HELP TIMED 20 MIN LEFT BRAIBLIST

Answer: Choice D

\((-\infty, -2) \cup [4, \infty)\)

=====================================================

Explanation:

The left portion is the interval (-∞, -2)

This is a shorthand way of saying \(-\infty < x < -2\)

The curved parenthesis says "do not include this endpoint as part of the solution set". Note the open hole at x = -2 in the diagram.

In contrast, the value x = 4 is included (due to the filled in circle), so we use a square bracket for this endpoint. Therefore, the right-hand portion is represented by [4, ∞) which translates to \(4 \le x < \infty\)

Negative and positive infinity will always use a parenthesis, and never a square bracket. This is because we can only approach infinity but never reach it, so we cannot include it as an endpoint.

All of this builds up to the full interval notation to be \((-\infty, -2) \cup [4, \infty)\)

The only square bracket is near the 4; everything else is a curved parenthesis. This is why choice D is the final answer.

Rested numbers in group is 33 out of 76.

A percentage is expressed as a number or ratio that can be expressed as fraction of 100. It is denoted by % symbol.

Total numbers in a group = 76.

44% of them were rested.

That is 44% of 76.

To find how many are rested we have to find the value in numbers.

Convert 44% of 76 to numbers.

For this, it can be written as

\(\frac{44}{100} *76\) = 33.44

Therefore 44% of 76  ≅ 33 numbers.(approximately)

Hence, rested numbers in group is 33.

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Answer:

234

Step-by-step explanation:

234 because you have to do 1950 - 88% which will get you 234$

Answer:

1. m=5

2. 2(8x+11)

3.m=7

Step-by-step explanation:

Answer:

Answer is 48

Step-by-step explanation:

6x8 = 48

Hope it helps!

Answer:

area=b•h

6 units • 8 units = 48 units²

Step-by-step explanation:

If TR=SR=ST

SO,

all angles are equal

one angle =180/3=60°

but,here,

In angle S =60°

7x+4=60

7x=60-4

7x=56

x=56/7

x=8°

Answer:

The RST\(\huge{\triangle}\)  is same in all side,

it is equilateral triangle.

so each angel =180/3=60°

But,

According to the question,

The given information tells us that Terry's wins-to-races ratio is 2:3, but we cannot determine the exact number of races he has won without additional information about the total number of races he has participated in.

If the ratio of the number of times Terry has won to the number of races he has swum in is 2:3, we can set up a proportion to determine the number of races he has won.

Let's denote the number of times Terry has won as x, and the total number of races he has swum in as y. According to the given ratio, we have:

x/y = 2/3

To find the value of x, we need to solve for x when y is known. Since y represents the total number of races, we don't have that information in the given problem. Therefore, we cannot determine the exact number of races Terry has won without knowing the total number of races he has participated in.

The ratio tells us the relationship between the number of wins and the total number of races, but without knowing the denominator (total races), we cannot find a specific value for the numerator (number of wins). We can only determine the ratio between the two quantities.

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The height of the sand in the display container is 12 inches when the display container is right triangular prism.

What is right triangular prism ?

A right triangular prism is a three-dimensional geometric shape with two parallel triangular bases and three rectangular faces. The rectangular faces connect the corresponding vertices of the triangular bases.

To find the height of the sand in the display container, we need to use the fact that the volume of sand in the storage container is equal to the volume of sand in the display container.

The storage container has a length, width, and height of 6 inch, 6 inch, and 6inche, respectively. Then, the volume of the storage container is:

\(V_{storage} = L * W * H = 6 * 6 * 6 = 216 inch^3\)

Similarly, let's assume that the display container has a base of length 4 inch and height 9 inches and height of sand be H.

Then, the volume of the display container is:

\(V_{display} = (1/2) * b * h * H = (1/2) * 4 * 9 * H = 18H\)

where (1/2) is the area of the triangle base of the display container.

Since the volumes of sand in both containers are equal, we can set these expressions equal to each other and solve for h:

216 = 18H

H = 12 inches

Therefore, the height of the sand in the display container is 12 inches.

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The area of the square pyramid is the amount of space on it

The total surface area of each cut surface is 33.28 square inches

The given parameters are:

Base (b) = 4 cm

Height (h) = 6 cm

Start by calculating the slant height (l) using:

l = √((4/2)^2 + 6^2)

l = 6.32

The lateral surface area is calculated using:

L = 2bl

So, we have:

L = 2 * 4 * 6.32

Evaluate the product

L = 50.56

The total surface area is calculated using:

T = L + b^2

So, we have:

T = 50.56 + 4^2

Evaluate

T = 66.56

Divide the total surface area by 2

T/2 = 33.28

Hence, the total surface area of each cut surface is 33.28 square inches

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Answer:

66.69

Step-by-step explanation:

You start off with -3.9 x -5.7 which gives you a positive, and that positive is 22.23, then you multiply that number by 3, and you get 66.69.

