Please help. Thanks!!! <3
Construct a square using perpendiculars and congruent line segments and angles

I need a pic pls

tysm I will give 5 stars!!

The original cost of the bike is $20

What is percentage ?

A percentage is a figure or ratio stated as a fraction of 100 in mathematics. Although the abbreviations "pct," the percent sign, "%," is frequently used to indicate it. A % is a number without dimensions and without a standard measurement.

In essence, percentages are fractions with a 100 as the denominator. We place the percent symbol (%) next to the number to indicate that the number is a percentage. For instance, you would have received a 75% grade if you answered 75 out of 100 questions correctly on a test (75/100).

A fraction of 100 is represented as a number or ratio known as a percentage. A dimensionless relationship between two numbers can be represented in a variety of ways, such as through ratios, fractions, and decimals.

Let x be the discount

20/100 = x / 25

1/5 = x/25

x = 25/5

x = 5

The discount is 5

The original cost is

$25 - $5

= $20

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Answer: Ask three before me!

Step-by-step explanation: Ask three before me!

The money was spent on a pass and lunch for each student will be $27.66.

An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles. Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

The school is arranging a field trip to the zoo. The school spends 755.16 dollars on passes for 40 students and 2 teachers. The pass for each person will be:

= $755.16 / 42

= $$17.98

The school also spends 387.20 dollars on lunch for just the students. The amount for Howavh students will be:

= $387.20 / 40

= $9.68

The money was spent on a pass and lunch for each student will be:

= $9.68 + $17.98

= $27.66

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Answer:

V>11

Step-by-step explanation:

H1: The treatment affected the patients' memories.The alternative hypothesis, H1, states that the treatment affected the patients' memories.

To test this hypothesis, the researcher needs to compare the test scores to the population mean of 50. The researcher will use a one-tailed t-test with a .01 level of significance. If the calculated t-value is greater than the critical value, then the null hypothesis will be rejected and the alternative hypothesis will be accepted.

To conduct the t-test, the researcher will need to calculate the mean of the patient's test scores, the standard deviation, and the t-value. The mean is calculated by taking the sum of the test scores and dividing by the number of test scores. The standard deviation is calculated by taking the square root of the sum of the squared deviations from the mean divided by the number of test scores minus one. The t-value is calculated by taking the difference between the mean of the patient's test scores and the population mean, divided by the standard deviation of the patient's test scores, multiplied by the square root of the number of test scores. If the calculated t-value is greater than the critical value, then the null hypothesis can be rejected and the alternative hypothesis can be accepted, indicating that the treatment did affect the patient's memories.

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The probability of drawing two yellow marbles if the first one is placed back before the second draw is 1/25.

The formula for the probability;

probability = favourable outcome/total outcome

The bag contains the marbles as;

Thus, probability of drawing 1st yellow marble.

probability(1st yellow) = 2/10 = 1/5

As the ball is placed again in the bag.

probability(2nd yellow) = 2/10 = 1/5

So, probability of drawing two yellow marble = 1/5 x 1/5 = 1/25.

Thus, the probability of drawing two yellow marbles if the first one is placed back before the second draw is 1/25.

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I don't see the picture. Can you send it in the message.

Answer:

97.8263768112

Step-by-step explanation:

Geometric Mean is denoted as 'x'

x = √(110×87)

x = √9570

∴ x = 97.8263768112

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Answer:

(3,0)

Step-by-step explanation:

move it :)

The sum of x and y is 5.

An equation is a statement of two expressions connected by equal sign.

Given that, the system of equations, y=-3x-1 and y = -2/3x + 6

Simplifying the equations,

-3x-1 = -2x/3+6

Multiplying the both sides by -3

9x +3 = 2x-18

7x = -21

x = -3

Put x = -3 in any one of the equations,

y = -3(-3)-1

y = 9-1

y = 8

Hence, the sum is 5

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The equation to the model is c = 0.0255s

What is equation ?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.

A mathematical expression with an equals sign is referred to as an equation. Algebra is widely used in equations. When performing calculations but unsure of the precise amount, algebra is used.

c = ms + b

m = 17 / 680

7.5 = 17 / 680 (300) + b

7.5 = 7.5 + b

b = 0

c = 17 / 680 s

   = 0.0255s

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$2,060.00 is the entire amount accrued from simple interest on a principal of $2,000.00 at a rate of 3% per year for 1 years, including principal and interest.

