Answer:
x = -4
Step-by-step explanation:
Add like terms:
6 + 6x + 6x = -42
12x + 6 = -42
Subtract 6 from both sides:
12x = -48
Divide each side by 12:
x = -4
Answer:
6+6x+6x = - 42
6+12x = -42 (combine like terms)
12x = -42-6
12x = -48
x = -48/12
x = -4
<3=3x
<6=9x+4
x=
PLEASEEE HELPPP
ill make brainiest
Answer: x=no solution
Step-by-step explanation:
Solve the equation for x 3x+9x = 6x + 42
= 3x + 9x = 6x + 42
= 3x + 9x - 6x = 42 ( transposing +6x from LHS to RHS changes +6x to -6x )
= 12x - 6x = 42
= 6x = 42
= x = 42 ÷ 6 ( transposing ×6 from LHS to RHS changes ×6 to ÷6 )
= x = 7
Let us check whether we have found out the correct value of x or not by placing 7 in the place of x :
= ( 3 × 7 ) + ( 9 × 7 ) = 6 × 7 + 42
= 21 + 63 = 42 + 42
= 84 = 84
= LHS = RHS
Hence proved we have derived the correct value of x .
Therefore , the value of x = 7 .
Shayla has 8 pencils, 12 crayons, and 10 markers in her supply box. What was the ratio of the number of crayons to the total number of items in her supply box?
Answer:
30
Step-by-step explanation:
also brainly is for learning not getting answers you couldve done with on your fingers
Solve the equation using reverse order of operations
-7 + s = -4
Answer:
-7 + s = -4
s = -4+7
s = 3
Which two of the following are not characteristics of surveys? A. The study compares two or more treatments, B. Statistical analysis is applied to the results of the study C . The study involves one or more treatment groups and a control group. . D. Data are gathered during the course of the study. Questlon 2 of 10 2 Points Which two of the following are not characteristics of surveys? A= The study compares two or more treatments. B. Statistical analysis is applied to the results of the study: C. The study involves one or more treatment groups and a control group. D. Data are gathered during the course of the study: MMmIt PREVIOUS'
Two of the following are not characteristics of surveys. They are; A. The study compares two or more treatments and B. Statistical analysis is applied to the results of the study. Surveys are important tools that help researchers to collect data for research purposes.
A survey is a research design used to collect data on specific behaviors and attitudes, or attributes of a sample. Surveys typically involve questionnaires that are administered to respondents. The survey questions should be carefully constructed so as to produce valid and reliable data. There are some characteristics of surveys. These characteristics include the following:
The study involves one or more treatment groups and a control group: Surveys typically involve a sample of people who are randomly selected to participate in the study. There is usually one or more treatment groups who receive some type of treatment or intervention, and a control group who do not.Data are gathered during the course of the study: Surveys typically involve collecting data from respondents over a period of time. Data can be collected through various methods such as questionnaires, interviews, or observations.
Statistical analysis is applied to the results of the study: The data collected during the survey is analyzed using statistical techniques. This allows researchers to draw conclusions about the population being studied.The study compares two or more treatments: Surveys can be used to compare two or more treatments. For example, a survey can be used to compare the effectiveness of two different medications for a particular illness.However, two of the following are not characteristics of surveys. They are; A. The study compares two or more treatments and B. Statistical analysis is applied to the results of the study.
Surveys are an important tool that researchers use to collect data on specific behaviors and attitudes or attributes of a sample. Surveys typically involve questionnaires that are administered to respondents. The data collected during the survey is analyzed using statistical techniques. However, the study does not always compare two or more treatments and statistical analysis is not always applied to the results of the study.
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yall answer this one and i will give brainliest
Answer:
The answer is B , or -3.
3- Find the Domain (ONLY) for each of the following functions (60 points - 10 each) 2 2 a) f(x) = x 3x4 b) f(x) = = c) M(x)=√√x - 5 x-3 10 d) g(x) = e) h(x) = a) f(x) = 2 x +9 x-4 16 miler cinca full tank x 2x-5 2 2x-15 I
We are given four functions, and we need to determine the domain for each of them. The functions are as follows: a)[tex]f(x) = x^2 - 3x^4[/tex], b) [tex]f(x) = (x-3)/(x^2 - 10)[/tex], c) [tex]M(x) = √(√(x-5)/(x-3))[/tex], d) g(x) = [tex]e^{(2x-5)/(2x-15)[/tex]. In this problem, we will analyze each function to identify its domain.
