly beans placed in jars by a class of kindergarteners is normally distributed with an unknown population
mean and standard deviation. A random sample of 20 jars is taken and results in a sample mean of 43 jelly beans and
sample standard deviation of 6 jelly beans.

Answers

Using the t-distribution, the 80% confidence interval for the mean number of jelly beans is (41.22, 44.78).

What is a t-distribution confidence interval?

The confidence interval is:

[tex]\overline{x} \pm t\frac{s}{\sqrt{n}}[/tex]

In which:

[tex]\overline{x}[/tex] is the sample mean.t is the critical value.n is the sample size.s is the standard deviation for the sample.

The critical value, using a t-distribution calculator, for a two-tailed 80% confidence interval, with 20 - 1 = 19 df, is t = 1.3277.

The other parameters are given as follows.

[tex]\overline{x} = 43, s = 6, n = 20[/tex].

Hence, the bounds of the interval are given by:

[tex]\overline{x} - t\frac{s}{\sqrt{n}} = 43 - 1.3277\frac{6}{\sqrt{20}} = 41.22[/tex]

[tex]\overline{x} - t\frac{s}{\sqrt{n}} = 43 + 1.3277\frac{6}{\sqrt{20}} = 44.78[/tex]

The 80% confidence interval for the mean number of jelly beans is (41.22, 44.78).

More can be learned about the t-distribution at https://brainly.com/question/16162795

5 divided by 2 1/7
Simplest form​

Answers

Answer: 2 1/3

Step-by-step explanation:

We first convert this to mixed number: 5/1 / 15/7

Then cross cancel and factor to get 7/3.

Lastly we convert this back to a  mixed number.

So we get 2 1/3 or 0.667 (decimal)

Determine the area of the following shapes.
a. 144 in
b. 154 in
c. 164 in

Answers

A) 144 in

is your answer. good luck

how many right angles in trapezoids

Answers

Answer:

Almost all trapezoids have two right angles, beacuse they are quadrilaterals, meaning they will have at least one or more right angles.

__________________________________________________________

Questions?

Ask me in the comments box.

Please view image below, it supports the answer. The tiny squares in blue circles are highlighted right angles.

Consider the two regression lines 3x+2y=26 and 6x+y=31,
(a) Find the mean value and correlation coefficient between x and y.
(b) If the variance of y is 4, find the S.D. of x.​

Answers

The regression lines 3x+2y=26 and 6x+y=31 are linear regressions

The mean values are 4 and 7 and the correlation coefficient between x and y is 0.25The standard deviation of x is 2/13

The mean value and the correlation

We have the equations to be:

3x+2y=26 and 6x+y=31

Make y the subject in the second equation

y = 31 - 6x

Substitute y = 31 - 6x in the first equation

3x+2[31 - 6x] = 26

Expand

3x+ 62 - 12x = 26

Collect like terms

3x - 12x = 26 - 62

Evaluate

-9x = -36

Divide by - 9

x = 4

Substitute x = 4 in y = 31 - 6x

y = 31 - 6 * 4

y = 7

This means that the mean values are 4 and 7

To determine the correlation coefficient, we make y the subject in 3x+2y=26 and x the subject in 6x+y=31.

So, we have:

y = 13 - 3x/2 and x = 31/6 - 1/6y

The above means that:

Bxy = -1/6 and Byx = -3/2

The correlation coefficient is then calculated as:

r^2 = Bxy * Byx

r = -1/6 * -3/2

r = 0.25

Hence, the correlation coefficient between x and y is 0.25

The standard deviation of x

We have:

Var(y) = 4

In (a), we have:

y = 13 - 3x/2

To solve further, we make use of:

Var(y) = Var(ax + b) = a^2Var(x)

This gives

Var(y) = Var(13 - 3x/2) = 13^2 * Var(x)

So, we have:

Var(y) = 13^2 * Var(x)

Substitute 4 for Var(y)

4 = 13^2 * Var(x)

Divide both sides by 13^2

4/13^2 = Var(x)

Express 4 as 2^2

(2/13)^2 = Var(x)

So, we have:

Var(x) = (2/13)^2

Take the square root of both sides

SD(x) = 2/13

Hence, the standard deviation of x is 2/13

Read more about regression lines at:

https://brainly.com/question/4341286

Write an equation of a parabola that opens upward, has a vertex at the origin, and a focus at (0, 2).

Answers

Answer:

Parabola opens upwards, so it's a vertical parabola. Vertex at origin (0,0) and focus at (0,2). Standard equation of this parabola is

| (X — h)^2 = 4p(Y — k) |

Focus is at (0,2), so distance between vertex and focus, which is p is 2 units. So 4p = 8 units.

So the equation of this parabola is,

(X — 0)^2 = 8(Y — 0)

X^2 = 8Y or Y = X^2/8

Step-by-step explanation:

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