I need step by step written answer for this​

I Need Step By Step Written Answer For This

Answers

Answer 1

Answer:

-1/2

Step-by-step explanation:

2/5 * - 3/7 - 1/14 - 3/7 * 3/5

= - 6/35 - 1/14 - 9/35

= - (6*2)/(35*2) - (1*5)/(15*5) - (9*2)/(35*2)

= - 12/70 - 5/70 - 18/70

= (-12 - 5 - 18)/70

=- 35/70

= - 1/2

Answer 2
2/5 * - 3/7 - 1/14 - 3/7 * 3/5
- 6/35 - 1/14 - 9/35
- (6*2)/(35*2) - (1*5)/(15*5) - (9*2)/(35*2)
- 12/70 - 5/70 - 18/70
= (-12 - 5 - 18) /70
=- 35/70
- 1/2

Related Questions

Need help with math probelm if do 5 stars and brainly points

Answers

Step-by-step explanation:

let's first convert feet to inches

4 ft = 48 inches ( width )

6.5 ft = 78 inches ( length )

12.5 ft = 150 inches ( height )

each cube is 1/4 x 1/4 x 1/4

x-axis ( length )

78 ÷ 1/4 = 78 x 4 = 312 cubes

y-axis ( width )

48 x 4 = 192 cubes

z-axis ( height )

150 x 4 = 600 cubes

the total number of cubes fit in the closet is :

312 x 192 x 600 = 35,942,400 cubes

estimate the product 8.1 times 4.2

Answers

Answer:

Approximately 32

Step-by-step explanation:

8.1 is closest to 8

4.2 is closest to 4

Thus, you can estimate the product to be 8*4=32

The actual product is 8.1*4.2=34.02, so it's about 2 greater than the estimated product

Write the equation of the exponential function, base 2.

Answers

Answer:

y=4(12)x

Step-by-step explanation:

An exponential function is in the general form  

y=a(b)

A house owner pays a property tax of $10 for every $1,000 of assessed property value. What is the tax for a home assessed at $150,000.

Answers

Tax the assesed home would increase the total amount paid

The tax of a home assesed at $150,000 is $1500

How to determine the tax amount?

The given parameter can be represented using the following ratio:

Ratio = Tax : Amount

So, we have:

$10 : $1000 = Tax : $150000

Express as fraction

10/1000 = Tax/$150000

Multiply both sides by $150000

Tax = $1500

Hence, the tax of a home assesed at $150,000 is $1500

Read more about tax at:

https://brainly.com/question/25783927

What is the philtrum?
A. The creases in your lips
B. Centered and above your top lip where it dips down
C. Parts of your eyelids
D. The space between your nostrils

Answers

Answer:

Center and above your top lip where it dips down....

Evaluate the following limit, if it exists : limx→0 (12xe^x−12x) / (cos(5x)−1)

Answers

Answer:

[tex]\lim_{x \to 0} \frac{12xe^x-12x}{cos(5x)-1}=-\frac{24}{25}[/tex]

Step-by-step explanation:

Notice that [tex]\lim_{x \to 0} \frac{12xe^x-12x}{cos(5x)-1}=\frac{12(0)e^{0}-12(0)}{cos(5(0))-1}=\frac{0}{0}[/tex], which is in indeterminate form, so we must use L'Hôpital's rule which states that [tex]\lim_{x \to c} \frac{f(x)}{g(x)}=\lim_{x \to c} \frac{f'(x)}{g'(x)}[/tex]. Basically, we keep differentiating the numerator and denominator until we can plug the limit in without having any discontinuities:

[tex]\frac{12xe^x-12x}{cos(5x)-1}\\\\\frac{12xe^x+12e^x-12}{-5sin(5x)}\\ \\\frac{12xe^x+12e^x+12e^x}{-25cos(5x)}[/tex]

Now, plug in the limit and evaluate:

[tex]\frac{12(0)e^{0}+12e^{0}+12e^{0}}{-25cos(5(0))}\\ \\\frac{12+12}{-25cos(0)}\\ \\\frac{24}{-25}\\ \\-\frac{24}{25}[/tex]

Thus, [tex]\lim_{x \to 0} \frac{12xe^x-12x}{cos(5x)-1}=-\frac{24}{25}[/tex]

?A bag contains red, blue, and green candies. Benjamin pour
out a handful and counted 10 red, 6 blue, and 14 green
candies. According to these ratios, if the bag contains a total of
400 candies, about how many of them are blue?

