WHICH ONE IS IT ?????!!!!!

a²+b²=x²

4²+3²= x²

16+9= x²

25= x²

V25= x

5= x

Answer:

y = -2x + 5

Step-by-step explanation:

y-(-1) = -2(x-3)

y+1 = -2x + 6

y = -2x + 6 - 1

y = -2x + 5

Answer:

A+B=90'(being complementary angle)

30'+B=90'

B'=90'-30'

B'=60'

Thank you

Answer:

Answer=50

Step-by-step explanation:

hope the picture is good enough for an explanation

Answer:

B

Step-by-step explanation:

Make 4 \(\frac{2}{5}\) an improper fraction. To do that multiply the denominator, 5 by 4, which gets you 20. Then add the numerator, 2, to get 22. put the original denominator back into the fraction, and you get \(\frac{22}{5}\) . If you divide that by \(\frac{2}{5}\) , you would get 11 because you divide the numerator and the denominators cancel each other out since they are both the same number, and 22 ÷ 2 = 11.

Answer:

17

Step-by-step explanation:

204/12

= 17

Answer:

17 pounds

Step-by-step explanation:

1/12 = x/204

204/12 = 17

The probability she pulls out a purple piece of candy would be 0.22.

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is Sam's fathers collection.

We can write the equations for upstream and downstream as -

x - y = 7/2

x + y = 21/10

Solving the equations graphically -

{x} = 2.8

{y} = 0.7
In still water, the speed would be -

S = 3 - 0.7

S = 2.3 Km/h

Distance peddled upstream -

D = 2.8 x 3.5 = 9.8 Km

Therefore, the speed in still water would be 2.3 Km/h and the distance peddled upstream would be 9.8 Km.

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Answer:

C. C=9/5F+32

Step-by-step explanation:

divided by 5 then multiply by 9 then add 32

The intersection of sets M and F contains the elements "c" and "d".

To find the intersection of sets M and F, we need to identify the elements that are common to both sets.

M = {a, b, c, d}

F = {c, d, e, f}

The intersection of M

and F is denoted by M ∩ F, which represents the set containing elements that are present in both M and F.

Looking at the elements in M and F, we can see that the common elements between the two sets are "c" and "d".

Therefore, the intersection of M and F can be expressed as:

M ∩ F = {c, d}

So, the intersection of sets M and F contains the elements "c" and "d".

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The number of sides of Alexandra's regular polygon is 12.

The number of sides of Maris's regular polygon is 15.

What is a regulars polygon?

A regular polygon is denoted a area. The area bounded by equal length of arms. The angel between any two consecutive arms will same any other pair of consecutive arms.

The number of line of symmetry of a polygon is the same is the number of arm or sides of that polygon.

Thus the number of sides of a polygon that has 12 lines of symmetry is 12.

The angle of rotational symmetry of a polygon is 360°/n, where n is the number of arms.

Therefore,

Angle of rotational symmetry = 360°/n

Putting Angle of rotational symmetry = 24°:

24° = 360°/n

Multiply both sides by n

24n = 360

Divide both sides by 24:

n = 360/24

n = 15

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Answer:

Step-by-step explanation:

(2x – 3)(5x + 6)

10x2 + 12x - 15x - 18

10x2 - 3x - 18

The product of the given polynomials is 10x² - 3x - 18

A polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.

The given polynomials are:

(2x – 3)(5x + 6)

By multiplying the two polynomials, we get

10x² + 12x - 15x - 18

10x²- 3x - 18

Hence, 10x²- 3x - 18 is the product of the given polynomials.

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We can conclude that with 95 percent confidence, the sample means will fall within the interval of approximately (0.9534, 0.9566).

To determine the interval within which 95 percent of the sample means will fall, we need to calculate the margin of error using the standard deviation and the desired level of confidence.

The formula to calculate the margin of error is given by:

Margin of Error = Z * (Standard Deviation / √n)

Where:

Z is the critical value corresponding to the desired level of confidence

Standard Deviation is the standard deviation of the population

n is the sample size

Since the sample size is 41 and we want to find the interval at a 95 percent confidence level, we need to find the critical value corresponding to a 95 percent confidence level.

The critical value can be found using a standard normal distribution table or a calculator. For a 95 percent confidence level, the critical value is approximately 1.96.

Now we can calculate the margin of error:

Margin of Error = 1.96 * (0.0050 / √41)

Calculating this, we find:

Margin of Error ≈ 0.001624

To find the interval within which 95 percent of the sample means will fall, we need to subtract and add the margin of error to the true mean:

Interval = True Mean ± Margin of Error

Interval = 0.9550 ± 0.001624

Calculating this, we find:

Interval ≈ (0.9534, 0.9566)

Therefore, we can conclude that with 95 percent confidence, the sample means will fall within the interval of approximately (0.9534, 0.9566).

