A student incorrectly simplifies an expression. The expression and work is shown below.

-(-6)(-3) - 2/3 (22 - 7)
3/5

Step 1: -(-6) (-3) - 2/3 (15)
3/5


Step 2: 18 - 2/3 (15)
3/5


Step 3: 18 - 10
3/5

Step 4: 8_3_5

Answer they got: 4 4/5



Idetnfiy which step is incorrect.


.
PLSSS HELP MEEEEEE​

Given set :

154,109,137,115,152,140,154,178,80,103,126,126,137,165,165,129,200,148.

Rewrite the given data set from least to highest values.



80, 103, 109, 115, 126, 126, 129, 137, 137, 140, 148, 152, 154, 154, 165, 165, 178, 200.

Recall that a data point is an outlier if it is over 1.5 times the IQR below the first quartile or 1.5 times the IQR above the third quartile.

We know that

The upper half of the data set is

{137, 140, 148, 152, 154, 154, 165, 165, 178, 200}

The number of data in the set is even.

There are two middle terms in this upper half of the given set. That are 154 and 154.

The lower half of the data set is

{80, 103, 109, 115, 126, 126, 129, 137, 137, 140}

The number of data in the set is even.

There are two middle terms in this lower half of the given set. Which are 126 and 126.

Substitute known values in the IQR formula.

We get IQR=28.

Answer:

4.58 gallons

Step-by-step explanation:

13$ in 2000 = 8 1/3 gallons

13$ in 2010 = 4.577 gallons

Given:

• Diameter of my ball = 85 cm

• Diameter of my brother's ball = 65 cm

Let's find the difference between the volume of the both balls and also let's find the difference between the surface area of both balls.

A ball has the shape of a sphere.

Therefore, we have the following formulas:

• Volume of a sphere formula:

• Surface area of a sphere formula:

Where d is the diameter.

• Now, to find the difference between the volume of both balls, we have:

The volume of my ball is 321555 cubic cm.

Volume of my brother's ball is 143793 cubic cm.

Therefore, to find the difference between the volume of both balls, we have:

V = V1 - V2 = 321555 - 143793 = 177762 cm³ = 177800 cm³

The difference between the volume of both balls is 177800 cm³

• Now for the surface area, we have:

The surface area of my ball is 22698 cm²

For surface area of my brother's ball:

The surface area of my brother's ball is 13273 cm².

Difference of surface areas:

A = A1 - A2 = 22698 - 13273 = 9425 cm² = 9400 cm²

Therefore, the difference between the surface area of both balls is 940O cm².

ANSWER:

• Difference between volume of both balls= 177800 cm³

• Difference between the surface area of both balls = 9400 cm²

The given group of equations represents a system of non-linear      equations.

A mathematical equation must take the form y = m x +b in order to be classified as a linear function (in which m is the slope and b is the y-intercept). This form cannot be satisfied by a nonlinear function.

Only first degree variables and terms that contain the products of variables are present in a linear equation.

However, in the case of nonlinear equations, either the equation comprises a product of variables or at least one of the variables is not of the first degree.

If the graph of an equation is a straight line, the equation is linear. Otherwise, if the power of x is more than one, then it is nonlinear.

The given equations has the degree more than 1 and their graph is also not a straight line.

Hence, the given group of equations represents a system of non-linear      equations.

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Answers:

a) 32500

b) 0.00604

c)  2.4 * 10^6

d) 1.47 * 10^(-3)

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

Explanation:

The exponent over the 10 tells us how many spaces to move right or left.  If the exponent is positive, we move right. If negative, we move left. Think of a number line.

For part (a), the exponent is 4. So we move the decimal point 4 spaces to the right.