Explanation: To find the domain of a function, we need to consider any restrictions on the variable 'x' that would make the function undefined.
a) For the function[tex]f(x) = x^2 - 3x^4[/tex], there are no specific restrictions or denominators that would cause the function to be undefined. Therefore, the domain of f(x) is all real numbers.
b) In the function [tex]f(x) = (x-3)/(x^2 - 10)[/tex], the denominator should not be equal to zero. Thus, we need to exclude any values of 'x' that would make [tex]x^2 - 10 = 0[/tex]. Solving this equation, we find x = ±√10. Therefore, the domain of f(x) is all real numbers except x = ±√10.
c) For the function M(x) = √(√(x-5)/(x-3)), the expression inside the square roots must be greater than or equal to zero to avoid taking the square root of a negative number. Additionally, the denominator (x-3) should not equal zero. Solving these conditions, we find that the domain of M(x) is x ≥ 5 and x ≠ 3.
d) In the function g(x) = [tex]e^{(2x-5)/(2x-15)[/tex], the denominator (2x-15) should not be equal to zero. Thus, we need to exclude x = 7.5 from the domain. Apart from that, there are no other restrictions. Therefore, the domain of g(x) is all real numbers except x = 7.5.
In summary, the domains of the given functions are as follows:
a) f(x): All real numbers
b) f(x): x ≠ ±√10
c) M(x): x ≥ 5 and x ≠ 3
d) g(x): x ≠ 7.5
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Convert 32/7 into a mixed number
Answer:
4 4/7
Step-by-step explanation:
32/7 already reduced (simplified) Improper fraction, rewrite it as a mixed number: 32 ÷ 7 = 4 and remainder = 4 => 32/7 = (4 × 7 + 4)/7 = 4 + 4/7 = 4 4/7
1/4
of some number is 8.5. What is the number?
d. The difference between some number and 22.52 is 4.8. What is the number?
e.-6.6 is some number of times as large as 5. What is the number?
The required number is 38 when 1/4 of some number is 8.5, the number is 27.32 when the difference between some number and 22.52 is 4.8, and the number is -1.32 when -6.6 is some number of times as large as 5.
What is the number system?
A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9. Based on the basic value of its digits, different types of number systems exist.
1/4 of some number is 8.5 which is given in the question.
Let the required number would be x
As per the given condition, the solution would be as:
⇒ (1/4) x = 8.5
⇒ x = 8.5 × 4
⇒ x = 38
The difference between some number and 22.52 is 4.8 which is given in the question.
Let the required number would be y
As per the given condition, the solution would be as:
⇒ y - 22.52 = 4.8
⇒ y = 4.8 + 22.52
⇒ y = 27.32
-6.6 is some number of times as large as 5 which is given in the question.
Let the required number would be z
As per the given condition, the solution would be as:
⇒ 5 × z = -6.6
⇒ z = -6.6 / 5
⇒ z = -1.32
Hence, the required number is 38 when 1/4 of some number is 8.5, the number is 27.32 when the difference between some number and 22.52 is 4.8, and the number is -1.32 when -6.6 is some number of times as large as 5.
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In a half hour, Sarah is meeting her friends at the lake, 6 miles from her house. At what average speed must
she ride her bike to get there on time?
Answer:
Divide 6 miles by 0.5 hour: 6/0.5 = 12 miles per hour.
Step-by-step explanation:
The average speed must she rides her bike to get there on time will be 12 miles per hour.
What is speed?The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.
We know that the speed formula
Speed = Distance/Time
In a half-hour, Sarah is meeting her friends at the lake, 6 miles from her house.
The average speed must she rides her bike to get there on time will be
S = 6 / (1/2)
S = 6 x 2
S = 12 miles per hour
The average speed must she rides her bike to get there on time will be 12 miles per hour.