Ayden deposits $2000 into a savings account with an annual interest rate of 3%.

To calculate simple interest, multiply the daily interest rate by the principle and the number of days between payments. Consumers that make on-time or early monthly loan payments benefit from simple interest.

A = $2,060.00

I = A - P = $60.00

A is equal to P(1 + rt).

First, convert R percent to r a decimal; for example, R/100 is 3%/100, or 0.03 per year.

A = 2000(1 + (0.03 × 1)) = 2060 \sA = $2,060.00

$2,060.00 is the entire amount accrued from simple interest on a principal of $2,000.00 at a rate of 3% per year for 1 years, including principal and interest.

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For case (a), the person can hike up and down the mountain in 4 different ways. For case (b), the person can hike up and down the mountain in 15 different ways. For case (c), the person can hike up and down the mountain in 12 different ways.

In case (a), the person must take the same trail both ways, so there are only 4 different options available, one for each of the 4 trails.

In case (b), the person can take the same trail both ways if they choose, but they are not required to do so. This means that they have 4 different options for the trail they take on the way up, and then 4 different options for the trail they take on the way down. This results in a total of 4 x 4 = 16 different possibilities.

However, one of these possibilities is the case where the person takes the same trail both ways, which has already been counted in case (a), so we need to subtract this possibility to avoid double counting. This results in a total of 16 - 1 = 15 different possibilities.

In case (c), the person does not want to take the same trail both ways, so they have 4 different options for the trail they take on the way up, and then 3 different options for the trail they take on the way down (since they cannot take the same trail they took on the way up). This results in a total of 4 x 3 = 12 different possibilities.

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The statement "cross-tabulation can only be used for two variables; each variable must have well-defined labels " is false

The cross tabulation is defined as the tool that is used in statistics to categorical data. We can also says that  that present the results of the entire group of respondents

The given statement is "cross-tabulation can only be used for two variables; each variable must have well-defined labels "

The cross tabulation method can be used to represent two or more variables. The cross tabulation table has x axis as one variable and y axis as another variables

The cross tabulation can be used for two or more variables

Therefore, the the given statement is false

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The probability that a randomly selected product will be assembled in less than 91.630 minutes or more than 130.35 minutes is 0.0474 or 0.033.

Given,

In a normal random variable

Mean , [tex]\mu[/tex] = 110 minutes

Standard deviation , [tex]\sigma[/tex] = 11 minutes

then

The probability that a randomly selected product will be assembled in less than 91.630 minutes or more than 130.35 minutes will be

a)

To find the Probability that a randomly selected product will be assembled in less than 91.630 minutes, first calculate the z-score at 91.360 minutes

[tex]z-score = \frac{x-\mu}{\sigma}\\\\z-score=\frac{91.63-110}{11}\\\\z-score=\frac{-18.37}{11}=-1.67\\[/tex]

from z-score table , [tex]p(x < -1.67)=0.04746[/tex]

b)

To find the Probability that a randomly selected product will be assembled in more than 130.35 minutes, first calculate the z-score at 130.35 minutes.

[tex]z-score = \frac{130.35-110}{11}\\\\z-score=\frac{20.35}{11}=1.85[/tex]

From z-score table,

[tex]p(x > 1.85)\\\\=1-p(x < 1.85)\\\\=1-0.967\\\\=0.033[/tex]

Thus, the probability for product assembled in more than 130.35 minutes is 0.033

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Answer:

180 ft^3

Step-by-step explanation:

volume of the pyramid = (1/3)(area of base) (height)

v= 1/3×(10×12÷2)×(9)

= 180 ft^3

Answer:

answer on the picture.....

Answer:

100/63

Step-by-step explanation:

6 2/3 ÷4 1/5

20/3÷21/5

20/3×5/21

1 37/63 or 100/63 or 1.587301587

so the answer is one (whole number) thirty seven over sixty three

Answer:

Step-by-step explanation:

6.5

Luka will require 24 cups of water to make lemonades as calculated from the data given.