Answers

About 66 candies are blue.

Gabriella has the following winter accessories:
1 winter coat: black
2 hats: blue, purple
2 pairs of boots: black, brown
5 pairs of mittens: black, blue, purple, red, white
Find the probability of wearing the coat with the purple hat, black boots, and purple mittens.
Find the probability of wearing the coat with the purple hat,black boots,purple mittens?

Answers

Answer:

4/10 = 2/5

2/5 is thr probability of her wearing coat with purple hat, black boots and purple mittens

find the value of 85²-15² using the difference of two squares method ​

Answers

Answer:

[tex]7000[/tex]

Step-by-step explanation:

Recall the form of the difference of squares.

[tex]x^2 - y^2 = (x+y)(x-y)\\\\\\[/tex]

Now let's apply it to your numbers:

[tex]85^2 - 15^2 = (85 + 15)(85 - 15)[/tex]

Simplify:

[tex](100)(70) = 7000[/tex]


255, 250, 245, ...
Find the 40th term.

Answers

Answer:

so here we minus 5 from 255 to get to 250 and we do it again to get to 245. for reaching the 40th term we should do it 39 times.

so, 255+ (-5) (39) = 255 - 195 = 60

which is our 40th term.

The 40th term of  (255, 250, 245...) is 60.

What is arithmetic progression ?The difference between any two successive integers in an arithmetic progression (AP) sequence of numbers is always the same amount. It also goes by the name Arithmetic Sequence. For instance, the natural number sequence 1, 2, 3, 4, 5, 6,... is an example of an arithmetic progression. It has a common difference of 1 between two succeeding terms (let's say 1 and 2). (2 -1). We can see that the common difference between two subsequent words will be equal to 2 in both the case of odd and even numbers.There are three distinct progression kinds. As follows:Mathematical Progress (AP)Graphical Progress (GP)Rhythmic Progress (HP)It is feasible to find a formula for the nth term for a certain kind of sequence called a progression. The most popular mathematical progression, with simple formulas, is the arithmetic progression.

Calculations :

The formula to find the nth term = [tex]a_{n}[/tex]  =  -5n + 260

                                                      = [tex]a_{40}[/tex] x 5n = 260

                                                      = 260 - 200 = 60

Learn more about Arithmetic progression refer :

https://brainly.com/question/24191546

#SPJ2

3. A shirt in a store usually costs $15.99, but today it's on sale for
25% off. The clerk says you will save $4.50. Is that true?
4. A book that usually costs $12 is on sale for 25% off.
How much will it cost?
5. After you answer 60% of 150 math problems, how many do
you have left to do?
90
6. A pet store's shipment of tropical fish was delayed. Nearly
40% of the 1,350 fish died. About how many lived?
7. The shipment had 230 angelfish, which died in the same
proportion as the other kinds of fish. About how many
angelfish died?
8. A church youth group was collecting cans of food. Their goal
was 1,200 cans, but they exceeded their goal by 25%. How
many cans did they collect?

Answers

Step-by-step explanation:

3)

25% of 15.99=0.25×15.99=3.9975

Nope you will save about 4 dollars.

4)

12$ is 100% of its price

If there is a 25% discount, it will cost 75% of its original value.

75% of 12=0.75×12=9

It will cost 9 dollars

5)

You have 40% left of 150

so, 0.4(150)=60

You ANSWERED 90 but you still have 60 remaining.

6)

60% of 1350 lived since 40% died

0.6×1350=810

about 810 lived

7)

40% of the angelfish died

0.4×230=92

92 angelfish died

8)

The collected 125% of what they expected

1.25×1200=1500

They collected 1500 cans

What is the area of this figure?

