the sum of two numbers is 18.two times the first number subtracted by the second number is equal to 15.find the two numbers

Answers

Answer 1
The first number is 11, the second is 7.

Related Questions

BRAINLIEST!!! HELP DUE IN 27MINUTES

Lim 3x³ + 2x² + x + 1. x→0​

Answers

Answer:

3mx3Li+2x2+2x→0

Step-by-step explanation:

[tex]\lim_{x \to0} 3x^3 +2x^2+x+1=3(0)^3+2(0)^2+0+1= 1[/tex]

Hope that helps!

Definition of limit: Limits describe how a function behaves near a point, instead of at that point

Due to symmetry, the probability that the standard normal random variable Z is less than 0 is equal to ______. Multiple choice question. 0

Answers

Answer:

.5

Step-by-step explanation:

The probability that a normal random variable is less than its mean is .5

Solve this system of equations algebraically: y x = 19 – x2 x y = 80 1. Isolate one variable in the system of equations. Y = –x2 – x 19 y = –x 80 2. Use substitution to create a one-variable equation. –x 80 = –x2 – x 19 3. Solve to determine the unknown variable in the equation. The system has real number solution(s).

Answers

System of equations helps to solve real-life problems. The system of equations will not have no solution.

What is a System of the equation?

Inconsistent System

A system of equations to have no real solution, the lines of the equations must be parallel to each other.

Consistent System

1. Dependent Consistent System

A system of the equation to be Dependent Consistent System the system must have multiple solutions for which the lines of the equation must be coinciding.

2. Independent Consistent System

A system of the equation to be Independent Consistent System the system must have one unique solution for which the lines of the equation must intersect at a particular.

The two of the system of equations given to us are,

[tex]y+x=19-x^2[/tex]

[tex]x+y = 80[/tex]

Now,

1. The first step is to isolate one variable in the system of equations,

[tex]y=19-x^2-x[/tex]

[tex]y=80-x[/tex]

2. The second step is to substitution to create a one-variable equation.

[tex]80-x=19-x^2-x\\x^2-x+x=19-80\\x^2 = -61[/tex]

Now, since the value of x  is the negative square root. therefore, the system of equations will not have a real number of solutions.

If we plot the two equations on the graph, then the line of the system of equations will not intersect any point, therefore, the system of equations will have no solution.

Hence, the system of equations will not have no solution.

Learn more about the System of the equation:

https://brainly.com/question/12895249

Answer:

0 solutions

Step-by-step explanation:

Edge 2022

good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.

Answers

Answer: C. [tex]f(n) = -4(-3)^{n-1}[/tex]

Step-by-step explanation: The formula for a geometric sequence is [tex]ar^{n-1}[/tex], where a = first term in the sequence

r = common ratio

n = position of term

Here they already told us a = -4, so we have to figure out r. We can see that in the sequence -4, 12, -36, 108... the terms are being multiplied by -3, which is why the negative and positive terms alternate.

Therefore, the formula is: [tex]f(n) = -4(-3)^{n-1}[/tex]

You can try inserting n to check it.

[tex]f(1) = -4(-3)^{1-1} = -4\\f(2) = -4(-3)^{2-1} = 12\\f(3) = -4(-3)^{3-1} = -36\\f(4) = -4(-3)^{4-1} = 108[/tex]

Option C

Let's verify

f(1)=-4(-3)^0=-4f(2)=-4(-3)^1=12f(3)=-4(-3)^2=-36

Hence verified

Please Help ASAP I Need It Plsss

Answers

Answer:

need points lol

Step-by-step explanation:

work out the size of angle x =304-115

Answers

The computation of the angle given simply shows that the value of angle x is 109°.

How to calculate the angle?

From the information given, it can be noted that two numbers are given and there's a subtraction sign between the numbers given.

Therefore, in this scenario, one simply just has to subtract the numbers. Therefore, thus goes thus:

x = 304 - 115

x = 189

The value of x is 189°.

Learn more about angles on:

https://brainly.com/question/25770607

help meeeee I'm going to fail ​

Answers

Answer:

A, C, and D, are correct

Step-by-step explanation:

We can find the answer to each of these by simply doing the math for each one

[tex]3*\sqrt{2} = 4.24\\\frac{1}{2} *\sqrt{68} = 4.123\\\sqrt{17} = 4.123[/tex]

Answer:

A, C, and D

Step-by-step explanation:

A is 4.24

B is 3.54

C is 4.12

D is 4.12

E is 5.29

Consider the trinomial 6x2 13x 6. The value of ac is. The value of b is. The two numbers that have a product of ac and a sum of b are 4 and.