The 3.25 then becomes 32500

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

In part (b), the exponent -3 means we move 3 spots to the left to go from 6.04 to 0.00604

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

Part (c)

Place the decimal point between the first two digits and erase the zeros to get 2.4

Then we need to move the decimal point 6 spots to the right to get back to 2,400,000 again

Therefore we can say 2,400,000 = 2.4*10^6

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

Part (d)

Place the decimal point just after the first nonzero digit, and erase the zeros to the left to get 1.47

We must move the decimal point 3 spots to the left to go from 1.47 back to 0.00147 again

It means 0.00147 = 1.47*10^(-3)

Answer: he is right

Step-by-step explanation:

hello

to solve this question we would first of all find the slope of the line

we can now substitute this into the equation

the slope of the line is -3

we can write out how the equation looks

we can use one of the points to solve for b

we can now rewrite our equation with slope and intercept

from the calculation above, the equation of the line is given as y = -3x + 1

The answer is -3 2/3 + 1 = -2 3/5

It's a linear equation form  -3/ 2/3

What is linear equation?

An equation between two variables that, when plotted on a graph, produces a straight line or say first degree equation is known as linear equation.

An addition problem that has a sum of -3 2/3 may take different forms one of which is the answer supplied where; -3 2/3 is added to 1 and the result is -2 3/5

Therefore, the answer of  -3 2/3 is -2 3/5

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Interquartile range of the scores is 7.

When values are ranked from lowest to highest, the IQR designates the middle 50% of those values. Find the median (middle value) of the bottom half and upper half of the data before calculating the interquartile range (IQR). Quartile 1 (Q1) and Quartile 3 are these values (Q3). The IQR represents the variation between Q3 and Q1. The strongest indicator of variability in data sets with outliers or skewed distributions is the interquartile range. It's unlikely to be impacted by outliers because it's based on numbers that come from the center half of the distribution.

Given Set

16, 12, 20,35,21,17,19,20,13,12,15

12, 12, 13, 15, 16, 17, 19, 20, 20, 21, 35

25 percentile(Q₁) = 13

50 percentile(Q₂) = 17

75 percentile(Q₃) = 20

Interquartile range = Q₃ - Q₁

Interquartile range = 20-13

Interquartile range = 7

Interquartile range of the scores is 7.

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Please, give me some minutes to take over your question

Ben run 6 miles in an hour. How many miles does Ben run in nine hours?

Ratio

6 miles / 1 hour

6 miles/ 1 hour = x miles / 9 hours

x= 6 * 9 = 54 miles

Ben runs 54 miles in 9 hours.

The quotient of 33/402 is 0 and the remainder is 369

The division expression is given as

33/402

From the above expression, we have

Numerator = 33

Denominator = 402

As a general rule of quotient, when the denominator is greater than the numeration, then the quotient is 0

The division expression is given as

33/402

From the above expression, we have

Numerator = 33

Denominator = 402

As a general rule of quotient, when the denominator is greater than the numeration, then the remainder is 0

Remainder = Denominator - Numerator

This gives

Remainder = 402 - 33

Evaluate

Remainder = 369

This means that the remainder of 33/402 is 369

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Possible question

Find the quotient and remainder for the following expression using the division algorithm.

33/402

At the CD's maturity in 2 years' time, the future value that you can collect is $4,347.22.

The future value (FV) of CD is the present value compounded at an interest rate of 4.25% for 2 years in the future.

We can compute the future value using the FV formula or an online finance calculator as below.

N (# of periods) = 2 years (24 months)

I/Y (Interest per year) = 4.25%

PV (Present Value) = $4,000

PMT (Periodic Payment) = $0

Results:

FV = $4,347.22 ($4,000 + $347.22)

Total Interest = $347.22

Thus, the 24-month CD purchased for $4000 will yield a future value of $4,347.22 at maturity.

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The numeric value of the slope of the inverse function at x = -32 is given by:

(h^-1)'(-32) = 0.03.

To find the inverse of a function, we exchange x and y in the original function, then isolate y.

This means that if the original function has a point (x,y) graphed, the inverse will have point (y,x) graphed.

From it's graph, the function h(x) has these two following points:

(-4.552, -32) and (-4.555, -32.1)

Hence the inverse will have these two following points:

(-32, -4.552) and (-32.1, -4.555).

