14. What is the percent decrease on a DVD recorder that is marked down from $400 to $350?

1. 87.5%

2. 20%

3. 12.5%

5. 14.29%​

Answer:

=The opposite angles of a parallelogram are equal

=(3x+4)

=(5x-2)

=-2x=-6

=x=6+2

=x=3=

1st angle=3x+4=13

3rd angle=5x-2=13

=sum of adjacent side of angle is 180°

=Let the adjacent (2nd angle ) be y=

y+13°=180°

=y=180°-13°

=y=167°=

2nd angle=4th angle

=2nd angle=167° 

=4th angle=167°

Step-by-step explanation:

This might be confusing, but I hope it helps <3

The value of x in the trapezoid is 117°.

A trapezoid is a quadrilateral a four-sided polygon with two parallel sides and two non-parallel sides. The parallel sides are most call the bases of the trapezoid, and the non-parallel sides are called the legs.

In a trapezoid, the opposite angles are supplementary. Therefore, we can set up an equation:

x + 63° = 180°

Solving for x, we get:

x = 180° - 63°

x = 117°

Therefore, the value of x in the trapezoid is 117°.

Full question "Find the value of x in the trapezoid below.

X

63°

X = = [?]°"

Read more about trapezoid here

brainly.com/question/26487711

#SPJ1

Answer:

Option A is the correct option.

Step-by-step explanation:

Angle subtended by an arc at the centre is double of the angle subtended by the same arc anywhere in the major segment.

Angle BAC:

\( \frac{1}{2} \times angle \: boc \\ \\ = \frac{1}{2} \times 70 \\ = 35\)

Good luck on your assignment..

The critical value if the hypothesis is to be tested at the 0.05 level of significance is 1.96 . So, option C is the correct answer.

To test the hypothesis that Woof Chow has a market share of 25%, we need to conduct a hypothesis test with the null hypothesis that the true proportion of dog owners who use Woof Chow is 0.25, and the alternative hypothesis that the true proportion is not 0.25.

Since the sample size n is large (n = 100), we can use the normal distribution to perform this test. The critical value for a two-tailed test at the 0.05 level of significance is given by:

z_critical = ±1.96

This value corresponds to the 2.5th and 97.5th percentiles of the standard normal distribution. The critical value is ±1.96 because we want to be 95% confident that the true proportion of dog owners who use Woof Chow is within a certain range, and the 95% confidence interval corresponds to two standard deviations from the mean.

To determine whether or not to reject the null hypothesis, we would calculate a test statistic (z-score) based on the sample proportion, and compare it to the critical value. If the test statistic falls outside the critical value, we would reject the null hypothesis and conclude that Woof Chow does not have a market share of 25%.

To learn more about hypothesis click on,

https://brainly.com/question/15874416

#SPJ4

The height of the trapezoid is 13cm.

A trapezoid is a convex quadrilateral with at least one pair of parallel sides.

Area of a trapezoid =   0.5 x (sum of the lengths of the parallel sides) x height

Height = area / (0.5 x sum of lengths)

Sum of lengths = 23 + 17 = 40 cm

= 260 / (0.5 x 40) = 13 cm

To learn more about trapezoids, please check: https://brainly.com/question/25748893

#SPJ1

Answer:

The name of the solid with 20 faces that are congruent equilateral triangles is icosahedron.

The solid you are referring to is called an icosahedron. An icosahedron is a specific type of convex polyhedron that has 20 faces. In this case, all 20 faces are congruent equilateral triangles. Option d is correct answer.

To understand why this solid is called an icosahedron, let's break down the term. "Icosa-" comes from the Greek word for twenty, while "-hedron" means face. Therefore, an icosahedron is a polyhedron with twenty faces.

Each face of an icosahedron is an equilateral triangle, meaning that all three sides of the triangle are equal in length, and all three angles are equal to 60 degrees. Since all 20 faces are congruent, they have the same side lengths and angles.

The icosahedron has a total of 12 vertices and 30 edges. The vertices are the points where three edges meet, and the edges are the line segments connecting the vertices. The icosahedron has a symmetrical and regular structure, making it one of the five Platonic solids.

An icosahedron is a convex polyhedron with 20 congruent equilateral triangle faces, 12 vertices, and 30 edges.

Option d is correct answer.

For more question icosahedron

https://brainly.com/question/10357380

#SPJ8

The soda left in the bottle is 0.4 liters in a 2-liter bottle.

Let’s understand this with the concept of Ratio.

How does ratio work?

When two objects are related using numbers or amounts, the relationship is known as a ratio.