Answer:

2121.8

Step-by-step explanation:

2000(1+0.03/1)^2

A= P(1+ r/n) ^nt

A = final amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

I don't remember what I learned. So, this might be wrong because I googled the formula :)

Answer:

C. $22

Step-by-step explanation:

We are given a graph showing the relation between the distance travelled in miles by taxi and the taxi fare.

To find an estimate of how much her taxi fare would be if she travelled 8.5 miles by taxi, simply look 8.5 on the x-axis, then trace it upwards till it meets the line. The point where it meets the line would be the corresponding y-value of x = 8.5.

The point would be (8.5, 22). This means, if the woman travels 8.5 miles, her taxi charges would be approximately $22.

Probability of red = \(\frac{4}{10}\) , blue = \(\frac{5}{10}\) , green = \(\frac{1}{10}\).

Meaning of probability :

Probability is calculation of how likely some event will happen. Whenever we are not sure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are going to happen.

The analysis of events governed by probability is called statistics.

According to the given information :

Red section = \(\frac{2}{5}\)

multiply numerator and denominator by \(2\) we get

Red section = \(\frac{4}{10}\)

 Blue section = \(\frac{1}{2}\)

 multiply numerator and denominator by \(5\) we get

 Blue section = \(\frac{5}{10}\)

 Green section = \(1\)- Red section - Blue section

 Green section =\(1-\frac{4}{10} -\frac{5}{10}\)

  Green section = \(\frac{1}{10}\)

Therefore Probability of red = \(\frac{4}{10}\) , blue = \(\frac{5}{10}\) , green = \(\frac{1}{10}\).

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Answer:

231

Step-by-step explanation:

From the pie chart we see that the story artists constitute 20% of the total employee strength of 1540 employees and the interns constitute only 5% of that number

In actual values

Number of story artists = 1540 x 20% = 1540 x 20/100 = 308

Number of interns = 1540 x 5% = 1540 x 5/100 = 77

Difference = 308 - 77 = 231

Answer:

andrew

Step-by-step explanation:

The value of the side QR labelled x is equal to 2√3 using the trigonometric ratio of tan 45° for the right triangle QRT.

The trigonometric ratios is concerned with the relationship of an angle of a right-angled triangle to ratios of two side lengths.

The basic trigonometric ratios includes;

sine, cosine and tangent.

using the trigonometric ratio of tan 45°

{recall that tan 45° = 1}

tan 45° = QR/RT {opposite/adjacent}

tan 45° = x/2√3

x = tan 45 × 2√3 {cross multiplication}

x = 1 × 2√3

x = 2√3

Therefore, the value of the side QR labelled x is equal to 2√3 using the trigonometric ratio of tan 45° for the right triangle QRT.

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Answer:

-----------------------------------

Use triangle inequality theorem:

Given sides:

Let the smallest side be 4 cm, then:

Let the largest side be x, then:

The third side is between 13 cm and 21 cm.

Given sides:

Let the smallest side be 9 yd, then:

Let the largest side be x, then:

The third side is between 23 cm and 41 cm

Given sides:

Let the smallest side be 11 m, then:

Let the largest side be x, then:

The third side is between 16 m and 38 m.

Correct choices for possible third side lengths are:

(note it is m not feet or the initial lengths to be in feet)

Answer:

7.  (13, 21)

9.  (23, 41)

11.  17 m, 35 m, 22 m

Step-by-step explanation:

The sum of any two sides of a triangle is greater than the length of the third side.

Let x be the length of the unknown side of the triangle.

Given two sides of a triangle are 4 cm and 17 cm, then:

(a) The sum of the two given sides is greater than the third side:

\(\implies 4+17 > x\)

\(\implies 21 > x\)

(a) The longest side is 17 cm:

\(\implies 4 + x > 17\)

\(\implies x > 13\)

Therefore, the range of possible lengths for the third side is:

Let x be the length of the unknown side of the triangle.

Given two sides of a triangle are 9 yd and 32 yd, then:

(a) The sum of the two given sides is greater than the third side:

\(\implies 9+32 > x\)

\(\implies 41 > x\)

(a) The longest side is 32 yd:

\(\implies 9 + x > 32\)

\(\implies x > 23\)

Therefore, the range of possible lengths for the third side is:

Let x be the length of the unknown side of the triangle.

Given two sides of a triangle are 27 m and 11 m, then:

(a) The sum of the two given sides is greater than the third side:

\(\implies 11+27 > x\)

\(\implies 38 > x\)

(a) The longest side is 27 m:

\(\implies 11 + x > 27\)

\(\implies x > 16\)

Therefore, the range of possible lengths for the third side is:

Note:  There must be an error in the question, since the answer options are in feet rather than in meters.  As there is approximately 3.3 ft to 1 meter, if we convert the range to feet, the given answer options are out of range by some margin.