The slope is given by change in y divided by change in x, hence:

(h^-1)'(-32) = (-4.552 - (-4.555))/(-32 - (-32.1)) = 0.03.

Which is also equivalent to the derivative of the inverse function at x = -32.

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ANSWER

• AB and EF

• BC and FG

• AC and EG

EXPLANATION

The order in which the vertices of the triangles are named gives us which sides are congruent. If ΔABC ≅ ΔEFG, then the pairs of corresponding congruent sides are,

The graph represents a linear function with negative slope.

How does different type of graph and their equations look like?
1. Linear graph: It is of the form y= mx+ c

First-order variables are present in linear functions, and the graph's placement is determined by two constants. These operations graph into a line in every case. The slope of the line is determined by the constant m. The slope of the line will slope up if it is positive and down if it is negative.

2. Quadratic graph: y= ax^2+ bx+ c

These type of graphs have an U shaped curve and their slope can also be obtained by drawing a tangent.

3. Square root graph : F(x)=x is the parent function of all functions with the formula f(x)=a+b. Keep in mind that f(x)=x has an x0 domain and a y0 range. By translating the graph of f(x)=x to a units to the right and then b units up, the graph of f(x)=root x-a+b can be derived.

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The steps that would be applied to solve the equation are:

multiplying both sides of the equation by 3

substituting 36 for p to check the solution

An equation is a statement in mathematics that consists of two or more expressions that are connected by an equal to sign.

The given equation is:

p / 3 = 12

In order to solve, the equation, p has to be made the subject of the formula.

In order to make the subject of the formula, take the following step:

Multiply both sides of the equation by the denominator of p. The denominator of p is 3.

3 x (p/3) = (12 x 3)

p = 36

Substitute for p using 36 to check the accuracy of the answer derived

36 / 3 =12

Here are the options:

subtracting 3 from both sides of the equation

multiplying both sides of the equation by 3

dividing both sides of the equation by 3

substituting 4 for p to check the solution

substituting 36 for p to check the solution

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1) Since we know the decimal places, then we can write out the following number:

Note the 3 decimal places after the dot is the thousandth's place. Note that we can either write the last digit or omit it.

42 / 15-2^3

First, solve for the exponent:

42 / 15-8

Subtract:

42/7

Divide:

6

Answer: a) 216 beats     b) almost 16 minutes

Step-by-step explanation:

54 beats/minute x 4 minutes = 216 beats

855 beats / 54 beats/minutes = 15.83333 minutes

Hope this helps!

Answer:

Part A: 0.8x

Part B: 80% of the original price.

Explanation:

Part A:

The store sells the boots at a sale price of 20% off, meaning the price of the shoes is 100% - 20 % = 80% of the original price. If we call x the original price, then the sale price would be

Part B:

The sale price of the boots is 100% - 20% = 80% of the original price.

Answer:

  1) 120 units

  2) see attachment

Step-by-step explanation:

Given a figure composed of 21 squares that each have an area of 25 square units, you want to know (1) the perimeter of the figure, and (2) how to rearrange it to have the same perimeter, but with sides that line up.

The perimeter is the sum of the lengths of the sides that form the boundary of the figure. The boundary consists of ...

for a total of 6·4 = 24 edges of the squares shown.

Each of the squares shown has an area of A = s² = 25 units², so a side length of s = √(25 units²) = 5 units.

The perimeter is the length of 24 of these edges, so is ...

  perimeter = 24 × 5 units = 120 units

The 21 squares shown in the figure can only be rearranged into rectangles that are 21 × 1 squares or 7 × 3 squares. These will have perimeters of 44 or 20 edges, respectively. Hence, it is not possible to have "sides of the squares line up" in a rectangle with the same perimeter.

The attached figure is the next best thing. It shows a 6 × 4 rectangle with three squares removed (to keep the total at 21). The number of horizontal and vertical edges total 24, as required to keep the same perimeter.