Answers

Answer:

35 cm²

Step-by-step explanation:

Area of the 2 triangles combined:

1/2 x 4 x 5 = 10

Area of the square:

5 x 5 = 25

10 + 25 = 35

4×4 or 4×5 perimeter times area

Write as a square of a binomial:

4.8xy+36y^2+0.16x^2

Answers

Answer:

(0.4x + 6y)²

Step-by-step explanation:

rsm sucks. i have a 5 hour class tomorrow and i hate it but here you go this is the right answer

Diego's soccer team played in a tournament. The tournament started at 8:07 A.M. It ended at 3:44 P.M. How long did the soccer tournament last?

Answers

Answer:

Step-by-step explanation:

7 hours and 37 minuties

Answer:

5 hours

Step-by-step explanation:

it lasted 5 hours for the tournament

The average transaction at an automatic teller can be completed in six minutes and customers arrive at the average rate of one every ten minutes. On average, how many customers are there in the queue? a. 0.375 Customers b. 0.900 Customers c. 1.160 Customers d. 4.000 Customers

Answers

Answer:

Zero, based on the information provided.

Step-by-step explanation:

The output rate of the teller machine is (1 transaction/6 minutes).  The input rate is (1 customer/10 minutes).  This means that the machine completes a cycle faster than the customers arrive, on the average.  I don't know how an average can be calculated without more information.  If we assume customers arrive every 10 minutes, and no one screws up the machine, that there should be no waiting line.   Is there more information about when the customers arrive?  E.g., 50 arrive in the first hour the machine is open.

If the average transaction at an automatic teller can be completed in six minutes and customers arrive at the average rate of one every ten minutes. The average number of customers in the queue is: B. 0.900 customers.

What is the average number?

M represent Markovian (memoryless) arrivals and service times

1 represents a single server.

Arrival rate (λ) is 1 customer every 10 minutes and the service rate (μ) is 1 customer every 6 minutes.

The formula to determine the average number of customers in the queue (Lq) is:

Lq = (λ^2) / (μ * (μ - λ))

Plugging in the values:

λ = 1/10

μ = 1/6

Lq = ((1/10)^2) / ((1/6) * ((1/6) - (1/10)))

Lq = (1/100) / ((1/6) * (10 - 6)/60))

Lq = (1/100) / ((1/6) * (4/60))

Lq = (1/100) / ((1/6) * (1/15))

Lq = (1/100) / (1/90)

Lq = (1/100) * (90/1)

Lq = 90/100

Lq = 0.9

Therefore, the correct option is B.

Learn more about average number here:https://brainly.com/question/20118982

#SPJ3

what is the derivative and the slop of the tangent line of f(x)=3x+5 at (1,8)

Answers

Step-by-step explanation:

To find the derivative of

3x+5, apply sum rule

[tex] \frac{d}{dx}(3x + 5) = \frac{d}{dx} 3x + \frac{d}{dx} 5[/tex]

The derivative of

[tex] \frac{d}{dx} kx = k[/tex]

And

[tex] \frac{d}{dx} c = 0[/tex]

So we have

[tex] \frac{d}{dx} 3x + 5 = 3[/tex]

So the derivative of the function is 3,

Since linear equations have a constant slope, the slope at any point will be 3.

So the slope of the tangent line is 3.

image Consider the graph of g(x) = x2 – 8x + 12. Identify the y-intercept, the vertex, and the zeros of the function.

Answers

Answer:

Below in bold.

Step-by-step explanation:

g(x) = x^2 – 8x + 12

Convert to vertex form:

g(x) = (x - 4)^2 - 16 + 12

g(x) = (x - 4)^2 - 4.

So the vertex is at (4, -4).

y-intercept (when x = 0) is ((0-4)^2 - 4 = 16 - 4

- that is (0, 12).

Zeros:

(x - 4)^2 - 4 = 0

(x - 4)^2 = 4

x - 4 = +/- 2

x = 2 + 4 = 6 or x = -2 + 4 = 2.

= 2, 6.

n a certain​ country, the true probability of a baby being a girl is 0.467. Among the next four randomly selected births in the​ country, what is the probability that at least one of them is a boy​?