Answers

The value of ac is 36 and the value of b is 13. Then the value of ac + b is 49. The two numbers are 4 and 9.

What is polynomial?

Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.

Consider the trinomial 6x² + 13x + 6.

Compare with the standard equation, we have

ax² + bx + c

Then we have

a = 6

b = 13

c = 6

The product of ac will be

ac = 6 × 6 = 36

The sum of ac and b will be

ac + b = 36 + 13 = 49

The two numbers that have a product of ac and a sum of b are 4 and 9.

More about the polynomial link is given below.

https://brainly.com/question/17822016

Answer:

36,13,9

Step-by-step explanation:

Just took the test 2022

Help plssss geometry!!

Answers

Answer:

x=4

Step-by-step explanation:

both angles add up to 90* because it is a right angle

10x + 12x + 2 = 90

22x + 2 = 90

subtract 2 from both sides of the equation

22x = 88

divide both sides by 22

x = 4

35 + 2x = 60. HELP PLS

Answers

Answer:

=> x = 12.5

Step-by-step explanation:

=> 35 + 2x = 60

=> 2x = 60-35

=> 2x = 25

=> x = 25/2

=> x = 12.5

X = 12.5

35 + 2x = 60 - 35

2x = 25
/2 /2

X=12.5

Need Help please serious answers. I appreciate it !!

Answers

70 + (8x + 2) + 60 =180
132 + 8x = 180
8x = 180 - 132
8x = 48
Divide through by 8
x=6

A) x=6

B) 50

Step-by-step explanation:

[tex]8x + 2 + 70 + 60 = 180[/tex]

[tex]8x = 180 - 132[/tex]

[tex]8x = 48[/tex]

[tex]x = 6[/tex]

~

[tex] \angle \: b = 8x + 2[/tex]

[tex]8(6) + 2[/tex]

[tex]50[/tex]

[tex] \angle \: b = 50[/tex]

~

A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second. After approximately 2. 3 seconds, the ball lands on the ground. The ball’s motion can be modeled using the function f(x) = –10x2 20x 8. What is the height of the ball 1. 5 seconds after it is thrown? 11. 7 meters 13. 8 meters 15. 5 meters 17. 5 meters.

Answers

The height of the baseball after the 1.5 seconds of time as the boy throw the ball is 15.5 meters.

How to model a mathematical function?

The mathematical functions is used to represent the general problem in the mathematical way to solve them.

Steps to write down the simple mathematical function-

Identify all the factors of the expression.Assume a variable for the changing values.Put a coefficient for the variable, if there is any rate of change of variable.Use constant numbers for the fixed values.

A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second.

After approximately 2.3 seconds, the ball lands on the ground.

The ball’s motion can be modeled using the function

[tex]f(x) = -10x^2 +20x+ 8[/tex]

Here, x represents the time in seconds.

As, the height of the ball 1.5 seconds after it is thrown has to be found out. Thus, put the values of in the above equation as,

[tex]f(x) = -10(1.5)^2 +20(1.5)+ 8\\f(x)=-22.5+30+8\\f(x)=15.5\rm \; m[/tex]

Hence, the height of the baseball after the 1.5 seconds of time as the boy throw the ball is 15.5 meters.

Learn more about the modeling the mathematical function here;

https://brainly.com/question/25896797

what is the problem for 3x + 2 =5 and what is the answer??

Answers

Answer:

x=1

Step-by-step explanation:

3x1+2=5

Answer:

I'm assuming you're trying to find x.

In this problem, x = 1

Step-by-step explanation:

3x + 2 = 5

    -2     -2    Subtract 2 from each side

3x = 3

3x/3 = 3/3    Divide each side by 3

x = 1

Brandon bought 21 chicken wings for $39. 90. How much would it cost for 15 wings?

Answers

Answer:

$28.50

Step-by-step explanation:

21 chicken wings= $39.90

1 chicken wing= 39.90÷21= $1.90

15 chicken wings= 15×1.90= $28.50

:)

Answer:

$28.50

Step-by-step explanation:

Knowing that :
Brandon brought 21 chicken wings for $39.90

Asking:

How much would it cost for 15 Wings?

Solve:

We first need to know how much is 1 Wings.

To find that Divide Cost by chicken

Thus, 39.90 divide by 21..

=1.90

Hence, 1 Wings ⇒ 1.90

Then Multiply by 15 wings to find the cost of 15 wings.