Initially, we are given that the bottle is 2 liters. From that, Sergio poured ⅘ of the soda.

So, the soda left is the initial quantity- the final quantity

= 2(initial quantity) - ⅘*2(final quantity)

=2 - 1.6= 0.4 liter

So finally, the soda left in the 2-liter bottle is 0.4 liter.

To know more about Ratios, visit: https://brainly.com/question/1706633

#SPJ4

Answer:

_2⁵b⁴*⁵a⁵

Answer=_32b²⁰a⁵

The solution to the equation does not exist

From the question, we have the following parameters that can be used in our computation:

2x - 3 = 0

2x - 3 = 3

Also from the question, we understand that the graph is given as

3 = 0

The above equation is false, and cannot be represented on a graph

This is so because 0 and 3 do not have the same value

Similarly, we have 2x - 3 = 0 and 2x - 3 = 3

By substitution, the equations becomes

0 = 3

Hence, the equation has no solution

Read more about equation at

https://brainly.com/question/13729904

#SPJ1

Complete question

Graph of 3=0

Solve the equation 2x - 3 = 0 and 2x - 3 = 3 graphically

Answer:

I hope this helps you with your algebra

Answer:

Infinity

Step-by-step explanation:

Give brainiest to the other guy/girl they deserve it!!

(Hope dis helps!!!)

To calculate the percentage of books returned based on the number of books returned and the quantity sold, you can divide the number of books returned by the quantity sold and multiply the result by 100 to get a percentage. To insert this formula in cell F7, follow these steps:

To copy the formula to the range F8:F22, click and drag the fill handle (the small square in the bottom-right corner of cell F7) down to cell F22. This will copy the formula to all of the cells in the range, adjusting the cell references as it goes.

The formula to calculate the percentage of books returned based on the number of books returned and the quantity sold is:

=(number of books returned / quantity sold) * 100

To copy the formula from cell F7 to the range F8:F22, follow these steps:

Therefore, This formula is helpful in analyzing sales data for books or any other product, as it allows you to see what percentage of the items sold were returned. This information can be useful for identifying issues with the product or the sales process, and can help businesses make informed decisions about how to improve their products and processes.

Learn more about formula from

https://brainly.com/question/29797709

#SPJ1

Answer:

Okey I answer it clearly

What is StartFraction 8 Over 9, EndFraction divided by two-thirds?

\(1 \frac{1}{3} \)

Step-by-step explanation:

If it's wrong, my apologies

Answer:

I think its B. 2 1/9

Step-by-step explanation:

Answer: Let's use some algebra to solve the problem.

Let x be the number of hamburgers sold on Sunday. Then, the number of cheeseburgers sold is 50 less than x, which we can represent as (x - 50).

The total number of hamburgers and cheeseburgers sold is 450, so we can set up an equation:

x + (x - 50) = 450

Simplifying the left side:

2x - 50 = 450

Adding 50 to both sides:

2x = 500

Dividing by 2:

x = 250

So, 250 hamburgers were sold on Sunday.

To check, we can calculate the number of cheeseburgers sold:

x - 50 = 250 - 50 = 200

And indeed, the total number of hamburgers and cheeseburgers sold is 250 + 200 = 450.

Step-by-step explanation:

Answer:

72hrs

Step-by-step explanation:

I have cancelled both threes because the denominator was the same.

I hope you understand the method I have used.

good day.

Answer:

Step-by-step explanation:

Perimeter is found by adding together all the lengths of the sides. For us, that is x + (2x + 5) + (6x - 17) + (3x + 2). Now we will just combine like terms. We can also drop the parenthesis because they do nothing for us and mean nothing to the problem.

x + 2x + 5 + 6x - 17 + 3x + 2 becomes

12x - 10

Answer:

Step-by-step explanation:"To solve this equation, you can start by distributing the 0.20 and 0.30 terms. Then, you can simplify the equation by combining like terms. After that, you can isolate the variable Z on one side of the equation by adding or subtracting terms from both sides. Finally, you can solve for Z. The solution is Z = 1000. Does that help?"

Answer:

  t ∈ (-4.5, 2.25]

Step-by-step explanation:

You want to solve the compound inequality ...

  1/3t -5 < t -2 ≤ -3t +7

We can divide this into two inequalities.

  1/3t -5 < t -2   ⇒   -3 < 2/3t   ⇒   -4.5 < t

and

  t -2 ≤ -3t +7   ⇒   4t ≤ 9   ⇒   t ≤ 2.25

The solution interval is the intersection of these two solutions:

  -4.5 < t ≤ 2.25

  t ∈ (-4.5, 2.25]

<95141404393>

Answer: The slope is 2/3.