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Sasha buys a bicycle priced at $90. If the sales tax is 10%, how much tax will Sasha pay?
Answer:
Sasha will pay $99.
Step-by-step explanation:
10% of 90 is 9 so add that together you get $99.
Answer:
Amount paid by Sasha = bicycle price + tax
=> 90 + 10% of 90
=> 90 + 10/100 * 90
=> 90 + 9 (Once you solve it, you will get the answer as 9)
=> 99
Therefore the total price of the bicycle = 99 dollars and the tax paid will be 9 dollars
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In 2008, 870 students signed up for the town soccer program. This was 125% of the number who signed up in 2004. How many students signed up in 2004?
Answer:
%125 is equal to 870 for this problem.
if in 2008 its 870
that mean %125=870
if 125 870
100 x
this is a ratio problem
im going to multiply 100×870 and then divide by 125 to find the answer.
100×870= 87.000
87.000÷125=696.
good luck(: if u have question, ask me
Which expression is equivalent to (a^8)^4
?
Answer:
=a^32
Step-by-step explanation:
(a^8)^4= a^8.4
=a^8.4
Identify the relationship between the angle measures shown below. *
Captionless Image
Alternate Exterior Angles
Corresponding Angles
Same-Side Interior Angles
Vertical Angles
Answer:
corresponding angles
0.008 times what equals 0.08
Answer:
10
Step-by-step explanation:
0.008 * 10 = 0.08 for every zero behind the one in ten it will go up for ex. > 567 * 10 = 5670 > 729 * 1000 = 729,000, the other answer also explains it pretty well
Answer:
10
Step-by-step explanation:
If your familliar with scientific notation, this should be pretty simple. Each time you multiply by 10, you remove a decimal place, making the number larger. Divide by 10, and vice versa. Since your only getting rid of one decimal place from 0.008 to 0.08, you only need to multiply by 10
r + A/n = b^2
Please help timed question!!!
rewrite using a single positive exponent 4^9/4^3
Answer:
4⁶
Step-by-step explanation:
Exponent Rule: [tex]\frac{b^m}{b^n} =b^{m-n}[/tex]
4⁹/4³ = 4⁹⁻³ = 4⁶
A used bookstore sells hardback books and paperback books.
· A hardback book costs $11, including tax.
· A paperback book costs $5, including tax.
· Jamal bought 3 more paperback books than hardback books.
· Jamal spent $47.
How many paperback books did Jamal buy?
2
3
4
5
Answer:
4 HOPE IM NOT WRONG O-O
Step-by-step explanation:
Anyone know the answer
Answer:
It is 2 miles per hour
Step-by-step explanation:
Because you divided 6 and 3
What is 1/12+1/20 answer pleaseeeee
Answer:
15 /2 =0.13333
Step-by-step explanation:
Answer:
2/15
Step-by-step explanation:
Evaluate the expression x^4+9x^2 when x=-3
Answer:
162
Step-by-step explanation:
Step 1: Define
x⁴ + 9x²
x = -3
Step 2: Substitute and Evaluate
(-3)⁴ + 9(-3)²
81 + 9(9)
81 + 81
162
Answer:
162
Step-by-step explanation:
There are 50 members in the North Carolina.this is 70 fewer than the number in North Carolina House of Representatives.how many members are in the North Carolina house representatives?
Given data:
Number of members in North Carolina = 50
Unknown:
Number of members in North Carolina house of representatives = ?
To solve this problem, the second sentence is very important; let us construe it.
Let the number of members in North Carolina house of representatives = N
Then,
Number of members in North Carolina = N - 70
Since it is 70 fewer;
So, input the given number of members in North Carolina;
50 = N - 70
N = 50 + 70 = 120
Number of members in North Carolina house of representatives is 120.
Suppose that firms face the following production function: Q = L¹/4 + K1/4. What is the degree of elasticity of substitution? A. 1/4 B. infinity C.0.4 D.4/3
The degree of elasticity of substitution is 1/4. The correct answer is A.
The degree of elasticity of substitution measures the responsiveness of the substitution between two inputs (in this case, labor and capital) in the production function.
