Please help!! Describe the domain and range using interval notation.

Mean = Sum of all observations/Number of observations

The value of the middlemost observation, obtained after arranging the data in ascending or descending order, is called the median of the data.

Given,

The set of scores =  0, 40, 60, 70, 75, 80, 85, 95, 95, 100

                           = 700/9

                           = 77.777

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The bank can borrow $6440 based on the $7000 deposit.

The following deposit amount: $7000

Because the reserve rate is 8%, the bank will reserve 8% of the 7000. The remaining funds can be lent by the bank.

7000 × (8/100) = amount set aside

= $560

Thus, the reserve deposit is $560.

Amount the bank is willing to lend = 7000 - 560 = $6440

Thus, the bank can lend $6440 based on a deposit of $7000.

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The equation which can be used to find x is, [tex]\bold{\frac{1}{x} =\frac{1}{14} +\frac{1}{10} }[/tex]

The time taken by Franklin to make a 200 sq. foot cement patio = 14 hours

The time taken by Scott to make a 200 sq. foot cement patio = 10 hours.

Let x be the number of hours it would take Franklin and Scott to make the patio together.

Then x = 14 x 10 / (14 + 10)

⇒ 1 / x = (14+10)/(14 x 10)

⇒ 1/x = 1/14 +1/10

This is the equation to find the number of hours taken by Franklin and Scott together.

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Answer:

C

Edge2020

Step-by-step explanation:

Answer:

Step-by-step explanation:

cevap a ANSWER A

Answer:

Step-by-step explanation:

so 2.4 nails per second, multiply it by 60 (60 seconds in a minute) =144 so 144 nails per minute. 144 nails per minute times 60 minutes is 8640 nails per hour. If it’s running for 3 days non-stop it would be 72 hours, so 8640 multiplied by 72 (hours) 622,080 nails would be the total in 3 days.

Answer:

9.8E^-5 (or 9.8*10^-5)

Step-by-step explanation:

0.000098 converted to scientific notation is either 9.8E^-5 or 9.8*10^-5 as they are the same, just different ways of writing it. To get this, you just count the spaces away from the decimal point the number is.

ex.) 0.98 = 9.8E^-1 as it just has to move 1 decimal

980 = 9.8E^1 as it has to move 1 decimal to the positive side

and so on.

Answer:

b^2 - 4ac ==> what's inside the square root

The answer is the 2nd option

Step-by-step explanation:

b^2 - 4ac represents the number of roots in the quadratic equation. If

b^2 - 4ac>0, then there are 2 roots in the quadratic equation. If

b^2 - 4ac=0, then there is only 1 root. If b^2 - 4ac<0, then the square root of b^2 - 4ac would be invalid since the square root of a negative number has no real solution. Hence, if b^2 - 4ac<0, then there are no roots.

Answer:

The answer should be option B. b^2-4ac

Step-by-step explanation:

...

Answer: The answer for this question is x=1

Step-by-step explanation: -3(2x-3)=-6x+9 first you multiply -3x with 2x and -3 to get -6x+9=-6x+9 then subtract nine from both sides to leaves -6x=-6x then you divide -6 on both sides and you get x=1.

Any value of x makes the equation true. All real numbers

Interval Notation: (−∞,∞)

Because if you solve it

-3(2x-3)=-6x+9

distribute

-6x + 9 = -6x + 9

subtract 9 from both sides

-6x = -6x

simplify

0 = 0

Answer:

9 x x

Step-by-step explanation:

commutative property just means you can switch the numbers around

The number of coupons send by new club to existing members are 64.

For the given conditions in the question.

Let the existing number be 'x'.

3 times the number means do the multiplication of number by 3.

= 3x.

3 times as many to potential members than to existing members.

Thus,

3x = 192

x = 192/3

x = 64

Thus, the number of existing members are found to be 64.

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Answer:

8/9

Step-by-step explanation:

4/9 times 2 is 8/9 and 8/9 is already the simplest way to put it so the answer is 8/9

Answer:

8/9

Step-by-step explanation:

(4/9)(2/1)

(4)/(9)(2)/(1)

8/9

0.888 (decimal)

Answer:

I'm pretty sure it would be B

Step-by-step explanation:

X and Y

Answer:

am pretty sure it answer b

Based on the change in the temperature of the city over the 4-week period, the expression to show the average change in temperature each week is -20 / 4

When the expression is simplified, the result if -5°C which means that the temperature reduced by 5°C every week.