1.90 * 15 = 28.50

Therefore, 15 Wings Cost $28.50

[RevyBreeze]

I need help with numbers 18-20 The instructions are to factor the greatest common factor out of every term of polynomial. Pls help me I have not been able to figure these problems out

Answers

Answer:

Solving steps:

18) 16a²b - 8abc + 4ab²c²

=> 4ab(4a - 2c + bc²)

19) 3x³ + 3x² - 3x

=> 3x(x² + x - 1)

20) 2abx² + 3abx³ - 4abx[tex] {}^{4} [/tex]

=> abx²(2 + 3x - 4x²)

Square B is a dilation of square A. What is the scale factor?

Answers

Answer:

54:45

6:5

this is the scale factor

HELP ME EXPLAIN PLEASE HURRY!!!!

Answers

Answer:

40

Step-by-step explanation:

The formula is: a² + b² = c²

Looking at the picture, 41 is the hypotenuse of the triangle. We can now solve.

9² + b² = 41²

Which the answer is 40.

How many minutes longer does it take Morowa to complete a job in three-quarters
of an hour than Osei who completes the job in five-twelfths of an hour!

Answers

The answer is 50 minutes

A state representative took several random surveys of adults to find which palce they visited most frequently. The average of all of the surveys is shown in this table.

Answers

Answer:

On average, 2 out of 10 adults visited the museum most frequently

Step-by-step explanation:

A cone has a volume of 314 cubic meters and a height of 12 meters. What is its radius?

Answers

Answer:

About 5 meters

Step-by-step explanation:

v= πr² h/3

r= √3 v/πh= 3•314/ π•12= 4.99873 rounded which then rounds to 5

1)) Solve for t. t 1.28 > 5.5
[tex]1.28 \geqslant \frac{t}{5.5} [/tex]

Answers

Answer:

x = 1.28t^2 > 5.5

Answer:

[tex]t\le \:7.04[/tex]

Step-by-step explanation:

[tex]1.28\ge \cfrac{t}{5.5}\:(\bold{Switch \: sides})[/tex]

[tex]\cfrac{t}{5.5}\le \:1.28[/tex]

[tex]\cfrac{5.5t}{5.5}\le \:1.28\cdot \:5.5\:(\bold{ Multiply\: both\:sides\:by\: 5.5})[/tex]

[tex]t\le \:7.04[/tex]

~

What is the value of this expression?


( 12 1/3 + 5 1/3 ) - ( 7 4/8 - 7 1/6 )



Enter your answer on the box as a mixed number in simplest form.

Answers

Answer:

17 1/3

Step-by-step explanation:

12 1/3+ 5 1/3=17 2/3

7 4/8- 7 1/6=1/3

17 2/3-1/3= 156/9  Simplest form=17 1/3

Hope that helped.



A missing piece of a board game, a circular disk, had an area of 100,608. 7. The replacement disks online a

listed using circumferences. What size circumference should be ordered?

1. 179 mm

2. 1,263,645. 774 mm

3. 0. 7 mm

4. 1,124. 12 mm

Answers

First determine the radius of the circle from the area of the circle
Use the radius determined above to calculate the circumference
Area of a circle = np2
where r= radius
n= pi = 3.14
100.608.7mm=mp2
to determine the radius, divide both sides of the equation by 3.14
32,040.98726mm = p2
Find the square root of 32,040.98726mm
V32,040.98726mm
r= 179mm
Circumference of a circle = 2nr
2 × 179 × 3.14 = 1.124.12 mm

Hope this helps

In an extensive government study conducted this year a simple random sample of 500 households was obtained and 80 had experienced property damage due to a crime. Calculate and interpret a 95% confidence interval for the true proportion of households that have experienced property damage due to crime

Answers

Using the z-distribution, the 95% confidence interval is (0.1279, 0.1921), and it means that we are 95% sure that the proportion for the entire population is between these two values.

What is a confidence interval of proportions?

A confidence interval of proportions is given by:

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which:

[tex]\pi[/tex] is the sample proportion.z is the critical value.n is the sample size.

In this problem:

A sample of 500 households was obtained and 80 had experienced property damage due to a crime, hence [tex]n = 500, \pi = \frac{80}{500} = 0.16[/tex].95% confidence level, hence[tex]\alpha = 0.95[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.95}{2} = 0.975[/tex], so [tex]z = 1.96[/tex].

Hence:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.16 - 1.96\sqrt{\frac{0.16(0.84)}{500}} = 0.1279[/tex]

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.16 + 1.96\sqrt{\frac{0.16(0.84)}{500}} = 0.1921[/tex]

The 95% confidence interval for the true proportion of households that have experienced property damage due to crime is (0.1279, 0.1921), and it means that we are 95% sure that the proportion for the entire population is between these two values.

