Answer please number 15 only

Answer Please Number 15 Only

Answers

Answer 1

Answer:

a) -2/9

Step-by-step explanation:

2/3 - 5/6, you would need to start by making the denominators the same, so 2/3 would become 4/6. 4/6-5/6 = -1/6.

-1/6 ÷ 3/4, use the keep change flip rule

-1/6 × 4/3 then multiply directly across:

-1×4=-4

6×3=18

-4/18 reduces to -2/9


Related Questions

15. Write the conditional statement that the Venn diagram represents. Be sure to use
the "if, then" format (2 points).
Flower
Rose
Answer:

Answers

The conditional statement that the Venn diagram represents is:

"If it is a rose, then it is a flower".

How to write the conditional statement?

Here we have a Venn diagram, in it we can see that the set called "roses" is included in the set called "flowers".

So, the conditional statement is:

"if it belongs to the smaller set, then it belongs to the larger set"

This is kinda trivial.

For our case, it will be written as.

"If it is a rose, then it is a flower".

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Solve the quadratic equation by factoring Write the answer in reduced fraction form, if necessary.

Answers

Given:

The quadratic equation ,

[tex]42x^2-29x-5=0[/tex]

The solution of the given quadratic equation can be obtained as,

[tex]\begin{gathered} x=\frac{-(-29)\pm\sqrt[]{(-29)^2-4(42)(-5)}}{2\times42} \\ \text{ =}\frac{29\pm41}{84} \\ x=\frac{29+41}{84}\text{ or x=}\frac{29-41}{84} \\ x=\frac{70}{84}\text{ or x=}\frac{-12}{84} \\ x=\frac{10}{12}\text{ or x=}\frac{-3}{21} \\ x=\frac{5}{6}\text{ or x=}\frac{-1}{7} \end{gathered}[/tex]

Hence, the solutions are,

[tex]x=\frac{5}{6},\text{ }\frac{-1}{7}[/tex]

Ayuda es para hoy

Diego compra dos boletos para el juego de diversiones(Montaña rusa) cada uno le costó $4 dólares, para llenar el juego y empezar la vuelta hace falta 4 personas más, ¿Cuánto recaudará el cobrador del juego por cada vuelta?

A)$ 12 dólares

B)$ 24 dólares

C)$ 8 dólares

D)$ 32 dólares

Answers

Answer:

es la b

Step-by-step explanation:

porque diego es good

:D

can somebody help me please with this problem in mathematics.

Answers

Answer:

$15 × .8 = $12

$12 × .75 = $9

if you answer this question and the one before this question you will ahve good luck for 7 years!

if you dont, you will have bad luck. see attachment below and my question b4 this

Answers

Answer:x=32°

y=35°

Step-by-step explanation:

23°+32°+y=90°

55°+y=90°

y=35°

35°+23°+x=90°

58°+x=90°

x=32°

Answer:

Angle AOE = angle FOB = 32° (vertically opposite angles)

x = 32°

Since GH is a straight line, angle COH = angle COG = 90°

Angle BOD = angle COA = y° (vertically opposite angles)

y = 90-32-23 = 35°

Please answer Part A and B

Answers

Answer:

Part A is Figure D

Part B is 3 units left

Algebraic expression
2(x-7) + 10

Answers

Answer:

2(x-2)

Step-by-step explanation: distribute, add the numbers, common factor

Carlos drives 161 kilometers at a speed of 70 kilometers per hour. For how many hours does he drive?

Answers

He drove for 2.3 hours.

What is speed?

The speed at which an object's location changes in any direction. The distance travelled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar quantity. 

A body's speed is the amount of distance it travels in one unit of time.

Therefore, the SI Unit for speed is the meter per second, abbreviated as m/s 

Formula

Speed = [tex]\frac{distance}{time }[/tex]

Time = [tex]\frac{distance}{speed}[/tex]

Given Data

Distance = 161km

Speed = 70km

Putting values in the formula

Time = [tex]\frac{161}{70}[/tex]

Time = 2.3

He drove for 2.3 hours.

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A biased dice is rolled and the results are recorded in a table. The dice is rolled once more. a) Use the table to estimate the probability that a 3 will be rolled. b) If the dice is rolled another 500 times, how many sixes would you expect to roll? Score 1 2 3 4 5 6 Frequency 12 35 11 23 7 12​

Answers

The probability that a 3 will be rolled would be 0.125 and the expected number of 6's roll would be 68.