Therefore, assuming the unit of measure of the answer options is supposed to be in meters, the possible lengths for the third side of the triangle are:

Answer:

83 kilometres per hour =

51.574 miles per hour

The total number of feathers lost in 14 days if you lose 30 feathers every hour is 10,080 feathers.

Feathers lost every hour = 30 feathers

How many feathers is lost in 14 days?

1 day = 24 hours

14 days = 24 × 14

= 336 hours

Total number of feathers lost in 14 days = Feathers lost every hour × number of hours in 14 days

= 30 × 336

= 10,080 feathers

Therefore, the total number of feathers lost in 14 days is 10,080 feathers

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Answer: $30

Step-by-step explanation:

if the original price for the swimsuit is $35 and is reduced $5 each week for 6 weeks, it is now $5. It is reduced by $30 during this time.

Answer:

Can you answer mine? I willl answer yours

Step-by-step explanation:

Answer:

u need a chart image

Step-by-step explanation:

Answer:

The mean of the sample distribution of the sample mean is the same as the population mean, which is 40 dollars. The standard deviation of the sample distribution of the sample mean (also called the standard error) is given by:

standard error = standard deviation / sqrt(sample size) = 8 / sqrt(49) = 8 / 7

To find the probability that the sample mean would be less than 37.4 dollars, we need to standardize the sample mean using the standard error and then look up the probability from a standard normal distribution table. The z-score for a sample mean of 37.4 dollars is:

z = (37.4 - 40) / (8 / 7) = -1.225

Looking up this z-score in a standard normal distribution table, we find that the probability of getting a sample mean less than 37.4 dollars is 0.1103 (rounded to four decimal places). Therefore, the probability that the sample mean would be less than 37.4 dollars is 0.1103.

give thanks, your welcome <3

Step-by-step explanation:

The balance for each value of n is calculated by using the formula A = P(1 + r/n) ^nt. The rounded balance values are shown in the last column of the table above.

To complete the table and find the balance A if $3100 is invested at an annual percentage rate of 4% for 10 years and compounded n times a year.

The formula for calculating compound interest is as follows:

A = P(1 + r/n) ^nt,

where P represents the principal investment amount, r is the interest rate, n is the number of times the interest is compounded, t represents the time in years, and A represents the total amount, which includes the principal amount and the interest earned.

The table is given below:
\(\begin{array}{|c|c|c|} \hline \text{n} &

\text{A = P(1 + r/n) }^{nt} &

\text{Balance (rounded to nearest cent)} \\ \hline \text{1} &

\text{3100(1 + 0.04/1)}^{1*10} &

\text{\$4788.03} \\ \hline \text{2} &

\text{3100(1 + 0.04/2)}^{2*10} &

\text{\$4798.76} \\ \hline \text{4} &

\text{3100(1 + 0.04/4)}^{4*10} &

\text{\$4817.46} \\ \hline \text{12} &

\text{3100(1 + 0.04/12)}^{12*10} &

\text{\$4861.94} \\ \hline \end{array}\)

The balance is obtained by substituting the values of P, r, n, and t into the compound interest formula.

In this case, the investment is $3100, the annual interest rate is 4%, the investment is for 10 years, and n is the number of times the interest is compounded.

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Answer:

8×2+8×g

Step-by-step explanation:

Answer:

nu stiu imi pare foarte rau scuze

Answer:

y=-(1)/(7)x+8

Step-by-step explanation:

Answer:

  -33.3%

Step-by-step explanation:

The percentage loss is the same for 2 crates as for 1 crate.

  % loss = (loss/cost) · 100%

  % loss = (N100 -N150)/(N150) · 100% = -1/3 · 100% ≈ -33.3%

The percentage loss is 33.3%.

_____

Additional comment

In the above, the minus sign indicates a percentage change that is a loss. If the sign were positive, it would indicate a percentage profit.

The interval notation that expresses the set of real numbers x that satisfies the given inequality is -2 < x <5.

It is an expression mathematical that represents a non-equal relationship between a number or another algebraic expression. Therefore, it is common the use following symbols: ≤ (less than or equal to), ≥ (greater than or equal to), < (less than), and > (greater than).

The solutions for inequalities can be given by: a graph in a number line or numbers.

The question gives the inequality (x+2)(x-5) < 0. And, it asks for the solution using the interval notation .

Therefore, you should follow the next steps.

Firstly, you should analyze each term of the inequality:

(x+2) < 0

x +2 <0

x< -2 (1)

(x-5) < 0

x< 5 (2)

Finally, from results (1) and (2), you should identify the interval. See: -2 < x <5.

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Answer:

the answer is false

Step-by-step explanation:

FALSE. A person who yells at an official is not showing a competitive spirit.

A competitive spirit shows the following attributes:

A person yelling at an official is not a way of communicating respect. Therefore, it is FALSE to say it is a display of competitive spirit.

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