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Answer:

3z(5z-3)

Step-by-step explanation:

first you choose the common items which in this case was 3z the you divide 15 by 3 and 9 by 3

Answer and Step-by-step explanation:

Solution:

Given:

V = 2π cm3

We know that:

2π = πr2h

2π / πr2 = h

Which gives: h = 2 / r2

Minimize surface area = 2πrh + 2πr2

S = 2πrh + 2πr2

Put h = 2/ r2 in surface area, we get:

S = 2πr (2/ r2 ) + 2πr2

S = 4 π / r + 2πr2

Therefore, s(r) = 4 π / r + 2πr2

Differentiate concerning r, we have

S’(r) = -4π / r2 + 4πr

Again differentiate concerning r, we have:

S”(r) = 2 x 4 π/ r3 + 4π

For s’(r) = 0

0 = -4π / r2 + 4πr

-4π + 4πr3 = 0

r3 = 1

r = 1 cm

and s”(1) > 0 at r = 1 is point of minima.

So h = 2 π / π x1 x1

  = 2cm

Therefore minimum surface area the can should have a radius of 1cm and height of 2cm.

Answer:

$54

Step-by-step explanation:

Convert 20% into decimal which is .20

$45x.20= $9

so 9 dollars was the tip. So you add the bill to the tip

$45+$9=$54

Answer:

Step-by-step explanation:

60 m in 1 hour
1 hour ----- 60 m

60 mins ----- 60 m

1 min -----  1 m

2mins ----- 2 m

Answer:

2.700 × 10-7

Step-by-step explanation:

Answer:  2.7*10^-4

step by step explanation:

1. Make the number a new number between 1 and 10

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Move the decimal point to make 0.00027 a new number between 1 and 10. Because our original number is less than one, we move the decimal point to the right. Drop any zeroes in front of the number. Keep track of how many times we move the decimal point.

0.00027 -> 2.7

Our new number is 2.7. We moved the decimal point 4 times.

2. Define the power of 10

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Because our original number was less than one, the exponent defining the power of 10 is negative. Remember, we moved the decimal point 4 times, so the exponent is negative 4

10^(-4)

3. Final result

2.7*10^(-4)

Answer:

$413

Step-by-step explanation:

 548

- 135

413

Answer:

413.00

Step-by-step explanation:

Subtract.

548.00 minus 135.00 is 413.00.

That is the answer.

PEMDAS is the rule that can be used to simplify or evaluate complicated numerical expressions with more than one binary operation.

The rule or order that we use to simplify expressions in math is called BODMAS rule.

GEMDAS is the rule that can be used to simplify or evaluate complicated numerical expressions with more than one binary operation.

SO, These 3 show almost thing, but they are used in DIFFERENT areas.

Look at the pictures below to get an understanding of what each letter means.

Very simply way to remember BODMAS rule!

B ----> Brackets

O ----> Of (orders :Powers and radicals)

D ----> Division

M ----> Multiplication

A ----> Addition

S ----> Subtraction

Important Notes :

1. In a particular simplification, if you have both multiplication and division, do the operations one by one in the order from left to right.

2. Division does not always come before multiplication. We have to do one by one in the order from left to right.

3. In a particular simplification, if you have both addition and subtraction, do the operations one by one in the order from left to right.

Very simply way to remember PEMDAS rule!

P ----> Parentheses

E ----> Exponent

M ----> Multiply

D ----> Divide

A ----> Add

S ----> Subtract

Important Notes :

1. In a particular simplification, if you have both multiplication and division, do the operations one by one in the order from left to right.

2. Division does not always come before multiplication. We have to do one by one in the order from left to right.

3. In a particular simplification, if you have both addition and subtraction, do the operations one by one in the order from left to right.

Very simply way to remember  GEMDAS rule :

G ---> Grouping (Parentheses)

E ----> Exponent

M ----> Multiply

D ----> Divide

A ----> Add

S ----> Subtract

Important Notes :

1. In a particular simplification, if you have both multiplication and division, do the operations one by one in the order from left to right.

2. Division does not always come before multiplication. We have to do one by one in the order from left to right.

3. In a particular simplification, if you have both addition and subtraction, do the operations one by one in the order from left to right.

REMEMBER TO LOOK AT IMAGES ALSO.

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Answered by: ms115

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Answers and Step-by-step explanations:

All of these systems (PEMDAS, GEMDAS, and BODMAS) are all formulas used to solve algebraic expressions and equations, also known as the "order of operations." Each of these have similar, yet different meanings. Some contain the same and different steps than each other.

PEMDAS stands for parenthesis, exponents, multiplication, division, addition, and subtraction.

GEMDAS stands for grouping (such as parenthesis), exponents, multiplication, division, addition, and subtraction.

BODMAS stands for brackets (similar to parenthesis) orders (exponents and roots), division, multiplication, addition, and subtraction.

Each of these formulas are similar to the other formulas, because they all contain some of the same steps: multiplication, division, addition, and subtraction. Also, each of these formulas share a common trait to start with: the same "grouping" such as the parenthesis and brackets. Each of these actually contain the same second step as well. Think about it: for PEMDAS and GEMDAS it is exponents, and the same is for BODMAS. Not only that, but all of these formulas are used to solve algebraic equations and expressions. The only difference is, is that in BODMAS the division and multiplication are switched, and each of these steps start with different letters.