What is probability?

Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.

The events' estimated probabilities are as follows, according to the exponential probability theory:

P(3) = 0. 125

P(6 in 500 rolls) = 68 rolls

Number of times event occurs / number of trials

A number of attempts = sum of frequency:

(12+35+11+23+7+12) = 88

So the probability that a 3 will be rolled as

⇒ number of 3's / number of attempts

⇒ 11/88 = 0.125

The number of 6's probable in 500 rolls

⇒ (12 /88) × 500

⇒ 68.18 = 68

Therefore, the expected number of 6's roll would be 68.

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I need help answering this question

Answers

If this is an arithmetic sequence, each of the terms will have a common difference. Let's check.

[tex]\begin{gathered} 3-21=-18 \\ 21-147=-126 \end{gathered}[/tex]

As we can see, each of the terms does not have a common difference. The first one is -18 while the other one is -126. Therefore, this is not an arithmetic sequence.

Now, let's check if this is a geometric sequence. If it is, each of the terms will have a common ratio.

[tex]\begin{gathered} 3\div21=\frac{1}{7} \\ 21\div147=\frac{1}{7} \end{gathered}[/tex]

As we can see, each of the terms has a common ratio which is 1/7. Therefore, 147, 21, 3 is a geometric sequence and the common ratio is equal to 7.

1. A manufacturing line can produce 15 widgets
in 2 minutes. How many widgets can the line
procuce in 30 minutes?

Answers

Answer:

225

Step-by-step explanation:

number of 2 minutes in 30 minutes

= 30 ÷ 2 = 15

each 2 minutes produces 15 widgets , then

15 ( lots of 2 minutes ) produces 15 × 15 = 225 widgets

Which is the better buy: 1 liter of soda for $1, or 1 gallon of soda for $4? Justify your answer.

Answers

It is better to buy 1 liter of soda for $1 compare to 1 gallon of soda for $4  .

As given in the question,

1 liter of soda for $1                    ____(1)

1 gallon of soda for $4

Relation between gallons and liters is given by:

1 gallon is equal to 3.785 liters

1 gallon of soda = $4

⇒ 3.785 liter = $4

⇒ 1 liter = $ ( 4 / 3.785 )

⇒ 1 liter = $ 1.056                _____(2)

From (1) and (2)

$1.056 > $1

It shows $1.056 is little bit higher than $1.

Therefore, it is better to buy 1 liter of soda for $1 compare to 1 gallon of soda for $4 .

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the probability of the event that 0

Answers

Answer:

basically the even twill not happen as the probability of that is 0

whats 324/378 simplfy

Answers

Answer:6/7

Step-by-step explanation:

Answer:

162/189

Step-by-step explanation:

Divide by 2...................

The life expectancy of a new born kid increases at a rate of 1.5 years for every day the kid is alive during the first 60 days after being born. The expectancy reduces by 0.5 year for every day the kid is ill during these first 60 days. The initial life expectancy of a new born kid is 10 years. What is the life expectancy of a kid born on a Tuesday, after 37 days of being born (assume the kid is alive on the 37th day) if the kid falls ill on every Sunday?​

Answers

The total life expectancy of the kid is 45.5 years.

rate of increase of life expectancy = 1.5 years per day

The rate of reduction of life expectancy = 0.5 years per day

37 days will mean ((7x5)+2), i.e., 5 complete weeks and 2 extra days.

Let the 2 extra days be Tuesday and Wednesday, now the 5 complete weeks will start from Thursday and after 37 days, the day will be Wednesday.

In this duration 5 Sundays will come on which the kid falls ill, so the reduction in life expectancy will be: 0.5 x 5= 2.5 years.

The remaining days will be: 37 - 5 = 32

So, the increase in life expectancy will be: 1.5 x 32= 48 years.

Thus, the total life expectancy of the kid is found to be : (48-2.5)years=45.5 years.

What are linear equations?

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," where y and x are the variables.

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Relative rates of Growth:Not that difficult but some rules are needed. Ask me if you have any questions regarding the material. Thanks!

Answers

[tex]\begin{gathered} \text{Given} \\ \lim _{x\rightarrow\infty}\frac{f(x)}{g(x)}=5 \end{gathered}[/tex]

Observing the given limit, as x approaches infinity, the quotient of two limits, f(x) and g(x) is equal to the constant

he definition therefore of the given is that it shows f(x) and g(x) grows at the same rate as x goes to infinity.