Answers

Answer:

0.9524

Step-by-step explanation:

Since the probability of a baby being a girl is 0.467, then the probability of a baby being a boy is 1 - 0.467 = 0.533

By the Binomial Theorem, the probability of at least one baby out of four being a boy is 1 - (0.467)^4 = 1 - 0.0476 = 0.9524

In this box-and-whisker plot, what is the maximum value of the data.
A: 53 B: 56 C: 60 D: 68

Answers

Answer:

68

this will be your maximum because of where the dot ends

In Exploration 5.4.2 Question 2, what conclusion can you make about the value of the derivative at
the maximum or minimum for a continuous function?

Answers

The value of the derivative at the maximum or minimum for a continuous function must be zero.

What happens with the derivative at the maximum of minimum?

So, remember that the derivative at a given value gives the slope of a tangent line to the curve at that point.

Now, also remember that maximums or minimums are points where the behavior of the curve changes (it stops going up and starts going down or things like that).

If you draw the tangent line to these points, you will see that you end with horizontal lines. And the slope of a horizontal line is zero.

So we conclude that the value of the derivative at the maximum or minimum for a continuous function must be zero.

If you want to learn more about maximums and minimums, you can read:

https://brainly.com/question/24701109

What is the range of possible sizes for side x?

Answers

[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]

The value of third side should be lesser than the the sum of other two sides ~

[tex]\qquad \sf  \dashrightarrow \:x < 2.8 + 2.8[/tex]

[tex]\qquad \sf  \dashrightarrow \:x < 5.6[/tex]

and, value of third side should also be greater than the difference of other two sides ~

[tex]\qquad \sf  \dashrightarrow \: x> 2.8 - 2.8[/tex]

[tex]\qquad \sf  \dashrightarrow \:x > 0[/tex]

Now, combine the two inequalities, we will get ~

[tex]\qquad \sf  \dashrightarrow \:0 < x < 5.6[/tex]

I hope you got the required Answer ~

What is a polygonal curve

Answers

Answer: It is a connected series of line segments such as the image shown below.

Hope this helps!

Find the exact length of side a

select a,b,c or d from the pictures, please help!

Answers

Answer:

D. 2√3

Step-by-step explanation:

The given triangle is right because the side adjacent to 60° angle is half the length of the hypotenuse.

Side a = BC is opposite to ange A, its measure is:

BC/AC = √3BC = AC√3BC = 2√3

Correct choice is D

Answer:

[tex]a=2\sqrt{3}[/tex]

Step-by-step explanation:

Side a is the side opposite angle A.  

Side b is the side opposite angle B.  

Side c is the side opposite angle C.  

We have been given the lengths of 2 sides and the included angle.

Therefore, to find side a use the cosine rule.

Cosine rule

  [tex]a^2=b^2+c^2-2bc \cos A[/tex]

where:

a, b and c are the sidesA is the angle opposite side a

From inspection of the triangle:

side b = 2side c = 4angle A = 60°

Substitute the given values into the formula and solve for a:

[tex]\implies a^2=b^2+c^2-2bc \cos A[/tex]

[tex]\implies a^2=2^2+4^2-2(2)(4) \cos 60^{\circ}[/tex]

[tex]\implies a^2=4+16-16\left(\dfrac{1}{2}\right)[/tex]

[tex]\implies a^2=4+16-8[/tex]

[tex]\implies a^2=12[/tex]

[tex]\implies a=\sqrt{12}[/tex]

[tex]\implies a=\sqrt{4 \cdot 3}[/tex]

[tex]\implies a=\sqrt{4}\sqrt{3}[/tex]

[tex]\implies a=2\sqrt{3}[/tex]

Therefore, the exact length of side a is 2√3.

A manufacturer of headphones determines that the cost per unit for a pair of headphones is $38 and that the fixed cost is $24,400. The selling price for the headphones is $99. Find the break-even point.

please help and show the work thank you.

Answers

Answer:

Solve the following equation

Step-by-step explanation:

x is the amount of headphones

38x = 99x + 24400

Find when both sides are equal, that is the break even

There is a red, orange, yellow, green, blue, and purple card placed in a box. (six total, one of each color). You are asked to randomly choose a card, replace it in the box, and choose another card.