__________________________________

I hope that this helps.

Answer:

Step-by-step explanation:

\(2x - 5 = 7 \\ 2x = 12 \\ x = 6\)

Hey there!

“Solve 2x – 5 = 7”

FIRST: ADD both SIDES by 5

2x – 5 + 5 = 7 + 5

CANCEL out: –5 + 5 because it gives you 0

KEEP: 7 + 5 because it helps us solve for x

7 + 5 = 12

NEW EQUATION: 2x = 12

SECOND: DIVIDE both sides by 2

2x / 2 = 12 / 2

CANCEL out 2 / 2 because that gives you 1

KEEP: 12 / 2 because it gives you the value of x

NEW EQUATION; x = 12 / 2

SOLVE ABOVE and you have your answer

12 / 2 = 6

Therefore, x = 6 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

Answer:

20.41

20=nearest whole number

20.4=nearest tenth

20.41=nearest hundredth

hope this helps

have a good day :)

Step-by-step explanation:

Answer: 20.40

Step-by-step explanation:

20.41

       | (Hundreth place)

=20.40 because 1 is smaller than 5 thus you round down.

Answer:?

Step-by-step explanation:

?

Originality is the quality of being unique, new, and innovative. It requires creativity, imagination, inspiration, and nonobviousness. Special or interesting aspects may be present, but they are not sufficient to define originality.

Originality refers to the quality of being unique, new, and innovative. It involves creating something that has not been seen or experienced before. The best description of originality is that it is having a low probability and being unique.

An original idea, product, or work of art is something that has not been copied or imitated from others. It represents a new perspective or approach that can offer a fresh insight into a problem or challenge. Originality requires a high level of creativity, imagination, and inspiration, as well as a willingness to take risks and explore new possibilities.

Nonobviousness is also an important factor in originality. It means that the idea or invention is not something that would be obvious to someone skilled in the same field or industry. In other words, an original idea should not be something that could be easily predicted or anticipated.

Special or interesting are also characteristics of originality, but they are not sufficient to define it. An idea or product can be special or interesting without being truly original. For example, a new flavor of ice cream may be interesting, but it may not be original if it has already been created by someone else.

Convergent thinking, on the other hand, involves finding a single solution to a problem. It is the opposite of divergent thinking, which involves generating multiple ideas and possibilities. Convergent thinking is important for finding effective solutions to problems, but it is not the same as originality.

In conclusion, originality is the quality of being unique, new, and innovative. It requires creativity, imagination, inspiration, and nonobviousness. Special or interesting aspects may be present, but they are not sufficient to define originality.

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Answer: The total distance covered by the car is 331 9/16 km.

Step-by-step explanation:

We know that, speed= distance/time taken

Therefore, distance = speed x time taken

= 132 5/8 x 2 1/2

= 5/2 x 1061/8

= 5305/16

= 331 9/16 km

Therefore, total distance is 331 9/16 km.

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Answer:

vertical angles

Step-by-step explanation:

vertical angles are opposite angles that share the same vertex. They are formed by a pair of intersecting lines. Their angle measures are equal.

Answer:

Step-by-step explanation:

The volume of this pyramid in cubic inches is 16.

Given that,

The base and height is 8 and 6.

Based on the above information, the calculation is as follows:

The volume is

= 16

These values represent the range within which the middle 30% of indoor cats' age of death lies.

a. The distribution of X is a normal distribution, denoted as X ~ N(μ, σ), where μ represents the mean age at death of indoor cats and σ represents the standard deviation.

b. To find the probability that an indoor cat dies when it is between 11 and 14.6 years old, we need to calculate the area under the normal distribution curve between these two values.

First, we need to standardize the values by subtracting the mean and dividing by the standard deviation. Let's call the standardized values z1 and z2.

z1 = (11 - μ) / σ
z2 = (14.6 - μ) / σ

Using the z-table or a statistical calculator, we can find the corresponding probabilities for these standardized values. The difference between these two probabilities will give us the probability of the cat's age at death being between 11 and 14.6 years old.

Let's say the probability for z1 is P1 and the probability for z2 is P2. Then, the probability we're looking for is P2 - P1.

c. The middle 30% of indoor cats' age of death lies between the lower and upper percentiles. To find these percentiles, we need to locate the z-scores that correspond to the lower and upper percentages.

First, let's find the z-scores for the lower and upper percentiles. The lower percentile will be (1 - 0.30) / 2 = 0.35, and the upper percentile will be 1 - (1 - 0.30) / 2 = 0.65.

Using the z-table or a statistical calculator, we can find the z-scores corresponding to these percentiles. Let's call the lower z-score zL and the upper z-score zU.

zL corresponds to the 0.35 percentile, and zU corresponds to the 0.65 percentile.

Now, we can find the values for the lower and upper percentiles using the z-scores, mean, and standard deviation.

Lower percentile = μ + zL * σ
Upper percentile = μ + zU * σ

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