Answer:

8. y=3x+2

9. y=2x-6

10. y=1/2x+3

14. y=-2x

all i know hope this helps

Multiply the number of colors by the number of styles

9 x 3 =27 ways

The earnings and deductions, are given as follows:

First we find her gross earning, which is given by the hourly wage multiplied by the number of hours worked, hence:

Gross pay = 40 x 18 = $720.

Hence her yearly income is given by:

Yearly income = 52 x 720 = $37440.

Meaning that her federal tax rate is of $19.76 a week plus 12% of the excess over $197.60, then:

Federal tax = 19.76 + 0.12 x (720 - 197.60) = $82.45.

The social security tax rate is of 6.2% of her gross weekly earnings, hence it is given by:

Social Security = 0.062 x 720 = $44.64.

The medicare tax rate is of 1.45% for Lynn(employee), hence:

Medicare = 0.0145 x 720 = $10.44.

The state tax is 3% of her gross earnings, hence:

State tax = 0.03 x 720 = $21.60.

The local tax is 1.5% of her gross earnings, hence:

State tax = 0.015 x 720 = $10.80.

The medical and union dues are stated in the problem, hence the sum of all discounts is given by:

82.45 + 44.64 + 10.44 + 21.60 + 10.80 + 35 + 17 = $221.93.

The net pay is the gross pay subtracted by the discounts, hence:

Net pay = 720 - 221.93 = $498.07.

The value of an allowance is not stated, hence they are not considered for the calculations.

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X<4 means that the chosen number is less than four and probability if the event X<4, P(X<4) 2/5.

Let us say that we have to select one number between 0-9.

So, the total possible outcomes can be 10.

Let us say that a number x is chosen randomly,

The expression x<4 means that is the chosen number is X, then the number should must be less than 4, not even equal, it should be less than 4.

So, The probability of X<4, we should first find total favorable outcomes,

The total number less than 4 are 0,1,2,3.

So, the total favorable outcomes are 4.

We know,

Probability of event E is,

P(E) = total favorable outcomes/total number of outcomes.

So, P(X<4) = 4/10

P(X<4) = 2/5

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Answer:

[tex]11\frac{14}{48}[/tex]

Step-by-step explanation:

[tex]7\frac{3}{16}+4\frac{5}{48}[/tex]

First, make these improper fractions.

[tex]\frac{115}{16} +\frac{197}{48}[/tex]

And now to add these fractions, make the denominators the same.

For that, multiply both the numerator and denominator of the fraction 115/16 by 3.

[tex]\frac{115*3}{16*3} +\frac{197}{48}\\\\\frac{345}{48} +\frac{197}{48}\\\\\frac{542}{48} \\\\=11\frac{14}{48}[/tex]

Answer:

  (b)  4.65×10⁹

Step-by-step explanation:

You want 4,650,000,000 written in scientific notation.

A number is written in scientific notation in the form shown in the second attachment. The coefficient has one digit to the left of the decimal point. The remaining significant digits of the number are to the right of the decimal point.

The exponent is the same as the exponent of the place value of the most significant digit of the number. Some of those exponents are shown in the first attachment.

The given number has its most significant digit (4) in the "billions" place. The corresponding exponent of 10 is 9. Putting 4 to the left of the decimal point, the number is written in scientific notation as ...

  4.65×10⁹

__

Additional comment

In the above, we have used the superscript font to indicate the exponent. In plain text, an exponent is indicated with a caret (^), as in 4.65·10^9.

If you use an "x" character for a multiplication symbol, you need to make sure it cannot be confused with a variable named "x".

In spreadsheets and some calculators, the base and exponent are written as "E". Here, the number would be 4.65E9. (This is a carryover from one of the earliest high-level computer programming languages.)

(You will notice that the number in the second attachment is similar to, but not the same as, the one given in this problem statement. We intend that attachment to show the format, not the answer to this question.)

ANSWER

36°

EXPLANATION

A full circle has a central angle of 360°. If this figure represents 1/10 of a full circle, then its central angle is 1/10 of the central angle of the full circle:

Hence, the measure of the central angle in this figure is 36°.