The average temperature change of the city each week can be found by:

= Total change in temperature / Number of weeks

Solving gives:

= -20 / 4

= -5°C

This means each week for the 4-week period, the temperature of the city decreased by 5°C.

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The numerical expression using commutative property of multiplication that is equivalent to 2⁸ is 2² x 2² x 2² x 2² = 256.

Multiplication is one of the four elementary mathematical operations of arithmetic, with the other ones being addition, subtraction, and division. The result of a multiplication operation is called a product.

Now the given exponent is,

2⁸

Now, 8 can be written as using associative property of addition,

8 = 2 + 2 + 2 + 2

Thus we can write,

2⁸ = 2^( 2 + 2 + 2 + 2 )

Using exponential property

x^(a + b) = x^a . x^b

Thus we get,

2⁸ = 2^2 . 2^2 . 2^2 . 2^2

Thus numerical expression for 2^8 = 2^2 . 2^2 . 2^2 . 2^2

Solving we get,

2^8 = 4 x 4 x 4 x 4 = 256

Thus, the numerical expression using exponential property of multiplication that is equivalent to 2⁸ is 2² x 2² x 2² x 2² = 256.

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[tex]{\huge\color{red}{\boxed{\fcolorbox{green}{black}{꧁ANSWER ꧂}}}}[/tex]

A stem and leaf plot is a simple kind of graph that is made out of the numbers themselves.

It is a means of displaying the main features of a distribution.

If a stem and leaf plot is turned on its side.

it will resemble a bar graph or histogram and provide similar visual information.

Answer:

A stem and leaf plot is a simple kind of graph that is made out of the numbers by their selves.

Answer:

$4.00

Step-by-step explanation:

make a proportion

50/125=x/1000

1000(50/125)=x

8(50)=x

400=x

400pennies=$4.00

or solve like this

50/125= 0.4 pennies per gram (p/g)

0.4p/g

0.4p/g*1000g=400p=$4.00

The midpoint of AR is (1/2 , 1).

Let the points be:

A(0,0) = (x₁,y₁)

B(1,2) = (x₂,y₂)

Midpoint = (x₁₊x₂/2) , (y₁₊y₂/2)

A location in the middle of a line connecting two points is referred to as the midpoint. The midpoint of a line is located between the two reference points, which are its endpoints. The line that connects these two places is split in half equally at the halfway. In addition, the halfway is reached if a line is drawn to divide the line that connects these two places.

= (0₊1/2) , (0₊2/2)

=(1/2 , 2/2)

= (1/2 , 1)

hence the midpoint of the number line is  (1/2 , 1).

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Answer:

[tex] \frac{2}{x {}^{4} } [/tex]

Step-by-step explanation:

[tex]1. \: \frac{32}{16} \times \frac{x {}^{3} }{x {}^{7} } \\ 2. \: 2 \times \frac{x {}^{3} }{x {}^{7} } \\ 3. \: 2x {}^{3 - 7} \\ 4. \: 2x {}^{ - 4} \\ 5. \: 2 \times \frac{1}{x {}^{4} } \\ 6. \: \frac{2}{x {}^{4} } [/tex]

If the equation be y = x² + 4 then the inverse function be [tex]f^{-1} (x)=[/tex] ± [tex]\sqrt{x - 4[/tex].

An inverse function, also known as an anti function, is a function that can be reversed into another function. Simply put, if any function " f " takes x to y, then its inverse will take y to x. The inverse function is denoted by f-1 or F-1 if the function is denoted by ' f ' or ' F '.

Let the equation be y = x² + 4    

then the function be f(x) = x² + 4

y = x² + 4

⇒ x = y² + 4

simplifying the above equation, we get

x - 4 = y²

√y² = √x - 4

The value of y = ± √x - 4

Therefore, the inverse function be [tex]f^{-1} (x) =[/tex] ±√x - 4

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The factoring of the expression x²=-x+6 is (x-2)(x+3)

By ordering the values, we get:

x² + x - 6 = 0

To solve this exercise, we have to follow the rules of factoring:

1. Looking for the a and b number that state the following equations:

Analyzing that (a*b) is a negative number, it means that (a) and (b) have different signs, and due to the results of (a+b) is positive the higher number has to be the positive one.  

