The value of logarithmic expression 1/2 (logx4 + logx y) - 3 logx z as a single logarithm is (log4x^2y)^1/2/logx z^3
By considering the given logarithmic expression
1/2 (logx4 + logx y) - 3 logx z
=1/2 (log4x^2y)-3 logx z
=(log4x^2y)^1/2- logx z^3
=(log4x^2y)^1/2/logx z^3
The logarithm is exponentiation's opposite function in mathematics. This means that the exponent to which a fixed number, base b, must be raised in order to produce a given number x, is represented by the logarithm of that number.
Based on the logarithm base, the logarithmic functions are broadly divided into two types. There are common and natural logarithms. Common logarithms are based on the number 10, while natural logarithms are based on the base "e." The power to which a number must be raised in order to obtain another number is known as a logarithm (see Section 3 of this Math Review for more about exponents).
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A student has these scores on their assignments. the teacher is considering dropping a lowest score. what effect does eliminating the lowest value, 0, from the data set have on the mean and median? 0, 40, 60, 70, 75, 80, 85, 95, 95, 100 select all the true statements.
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
Mean without '0' = 40+ 60+ 70+ 75+ 80+ 85+ 95+ 95+ 100/9= 700/9
= 77.777
Median without '0' = 80Mean with ' 0' = 0+ 40+ 60+ 70+ 75+ 80+ 85+ 95+ 95+ 100/10 = 70Median with '0' = 80Learn more about mean and median here:
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the owner of the outdoor furniture center decides to use the 120% markup. at the end of the season, he wants to sell all the benches that are in stock. he sells the benches for 20% off. what is the total price of a bench with this discount plus a 5% sales tax?
The total Cost of a bench is 1.008x.
According to the statement,
We have to find that the cost of the bench.
So, For this purpose, we know that the
The cost function may be accustomed find the typical cost, which is that the average amount of cash it costs to provide a unit.
From the given information:
The owner of the outdoor furniture center decides to use the 120% markup. at the tip of the season, he wants to sell all the benches that are available. he sells the benches for 20% off.
Then
Since we've provided that
Let the price price be 'x'.Mark up % = 120%
So, price value would be 120x/100
Then
Discount % = 20%
Amount of discount is given by
20* 1.2x/1000.
24x
So, it becomes,
Amount after discount is given by
1.2x - 0.24x = 0.96x
Amount of sales tax would be
100+5/100*0.96x
105/100*0.96x
1.008x.
So, The total Cost of a bench is 1.008x.
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math.. HELP :(
A mountain goat is climbing to the top of a large cliff. The cliff is 50 feet higher than its starting point. If it takes the goat 22 minutes to climb this cliff, interpret the quotient to describe the rate of change in the goat’s elevation. Give your answer to the nearest hundredth.
The quotient that best represents the rate of change in the goat’s elevation is _
feet/minute.
The quotient that best represents the rate of change in the mountain goat’s elevation is 2.27 feet/minute.
What is quotient?Quotient can be defined as a mathematical expression that is simply used to represent the division of a number by another number.
What is the rate of change?The rate of change can be defined as a type of function that describes the average rate at which a quantity decreases or increases with respect to another quantity.
Mathematically, the rate of change can be calculated by using this formula;
Rate of change = Δy/Δx = Change in height/Change in time
Substituting the given parameters into the formula, we have;
Rate of change = Quotient = 50 feet/22 minutes
Rate of change = Quotient = 2.27 feet/minute.
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Write a numerical expression using one of the properties that is equivalent to 2⁸
The numerical expression using commutative property of multiplication that is equivalent to 2⁸ is 2² x 2² x 2² x 2² = 256.
What is multiplication?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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can someone please explain what a stem-and-leaf plot is? (10 points)
[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.
Identify the steps followed to solve the equation 5(3x+2)+7=6+2(3x−8)
Put responses in the correct input to answer the question.
15x+10+7 = 6+ 6x−16
15x+17=6x−10
9x+17=−10
9x=−27
x=−3
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
A new club sent out 192 coupons to boost sales for next year's memberships. They provided 3 times as many to potential members
than to existing members. How many coupons did they send to existing members?
The number of coupons send by new club to existing members are 64.