Step-by-step explanation: From (-1,6) to (-7,-3), the x goes up 6, and the y goes down 9. This makes the fraction -6/9. This would reduce to -2/3, but the direction the slop is headed is upwards to the right, meaning it's a positive slope.

Answer:

Lots of people are just answering to get free points now, they're not actually giving answers.

(and sorry if you miss the way it used to be).

Answer:

12.7ft

Step-by-step explanation:

this involves the Pythagoras theorem: base²  x height²  = hypotenuse²

b²  x h²  = hyp²

6²  x h²  = 14²

36 x h²  = 196

h²  = 196 - 36

h²  = 160

h = square root of 160

h = 12.65 - to the nearest tenth

 = 12.7ft

Answer:

12.7

Step-by-step explanation:

got it right with that answer on edge

Answer: yes

Step-by-step explanation:

A leaking faucet in the S&E building lab, dripping at a rate of one drop per second, will result in a water loss of approximately 4,725 liters in one year.

To calculate the amount of water lost in one year, we need to determine the number of drops per year and then convert it to liters. Since the faucet drips at a rate of one drop per second, there are 60 drops in a minute (60 seconds), which totals to 3,600 drops in an hour (60 minutes).

In a day, there would be 86,400 drops (24 hours * 3,600 drops). Considering a year of 365 days, the total number of drops would be approximately 31,536,000 drops (86,400 drops * 365 days). To convert the number of drops to liters, we need to multiply the total number of drops by the volume of each drop.

Given that each drop contains 0.150 milliliters, we convert it to liters by dividing by 1,000, resulting in 0.00015 liters per drop. Multiplying the total number of drops by the volume per drop, we find that the total water loss is approximately 4,725 liters (31,536,000 drops * 0.00015 liters/drop).

Therefore, in one year, the leaking faucet in the S&E building lab would result in a water loss of approximately 4,725 liters.

Learn more about milliliters here:

https://brainly.com/question/20320379

#SPJ11

Answer:

 \(\Large \text{$ \frac{1}{w^2} $}\)

Step-by-step explanation:

Given the exponential expression, \(\displaytext\mathsf{w^3\:\times\:w^{-5}}\), where it involves the multiplication of the same base, w, with varying powers.  

Using the Product Rule of Exponents, where it states that, \(\displaystyle\mathsf{a^{m}\:\times\:a^{n}\:=\:a^{(m\:+\:n)}}\).

Hence, we simply need to add the exponents:  

\(\displaytext\mathsf{w^3\:\times\:w^{-5}\:=\:w\:^{[3\:+\:(-5)]}\:=\:w^{-2}}\)

Next, apply the Negative Exponent Rule, where it states that: \(\displaystyle\mathsf{a^{-n}\:=\:\frac{1}{a^n}}\).

Transforming the negative exponent of  \(\displaytext\mathsf{w^{-2}}\)  becomes a positive exponent by using the Negative Exponent Rule.

  \(\displaytext\mathsf{w^{-2}\:=\:\frac{1}{w^2}}\)

Dhamby, this is the solution:

The probability that Jack and Jill will end up in the same class is 19/59.

The principles of probability and counting are fundamental concepts in probability theory and combinatorics. They are used to solve problems that involve uncertain events and counting arrangements of objects, respectively.

The principles of probability include:

Sample space: The set of all possible outcomes of a random experiment.

Event: A subset of the sample space.

Probability: A measure of the likelihood of an event, expressed as a number between 0 and 1.

Here we have

A group of 60 students is randomly split into 3 classes of equal size.

All partitions are equally likely. jack and jill are two students belonging to that group

Let's assume that Jack is assigned to a class, say the first class.

There are 20 students in that class, and the remaining 40 students are split evenly between the second and third classes.

Since all partitions are equally likely, each of the 59 remaining students has an equal chance of being assigned to any of the two remaining classes.

Now, we want to know the probability that Jill is assigned to the same class as Jack. There are 19 other students in the first class besides Jack, so there are 19 possible students in that class that Jill can be assigned to.

Out of the remaining 59 students, there are 40 in the other two classes, so Jill has 40 possible students she can be assigned to if she is not in Jack's class.

Hence,

The probability that Jill is assigned to the same class as Jack

= 19/59

Therefore,

The probability that Jack and Jill will end up in the same class is 19/59.

Learn more about Probability at

https://brainly.com/question/20893068

#SPJ4