Use the drop-down menus to complete the statements to match the information shown by the graph.​

Answers

Using the concept of the slope of a linear function, it is found that:

Pool A is filing up slower than Pool B because the slope of the graph for Pool A is less than that of the graph for Pool B.The slope of the graph tells you the unit rate in gallons per minute.

What is a linear function?

A linear function, in slope-intercept format, is modeled according to the following rule:

y = mx + b

In which:

The coefficient m is the slope of the function, which is the rate of change of the function, that is, the change in y divided by the change in x.The coefficient b is the y-intercept of the function, which is the the value of y when the function crosses the x-axis(x = 0).

For this problem, we have that Pool B starts with significantly less water than Pool A, but their volumes get closer, meaning that Pool B fills faster and has a higher slope, that is, it fills more gallons per minute into the pool.

The information above it what we use to complete the statements.

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Use the sequence below to complete each task. -5, 15, -45, ... a. Identify the common ratio (r). b. Write an equation to represent the sequence. C. Find the 12th term (22)

Answers

you get he common ratio by dividing a term by the previous term

so,

15/-5 = -3

common ratio = -3

Geometric seuqence has a general term of:

[tex]a_n=ar^{n-1}[/tex]

Wher

r is common ratio

a is first term

Given,

a = -5

r = -3

We have:

[tex]\begin{gathered} a_n=ar^{n-1} \\ a_n=-5(-3)^{n-1} \\ a_n=-5\times-3^n\times-3^{-1} \\ a_n=-5\cdot-3^n\times-\frac{1}{3} \\ a_n=-\frac{5}{3}(3)^n \end{gathered}[/tex]

12th term is basically n = 12

So, we have:

[tex]\begin{gathered} a_n=-\frac{5}{3}(3)^n \\ a_{12}=-\frac{5}{3}(3)^{12} \\ a_{12}=-885735_{} \end{gathered}[/tex]

The sum of three numbers is 135. The second number is 4 times the third. The first number is 9 less than the third. What are the numbers?


First number:
Second number:
Third number:

Answers

Answer:

First number: 21

Second number: 84

Third number: 30

21 times 4 = 84 which checks out.

30 - 21 = 9 which also checks out

21 + 84 + 30 = 135 so they are correct!

Step-by-step explanation:

Hope it helps! =D

5-2x<11
i don’t know how to solve this

Answers

Answer:

x>3

Step-by-step explanation:

5-2x<11

subtract 5on both sides of the equation

-2x<11-5

-2x<6

divide through by n negative 2,and the equality will change

X>-3

Hello there! Let's solve this inequality for the required variable, which is x.

With the given inequality, it can't be done in just one step, however it can be done in a few steps, which are as follows:

Subtract 5 from both sides.

[tex]\implies\boldsymbol{5-2x < 11}[/tex]

[tex]\implies\boldsymbol{-2x < 6}[/tex]

Divide both sides by -2. Remember to flip the inequality sign.

[tex]\underbrace{\implies\boldsymbol{x > -3}}_\sf{answer}}[/tex]

I hope it helps, feel free to reach out if you have any queries :)

find the equation of the line

Answers

Answer:

y = 1/2x + 1/2

Step-by-step explanation:

I'm going to give me answer is gradient/slope form :

To work out the gradient we make a triangle from the line and do :

change in y / change in x

You should get 1/2

Now we have y=1/2x + c

to work out c we substitute a point from the line and solve for c :

Point (1 , 1)

1 = 1/2(1) + c

1 = 1/2 + c

c = 1/2

So our final answer is y = 1/2x + 1/2

Hope this helped and have a good day

For each equation, choose Rational or Irrational to show your answer.