What is defined as the product?The term product refers to the solution to a multiplication troubles.Multiplication is also known as repeated addition because the multiplication problem indicates that you have a particular number of groups about something, each of which contains a specific number.The commutative property states that when two numbers have been multiplied together, this same product remains the same regardless of how they are written.When three or even more numbers are magnified together, the product is the same no matter which two are multiplied first.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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23^8*23^n=(23^5)^3. what is the answer
[tex]23^8\cdot 23^n=(23^5)^3\implies \underset{same~base}{\stackrel{same~exponent}{23^{8+n}=23^{(5)(3)}}}\implies 8+n=(5)(3) \\\\\\ 8+n=15\implies n=7[/tex]
I need help now I will give lots of points
Answer:
-12
Step-by-step explanation:
putting value of n in the equation will give you the answer
What is the value of p?
Α. 45°
Β. 55°
C. 35°
D. 125°
Answer:
C I think would be the answer.
Simplify 0.1+3.7+5.9
Use the Commutative Property of Multiplication to write an expression equivalent to x•9.
Answer:
9 x x
Step-by-step explanation:
commutative property just means you can switch the numbers around
God help me, I'm literally on the bus right now
The three that aren't answered
Answer:
Step-by-step explanation:
1. 170, 13 7/8, 13.5, 64/5
2. Plant D = 5.2 in Plant B =5.3 in Plant C = 5.5in Plant A =5.92
3. Chelsea, Finn, Erin, Mitchell
(6-x)-(x-5)-(4-x)=-x/2
Answer:
[tex]x = 14[/tex]
Step-by-step explanation:
[tex](6-x)-(x-5)-(4-x)=-\frac x2 \text{ // Distribute}\\\to 6 - x - x + 5 - 4 + x = -\frac x2 \text{ // Simplify}\\\to 7 - x = -\frac x2 \text{ // Multiply by 2}\\\to 2(7 - x) = 2(-\frac x2) \text{ // Distribute}\\\to 14 - 2x = -x \text{ // Add 2x}\\\to 14 = x[/tex]
A machine can produce a nail every 2.4 seconds. If the machine keeps running for 3 days without stop, how many nails can be produced?
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.
MATH: need help asap
Answer: P = 4x + 2, A = x² + x - 6
Step-by-step explanation:
Perimeter is the distance around a shape, or all the sides added together. We will create an equation, plug in the known values, and then solve. The first step is to distribute, then we combine like terms.
P = 2l + 2w
P = 2(x + 3) + 2(x - 2)
P = 2x + 6 + 2x - 4
P = 4x + 2
The area of a rectangle is found by multiplying the width by the length. We will use the FOIL method.
A = (x + 3)(x - 2)
A = x² + x - 6
First ➜ x * x = x²
Outside ➜ x * -2 = -2x
Inside ➜ 3 * x = 3x
Last ➜ 3 * -2 = -6
Add together ➜ x² + 3x - 2x - 6 = x² + x - 6
The temperature of a city changed by a total of −20 degrees Celsius over a 4-week period. The temperature changed by the same amount each week.
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.
What was the temperature change?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 calorie count of a serving of food can be computed based on its composition of carbohydrates, fat, and protein. The calorie count C for a serving of food can be computed using the formula C=4h+7f+5p, where h is the number of grams of carbohydrate contained in the serving, f is the number of grams of fat contained in the serving, and p is the number of grams of protein contained in the serving. Solve this formula for f, the number of grams of fat contained in a food serving.
Using the calorie count C for a serving of food C=4h+7f+5p, the formula for f is derived to be f =( C - 4h - 5p ) / 7
How to solve for f in the equation givenGiven data
C = 4h + 7f + 5p
C is the calorie count
h is the number of grams of carbohydrate
f is the number of grams of fat
p is the number of grams of protein
solving for f in the given equation
C = 4h + 7f + 5p
make f the subject of formula
C - 4h - 5p = 7f
7f = C - 4h - 5p
dividing through by 7
f =( C - 4h - 5p ) / 7
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rewrite each expression in simpler terms. you may not use negative exponents
32x^3/ 16x^7
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]
It takes franklin 14 hours to make a 200-square-foot cement patio. it takes scott 10 hours to make the same size patio. which equation can be used to find x, the number of hours it would take franklin and scott to make the patio together? 14 x 10 x = 200 one-fourteenth x minus one-tenth x = 1 one-fourteenth x plus one-tenth x = 1 14 x minus 10 x = 200
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:
Solve for the volume of a square pyramid if a side length is 7 and the height is 21
v=a2h/3
The volume of the square pyramid that has a side length of 7 and a height of 21 is calculated as: 343 units³.