The quantity of sugar which he use is twice the amount of lemon which he us ,

= 2 x 3 = 6

and ,

as we know the amount of water is 4 times as much as lemon juice

Therefore, amount of water

= 4 * 6

= 24

A quantity in a Maths equation is a number or variable plus any algebraic combination of additional quantities. In an equation like x + 6 = 15, four values are represented.

A quantity can be described as the amount of something or how much of it there is. Quantity can also be used to refer to the size of something (its magnitude), whether in terms of numbers, units of measurement, or just relative size.

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Thus, the angles which have sine of 5/13 are ∠C and ∠R, hence option C and F are correct.

What is trigonometry?

Trigonometry is a field of mathematics that examines correlations between triangle side lengths and angles (from the Ancient Greek words "trigonon" and "metron"). The field was created in the Hellenistic era in the third century BC as a result of the use of geometry in astronomical research.

We know that, in trigonometry, sin Ф = perpendicular/hypotenuse

For triangle ABC,

sin ∠C = AB/BC

⇒ sin ∠C = 5/13

sin ∠B = AC/BC

⇒ sin ∠B = 12/13

For triangle PQR, PQ = 5, QR = 13, PR = 12

sin ∠Q = PR/RQ

⇒ sin ∠Q = 12/13

sin ∠R = PQ/QR

⇒ sin ∠R = 5/13

Thus, the angles which have sine of 5/13 are ∠C and ∠R, hence option C and F are correct.

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Answer:

The tallest player on the team was 78 inches tall

Step-by-step explanation:

The first 5 terms of a sequence are shown are called arithematic sequence.

The series where the common difference between any two next words stays constant is known as an arithmetic sequence. Let's review what a sequence is.

A collection of numbers that follow a pattern is called a sequence.

As an illustration, the numbers 1, 6, 11, 16,... are an arithmetic sequence because they follow a pattern in which the preceding term is multiplied by 5 to produce each subsequent number. There are two formulas for arithmetic sequences.

The equation to determine the nth term in an arithmetic sequence

The formula for calculating the sum of an arithmetic sequence's first n terms

The arithmetic sequence formula can be used to discover any term in the arithmetic sequence.

AP = –3, –2.5, –2, –1.5, –1,

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The solution of the system of equations:

x = 2y+  3

4x - 5y = 9

Is x = 1, y = -1.

Here we have the following system of equations:

x = 2y+  3

4x - 5y = 9

To solve it, we can notice that the variable x is already isolated on the first equation, then we can take it and replace it on the other equation, then we will get:

4*(2y + 3) - 5y = 9

Now we can solve that equation for y:

4*(2y + 3) - 5y = 9

8y + 12 - 5y = 9

8y - 5y = 9 - 12

3y = -3

y = -3/3

y = -1

And the value of x is:

x = 2y + 3

x = 2*(-1) + 3

x = -2 + 3 = 1

So the solution is x = 1 and y = -1.

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The number of possible combinations available as calculated from the given data is 259200.

Coin just has a head and a tail.

The potential configuration is (6! * 6!)/2.

Divide by two because each coin has two faces.

The potential configuration is (6! * 6!)/2.

The potential configuration is (( 720 x 720)/2

The potential configuration is 259200.

259200 different combinations are available.

By choosing some items from a set and creating subsets, permutation and combination are two approaches to represent a group of objects. It outlines the numerous configurations for a particular set of data.

Permutations are the selection of data or objects from a set, whereas combinations are the order in which they are represented. Both ideas are critical to mathematics.

Contrary to permutations, the order of selection is irrelevant when choosing elements from a collection using the combination method. The number of combinations can be counted in simpler situations. Combination is the taking together of n items, k at a time, without repetition.

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The given two consecutive positive integers are 9 and 10.

It is a whole number that can be positive, negative, or zero.

Let consider x and x+1 as two consecutive positive integers.

Given that,

[tex]x^{2} -21=6(x+1)[/tex]

[tex]x^{2} -6x-27=0[/tex]

It can be written in fractional form like,

(x-9)(x+3)=0

so the values of x are 9 and -3.

Here, only positive integers are considered.

Hence 9 and 10 are the two consecutive positive integers.

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Answer:

The value of x is (-5)

Step-by-step explanation:

9x + 2 = 10x + 7

9x - 9x + 2 - 7 = 10x - 9x + 7 - 7

(-5) = x

x = (-5)

Thus, The value of x is (-5)