Answers

[tex]\begin{gathered} 3x^2=27 \\ x^2=\frac{27}{3} \\ x^2=9 \\ x=\sqrt[]{9} \\ x\text{ = 3} \\ \text{This answer is rational} \end{gathered}[/tex][tex]\begin{gathered} y^3=49 \\ y\text{ =}\sqrt[3]{49}=\text{ 3.65930571} \\ This\text{ is irrational} \end{gathered}[/tex][tex]\begin{gathered} p^2=169 \\ p\text{ = }\sqrt[]{169} \\ p\text{ = 13} \\ \text{This is rational} \end{gathered}[/tex][tex]\begin{gathered} u\sin g\text{ Pythagoras} \\ d\text{ =}\sqrt[]{6^2+4^2} \\ d\text{ =}\sqrt[]{52} \\ d\text{ = 7.21102551 blocks from the start} \\ \end{gathered}[/tex]

answer both questions if possible or just the main questions

ASAP

Answers

Answer: Domain: [-4,infinity)

Range: (-infinity,6]

f(-1) is 3

Step-by-step explanation:

Answer: Domain: [tex]x\geq -4[/tex]

Range: [tex]y\leq 6[/tex]

f(-1) = 3

Step-by-step explanation:

(-4,6) and (0,2) are both points on the line, so the equation of the line is

y = -x + 2

1 + 2 = 3

Which inequality in standard form represents the shaded region?Find all the solutions to the equation 4x3 + 16x2 + 28x = 0.

0, negative 4 + 2 i StartRoot 3 EndRoot, negative 4 negative 2 i StartRoot 3 EndRoot
0, 4 + 2 i StartRoot 3 EndRoot, 4 minus 2 i StartRoot 3 EndRoot
0, negative 2 + i StartRoot 3 EndRoot, negative 2 minus i StartRoot 3 EndRoot
0, 2 + StartRoot 3 EndRoot, 2 minus i StartRoot 3 EndRoot

Answers

All solutions to the cubic equation, 4•x³ + 16•x² + 28•x = 0, are presented as follows;

0, -2 + i•√(3), -2 - i•√(3), which is the option;

0, negative 2 + i StartRoot 3 EndRoot, negative 2 minus i StartRoot 3 EndRoot

What are the solutions to a cubic function?

The solutions of a cubic function are given by the values at which the graph intersects the horizontal axis.

First Part

The graph showing the shaded region of the inequality is left out

Second part;

The given equation can be presented as follows;

4•x³ + 16•x² + 28•x = 0

Required;

To find all the solutions of the equation

Solution;

The solutions of the equation are given by the locations on the graph where the equation intersects the x–axis, which are therefore, the points where the function is equal to 0

The equation 4•x³ + 16•x² + 28•x = 0 can therefore be used to find the solution as follows;

4•x³ + 16•x² + 28•x = 0

x•(4•x² + 16•x + 28) = 0

x•(4)•(x² + 4•x + 7) = 0

x•(x² + 4•x + 7) = 0 ÷ (4) = 0

x•(x² + 4•x + 7) = 0

Which by the multiplicative identity of 0, gives;

x = 0 or x² + 4•x + 7 = 0

Therefore;

x = 0 is a solution to the equation

The other solutions are found from the quadratic equation, x² + 4•x + 7 = 0, using the quadratic formula that gives the solution to the general quadratic equation, a•x² + b•x + c = 0, as follows;

[tex] \displaystyle{x = \frac{ - b \pm \sqrt{ {b}^{2} - 4 \times a \times c } }{2 \times a }}[/tex]

Comparing the general form of the quadratic equation to the quadratic equation from the question;

a•x² + b•x + c = 0

x² + 4•x + 7 = 0

Gives;

a = 1

b = 4

c = 7

Plugging in the above values of a, b, and c, we get;

[tex] \displaystyle{x = \frac{ - 4 \pm \sqrt{ {4}^{2} - 4 \times 1 \times 7 } }{2 \times 1} = \frac{ - 4 \pm 2 \cdot\sqrt{ - 3} }{2} }[/tex]

Which gives;

x = -2 ± √(-3) = -2 ± i•√(3)

The other solutions are therefore;

x = -2 + i•√(3) and x = -2 - i•√(3)

The solutions of the equation, 4•x³ + 16•x² + 28•x = 0, are therefore;

x = 0, x = -2+i•√(3), and x = -2 - i•√(3)

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Mario can save 40% on headphones at Best Buy with a coupon from the paper. Circle all of
the expressions he can use to find the discounted price of the headphones with an original
price of p.
a. 0.40p b. 0.60p c. p – 0.40 d. p – 0.40p

Answers

Answer: B and D.