The number could be:

a = -2

b = 3

Confirming:

a + b = -2 + 3 = 1

a * b = (-2) * 3 = - 6

2. Rewriting the factored expression (x+a)(x+b) with the obtained values, we get:

(x-2)(x+3)

Is a technique that consist of decomposition of a factor into a product of another factor, which when multiplied together give the original number.

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A possible real world scenario is that the product of your score in mathematics test and 16 is 8 more than the product of your score in mathematics test and 14

Expressions are mathematical statements that are represented by variables, coefficients and operators

The equation is given as

16x = 14x + 8

In the above equation, the variable of the equation is x while the number 8 is a constant

A possible real world scenario is that:

The product of your score in mathematics test and 16 is 8 more than the product of your score in mathematics test and 14

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The equation to illustrate the information regarding the temperature it the temperature rose 2 degrees every hour is -3 + 2h.

It should be noted that an equation is used to show the relationship between the variables.

In this case, when janelle woke up it was -3 degrees Fahrenheit outside.as the morning progressed,the temperature rose 2 degrees every hour.

Let the number if hours be represented by h

Therefore, the equation to illustrate the information will be -3 + 2h

here h = number of hours.

Note that the complete information wasn't found and the equation was illustrated.

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Answer:

x - y - 1 = 0

Step-by-step explanation:

Using y-intercept

b = y - m × x

b = 7 - (1) × (8) = -1

y = mx + b/Flip expression, subtracting from all sides

assuming x ≠ 0 for x = 1

assuming y = 0

y = x - 1

x - y - 1 = 0

Answer: 10 Cars!!!!

Step-by-step explanation:

The final cost of the book is 9.12

A sales tax is one that is levied on both the selling of products and services to businesses and on the purchases of those same goods and services by consumers. It's a form of consumption tax, which means it charges consumers for their purchases. Because sales taxes are typically passed on to customers at the moment of sale, it is classified as a consumption tax.

Solving the question:

Cost of the book = 9.95

Sale tax rate = 9%

Sale tax amount on 9.95 = 9.95/(9/100) = 9.12

Therefore, the final cost of the book is  = 9.12

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The final cost of the book is 9.12

A sales tax is one that is levied on both the selling of products and services to businesses and on the purchases of those same goods and services by consumers. It's a form of consumption tax, which means it charges consumers for their purchases. Because sales taxes are typically passed on to customers at the moment of sale, it is classified as a consumption tax.

Solving the question:

Cost of the book = 9.95

Sale tax rate = 9%

Sale tax amount on 9.95 = 9.95/(9/100) = 9.12

Therefore, the final cost of the book is  = 9.12

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Answer:

Step-by-step explanation:

answer: x=3

5(3x+2)+7=6+2(3x−8)

1: Simplify both sides of the equation.

5(3x+2)+7=6+2(3x−8)

(5)(3x)+(5)(2)+7=6+(2)(3x)+(2)(−8)(Distribute)

15x+10+7=6+6x+−16

(15x)+(10+7)=(6x)+(6+−16)(Combine Like Terms)

15x+17=6x+−10

15x+17=6x−10

2: Subtract 6x from both sides.

15x+17−6x=6x−10−6x

9x+17=−10

3: Subtract 17 from both sides.

9x+17−17=−10−17

9x=−27

4: Divide both sides by 9.

9x/9=-27/9

x=−3

Step-by-step explanation:

so, pre-image is then doing the opposite :

going up 2 units and left 4 units.

up/down changes y, left/right changes x.

up = positive y direction

down = negative y direction

right = positive x direction

left = negative x direction

just as indicated by the coordinate axes.

so,

going up 2 units = adding 2 to y

going left 4 units = subtracting 4 from x

giving us as pre-image point A

(4 - 4, -5 + 2) = (0, -3)

Answer:

6 1/3  

Step-by-step explanation:

18 3/4 divided by 3 is 6 1/3