More can be learned about the z-distribution at https://brainly.com/question/25890103

please help me thank you​

Answers

Answer:

grafic 2

Step-by-step explanation:

A cone has a volume of 376.8 cubic
millimeters and a height of 10
millimeters. What is its radius?

Answers

Answer:

36.23

Step-by-step explanation:

Finding the radius of a cone with volume given =

3V / πh, π = 22/7 =  3.14

3 x 376.8 / π x h  =  1130. 4 / π x 10

1130.4 / 3.14 x 10 = 1130.4 x 31.42 = 36.23

   

Find g(x), where g(x) is the translation 17 units right and 15 units down of f(x)=

3(x+8)2–6.

Answers

Answer:

Step-by-step explanation:

what’s the answer??

Answers

Answer:

KL = 3.4

Step-by-step explanation:

[tex]\frac{LI}{HE} =\frac{KL}{HG}[/tex]

[tex]\frac{5}{16} =\frac{KL}{11}[/tex]

[tex]KL=11(\frac{5}{16} )=55/16=3.4375[/tex]

Hope this helps

PARALLELOGRAM QUESTION, LOTS OF POINTS! (i will report if you dont answer correctly)

Answers

Answer:

65°

step-by-step explanation:

opposite angles of a parallelogram are of equal measure.

solve for x:

116x - 1 = 114x + 1

116x - 114x = 1 + 1

2x = 2

x = 1

Find angle C:

The base angles in parallelogram sum up to 180°

m∠C + 116(1) - 1 = 180°

m∠C = 180° - 115

m∠C = 65°

Solution:

We know that:

Opposite angles in a parallelogram are equal.Sum of the angles in a quadrilateral always sum up to 360°

This means that:

[tex]116x - 1 = 114x + 1[/tex][tex]\angle C = \angle E[/tex][tex](116x - 1) + (114x + 1) + \angle C + \angle E = 360\°[/tex]

Step-1: Find the value of x.

[tex]116x - 1 = 114x + 1[/tex]

[tex]\rightarrow 116x - 114x = 1 + 1[/tex]

[tex]\rightarrow 2x = 2[/tex]

[tex]\rightarrow \bold{x = 1}[/tex]

Step-2: Solve for ∠C.

[tex](116x - 1) + (114x + 1) + \angle C + \angle C = 360\°[/tex]

[tex]\rightarrow (116x - 1) + (114x + 1) + \angle C + \angle E = 360\°[/tex]                           [∠C = ∠E]

[tex]\rightarrow 116x - 1 + 114x + 1 + 2\angle C = 360\°[/tex]                                  

[tex]\rightarrow 230x + 2\angle C = 360\°[/tex]                                        

[tex]\rightarrow 230(1) + 2\angle C = 360\°[/tex]                                                                 [x = 1]

[tex]\rightarrow 230 + 2\angle C = 360\°[/tex]                                                                          

[tex]\rightarrow 2\angle C = 360 - 230[/tex]

[tex]\rightarrow 2\angle C = 130[/tex]

[tex]\rightarrow \boxed{\bold{\angle C = \frac{130}{2} = 65\°}}[/tex]                                                      

Break Even Analysis for Small Business 1) Jesse wants to start a business making and selling skateboards. She will charge $75 for each one. Her cost will be $30 per skateboard for materials. She must pay $500 per month rent (which includes utilities) so that she has a place to make and sell the skateboards. a) Write a rule for her revenue (money coming in). b) Write a rule for her cost.​

Answers

Answer:

  a) r(b) = 75b

  b) c(b) = 30b +500

Step-by-step explanation:

Revenue is the product of the selling price per unit and the number of units. The cost will be the sum of fixed (overhead) cost and production cost per unit multiplied by the number of units produced.

__

Let b represent the number of skateboards Jesse produces in a month.

a)

Jesse receives $75 for each skateboard sold. Her revenue from selling 'b' skateboards is ...

  r(b) = 75b

__

b)

It costs Jesse $30 for each skateboard produced, and $500 for overhead. Her total cost is ...

  c(b) = 30b +500

_____

Additional comment

In order to break even, Jesse's revenue must equal her cost:

  75b = 30b +500

  45b = 500

  b = 11 1/9

Jesse must produce and sell 12 skateboards each month to cover her costs. (In a real business, there are additional considerations related to inventory, shrinkage, returns, discounts, and other things that may increase cost or reduce revenue.) After covering costs, each additional skateboard sold will give Jesse a profit of $45.

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