Step-by-step explanation:

1) Find 40% as a decimal

100% = 1

40% = 0.4

2) It's -40% of its total value. So minus its value time 40%.

p - 0.4p

3) Simplify

0.6p

A) 0.4p not equal 0.6p X

B) 0.6p = 0.6p

C) p - 0.4 not equal 0.6p X

D) p-0.4p = 0.6p

Rewrite 4/9 and 7/15 so that they have a common denominator

Answers

it would be 20/45 and for 21/45 not so sure if that’s correct tho I haven’t done this in a long time

The table shown gives values of the function y=g(x) for selected values of x. Which represents g(x)

Answers

Given:

A table with the given values of the function y=g(x).

To find the function that represents g(x), we substitute a value of x into the given options.

For:

g(x =3+2x:,:

Let x=3

[tex]\begin{gathered} g(x)=3+2x \\ =3+2(3) \\ =9 \end{gathered}[/tex]

Based on the given table, the value g(x) is 24 when x=3. So g(x)=3+2x is not the function that represents g(x).

For

[tex]\begin{gathered} g(x)=3\cdot2x \\ =3\cdot2(3) \\ =18 \end{gathered}[/tex]

The value of g(x) =18 when x=3, so this is not the function.

For g(x)=3x^2:

[tex]\begin{gathered} g(x)=3x^2 \\ =3(3)^2 \\ =27 \end{gathered}[/tex]

Hence, this is not the function as well.

For g(x)=3(2)^x:

[tex]\begin{gathered} g(x)=3\cdot2^x \\ =3\cdot2^3 \\ =3(8) \\ g(x)=24 \end{gathered}[/tex]

We can notice that when x=3, the value of g(x) =24 which is the same as the value of g(x) in the given table.

To double check this, we plug in the other values of x.

Therefore, the answer is:

[tex]g(x)=3\cdot2^x[/tex]

A scale on a map shows that 3 centimeters represents 10 kilometers. what nuber of centimeters on the map represents an actual distance of 25 kilometers

Answers

10 is half of 20. 3 kilometers represents 10 kilometers, so if you double 3, you get 6. This is because 10 is half of 20, so 3 is half of 6. You still need to find out how much 5 kilometers is represented by, so I would do this -

10 divided by 2, is 5. What’s the number we need now? 5! Since 5 is half of 10, then we can also cut 3 in half. 3 divided by 2 is 1.5.

Equation = 6kilo + 1.5 kilo = 7.5 kilograms.


THE ANSWER IS 1.5 KILOGRAMS!!!

A line goes through the points (-3, -2) and (3, 6). Write the equation of the line in Slope-Intercept form, y = mx + b.​

Answers

LET US FIND THE GRADIENT

[tex]m = \frac{y2 - y1}{x2 - x1 \\ \\ } \\ = \frac{6 - ( - 2)}{(3 - ( - 3)} \\ = \frac{6 + 2}{3 + 3} \\ = \frac{8}{6} \\ m= \frac{4}{3} [/tex]

I WILL USE THE POINTS (-3,-2) TO GET THE VALUE OF C

[tex] - 2 = \frac{4}{3} ( - 3) + c \\ - 2 = - 4 + c \\ - 2 + 4 = c \\ c = 2[/tex]

THEREFORE THE EQUATION IS

[tex]y = \frac{4}{3} x + 2[/tex]

ATTACHED IS THE SOLUTION

Jason is putting crown molding in his master bedroom. The length of the room is 22 feet, and the width is 20 feet.How much crown molding will Jason need if he wants to have 20% extra in case of mistakes or damage?

Answers

SOLUTION:

Step 1:

In this question, we are given the following:

Jason is putting crown molding in his master bedroom. The length of the room is 22 feet, and the width is 20 feet.

How much crown molding will Jason need if he wants to have 20% extra in case of mistakes or damage?

Step 2:

The details of the solution are as follows:

[tex]\begin{gathered} Perimeter\text{ of the Rectangle = Length + Breadth + Length + Breadth} \\ Perimeter\text{ of the Rectangle = 22 + 20 + 22 + 20 = 84 feet} \end{gathered}[/tex]

Then, we need to calculate 20% increase of 84 feet, we have that:

[tex]\begin{gathered} =(\frac{100\text{ + 20 \rparen}}{100}\text{ x 84 feet} \\ =\text{ }\frac{120}{100}\text{ x 84} \\ =1.\text{ 2 x 84} \\ \text{= 100. 8 feet} \end{gathered}[/tex]

CONCLUSION:

The final answer is:

[tex]100\text{ . 8 feet}[/tex]

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