What is a Square Pyramid?A square pyramid is a type of pyramid that has a square base and four triangular faces.
How to Find the Volume of a Square Pyramid?The volume of a square pyramid can be calculated using the formula expressed as:
Volume (V) = 1/3(a²)(h), where a is the length of a side and h is the height of the square pyramid.
Given:
Side length (a) = 7 units
Height of the square pyramid = 21 units
Substitute
Volume (V) = 1/3(7²)(21)
Volume (V) = 1/3(49)(21)
Volume (V) = 1(49)(7)
Volume = 343 units³
Therefore, the volume of the square pyramid that has a side length of 7 and a height of 21 is calculated as: 343 units³.
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Wes wanted to bake cookies so he preheated the oven, the graph below shows the temperature of the oven over different periods of time
the temperature will be 2.5 degrees per second.
We are given the data:
Seconds Temperature (°F)
0 75
10 100
20 125
30 150
We need to find the temperature in degrees per second.
So, we get that:
Seconds Temperature (°F) degrees / sec
0 75 Nil
10 100 (100 - 75) / (10 - 0) = 2.5
20 125 (125 - 100) / (20 - 10) = 2.5
30 150 (150 - 125) / (30 - 20) = 2.5
Therefore, the temperature will be 2.5 degrees per second.
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What is the equation of the line that passes through the point (8, 7) and has a slope
of 1?
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
The circle below has a sector 120° shaded. 120° 22 Find the area of the shaded sector. Use π = 7 and give your answer correct to 1 decimal place.
The circle below has a sector 120° shaded. 120° 22. Then area of sector is 200.
What is circle?A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.
Area of sector=theta/360*πr^2
Given π = 7,
theta=120 degrees
d=22, so r=11.
Area of sector=210/360*7*7^2
=0.583*7*7*7
=200.08
Therefore area of sector is 200.
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A student is finding the total cost of c, including sales tax, of a book that costs 9.95. the sales tax rate is 9%. find the students mistake and correct it.
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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What does x equal? −3(2x−3)=−6x+9
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
Expand each logarithm.
log 10 m⁴ n⁻²
If we expand the expression [tex]log_{10}[/tex] m⁴ n⁻², then we will get
4m-2n.
Given that the expression is [tex]log_{10}[/tex] m⁴ n⁻²
We are required to find the expansion value of the expression.
The change of base formula is basically the formula which will give us the answer of a log with a different base by using only log calculations with a base of 10.
The expression or function is [tex]log_{10}[/tex] m⁴ n⁻².
(We know that log mn=log m +log n)
So,
[tex]log_{10}[/tex] m⁴ n⁻² =4m-2n (log [tex]a^{b}[/tex]=b log a)
Hence if we expand the expression [tex]log_{10}[/tex] m⁴ n⁻², then we will get
4m-2n.
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In 5-7 complete sentences, write a real world situation that can be modeled by the equation. Make it fun by using your name, if you want!
16x=14x+8
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
What are expressions?Expressions are mathematical statements that are represented by variables, coefficients and operators
How to model the expression by a real world situation?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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Put together the whole solution.
694÷41 is equal to 10+3+2+1 with a remainder.
694 divided by 41 is
remainder
.
694 divided by 41 is 16 remainder 38.
What is Division?A division is a process of splitting a specific amount into equal parts.
given:
694÷41 is equal to 10+3+2+1
Now, performing the division
41 | 694 | 1 6
- 41
__________
284
246
-___________
38
So, when 694 is divided by 41 gives remainder 38.
Hence, 694 divided by 41 is 16 remainder 38.
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Select the correct answer.
What is the slope-intercept form of the equation of a line that passes through (5, -4) and has a slope of 3/4'?
A.
B.
C.
D.
y=-(3)/(4) × -(1)/(4)
y = 3/4 x +(1)/(4)
y = 3/4 x-(31)/(4)
y=3/4 x +(31)/(4)
Answer:
D
Step-by-step explanation:
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