Find P(Yellow, then Blue)

Answers

Answer:

Step-by-step explanation:

If you are doing probability with replacement they will all be 1/6 each time.

total there is 6/6. If you draw a yellow card first it's 1/6 then replace it and draw a blue it is still 1/6. so you take those two probabilities and multiply them (1/6)*(1/6)=1/36 1*1=1 and 6*6=36.

Your answer is 1/36

Which of the following is NOT the same for both sets of data?

MEAN?
MEDIAN?
MODE?
RANGE?

Answers

Answer:

Mode

Step-by-step explanation:

As you can see, the mode on the first data set is 10, the mode on the other is 30.

Find the value of each variable in the parallelogram.

Answers

Answer:

b=10

C=99

D=140

Step-by-step explanation:

because it’s a parallelogram

HELPPPP big brains I need this urgently

Answers

Answer:

9 or 9 months (if you have to add units)

Step-by-step explanation:

Subtract 15 from his savings:

420-15 = $405

This is the amount left he has to  pay the monthly membership

405/45 = 9

9 is the number of months

Answer:

9 months

Step-by-step explanation:

Set up and solve the equation 15 + 45x = 420.  Begin by subtracting 15 from both sides.  After paying 15 dollars for the deposit, He will have $405 dollars left.  Divide both sides of the equation by 45.  When you divide 405 by 45 that will tell you how many months the membership can be paid.

For which values of c does the quadratic equation x^2−2x+c=0 have two roots of one sign?

Answers

The equation x^2−2x+c=0 is an illustration of a quadratic equation

The value of c is 1

How to determine the value of c?

The equation is given as:

x^2 -2x + c = 0

A quadratic equation is represented as:

ax^2 + bx+ c = 0

When the quadratic equation  has two roots of one sign, the following equation is true

b^2 =4ac

So, we have:

(-2)^2 =4 * 1 * c

Evaluate the exponent and the product

4 = 4c

Divide both sides by 4

c= 1

Hence, the value of c is 1

Read more about quadratic equations at:

https://brainly.com/question/1214333

The answer to this problem is:

0<c<1

Which pair of functions are inverses of each other? ​

Answers

Answer:

D

Step-by-step explanation:

f(x) = 10x - 5 → x = 10g(x) - 5 → x + 5 = 10g(x) →

g(x) = (x + 5)/10

Other Questions
Why is the writing of compare-and-contrast essays a valuable way to study? Explain the negative and positive effects of gentrification. A wire 26 cm long is cut into two pieces. The longer pieces is 2 cm longer the the shorter peice.Find the length of the shorter peice of wire _________ cm if temperature were available from several stations in canada near the great lakes do you think 15-degree line would form a closed loop? Help me answer this question about congruent triangles. 50 points available. Find the missing factor._____ x 5 = 3,000A) 6B) 60C) 600D) 6,000 100 POINTS !!! Find the axis of symmetry and the vertex of the graph of y = 6x2 24x + 11. x = 2; (2, 13) x = 4; (4, 11) x = 2; (2, 83) x = 4; (4, 11) Rhys's house had a temperature of 12C. He put the heating on and the temperature rose by 8C. As he was still co Rhys decided to light a fire which increased the temperature by a further 13C. What was the temperature in the hou now? A security event popped up, alerting security of a suspicious user gaining access to, and copying files from, the %systemroot%\ntds\ file path on a server. what is the user trying to do? What role(s) do the lions play in the lion king? 3. What kind of government did Stalin lead? All that glitter page unit 4 page 414 Who made the clash royale theme song?? Knowledge Check Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator. 4.5 ft to 2 ft What is the climate and vegetation like in the temperate woodland? The magnitude of vector a is 5. Find the possible values of , if a=(5,12). Brainliest for correct answer. Look at photo. Given the quadratic function y=(3x2)(x+4), what are the x-intercepts? What structural classification describes this neuron?. Which of the following sentences suggests that Kate is very fond of her doll?A. Kate often played with the doll that she had owned for many years.B. Kate believed that her doll had not changed much over the years.C. Kate kept her doll with the others on the top shelf of her bedroom.D. Kate imagined that her doll was a real person when she played with it. King George had to pay the soldiers. What did he do to pay them?