It is calculated using the formula:
E = - (∂ln(K/L)) / (∂ln(MPL/MPK))
where E is the elasticity of substitution, K is capital, L is labor, MPL is the marginal product of labor, and MPK is the marginal product of capital.
In the given production function Q = L¹/4 + K1/4, the partial derivatives required to calculate the elasticity of substitution are:
∂ln(K/L) = (1/4) * (1/K - 1/L)
∂ln(MPL/MPK) = (1/4) * (1/(LQ) - 1/(KQ))
After simplifying the expressions, we find:
E = - [(1/K - 1/L) / (1/(LQ) - 1/(KQ))]
Since Q = L¹/4 + K1/4, the denominator can be rewritten as:
1/(LQ) - 1/(KQ) = 1/(L(L¹/4 + K1/4)) - 1/(K(L¹/4 + K1/4))
= 1/(L^(5/4)) - 1/(K^(5/4))
Substituting this back into the equation for E, we have:
E = - [(1/K - 1/L) / (1/(L^(5/4)) - 1/(K^(5/4)))]
By simplifying further, we find that the degree of elasticity of substitution is equal to 1/4.
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Which single transformation can be applied to the graph of y = 72 StartRoot x EndRoot to produce the graph of y = 9 StartRoot x EndRoot?
Answer:
B
Step-by-step explanation:
Transformation that can be applied to the graph of y = 72 √x to produce the graph of y = 9√x is vertical compression.
What is Geometric Transformation?Transformation of geometrical figures or points is the manipulation of a given figure to some other way.
Here the original graph is,
y = 72√x
The new graph is,
y = 9√x = 1/8 (72 √x)
A positive constant between 0 and 1 is multiplied to the original graph tp get the new graph.
Vertical compression is the transformation of a function f(x) such that the function is multiplied with a positive constant which is in between 0 and 1 or g(x) = k f(x), 0 < k < 1. If this positive constant is greater than 1, we get a vertical stretch.
So here the transformation is vertical compression.
Hence the transformation applied to the graph y = 72√x is vertical compression.
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Kimiko works at the drive-thru window in a fast-food restaurant. At the end of a 2-hour shift, the display at her window shows that she took an average of 1 minute and 20 seconds to serve each customer. How many customers came through the drive-thru during those 2 hours?
Answer:
90 customers
Step-by-step explanation:
Total shift time = 2 hours
1 hours = 60 minutes
Total shift time minutes = 2*60 minutes = 120 minutes
Average Time taken to serve 1 customer = 1 minute 20 seconds
lets convert 1 minute 20 seconds in fraction
60 seconds = 1 minute
20 seconds = 20/60 minutes = 1/3 minutes
Thus,
Average Time taken to serve 1 customer = 1 minute + 1/3 minutes = 4/3 minutes
Lets assume she served x customer in her 2 hour shift
total time taken to serve x customer =x*Average Time taken to serve 1 customer = 4x/3 minutes
Given that she the customers for her shift time which is 120 minutes
4x/3 minutes = 120 minutes
x = 120*3/4 = 90
Thus,
Kimiko served 90 customers and this is the number of customer which came through the drive thru during those 2 hours.
the area of the floor in a square room is $225$ square feet. the homeowners plan to cover the floor with rows of $6$-inch by $6$-inch tiles. how many tiles will be in each row?
Answer: There will be 30 tiles in each row.
Step-by-step explanation:
To find the number of tiles in each row, we need to determine the room's dimensions and the size of each tile. Given that the area of the square room is 225 square feet, we know that the room is a perfect square. Let's denote the length of one side of the square as "x" feet.
We can calculate the length of one side of the square by taking the square root of the area:
x = √225 = 15 feet
Since each tile is 6 inches by 6 inches, we need to convert the measurements to feet: 6 inches = 6/12 = 0.5 feet
To determine the number of tiles in each row, we divide the length of the side of the room by the length of each tile:
Number of tiles in each row = (Side length of the room) / (Length of each tile)
Number of tiles in each row = 15 feet / 0.5 feet = 30 tiles
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Write the fraction representing the total number of natural numbers in the collection of numbers -3, -2, -1, 0, 1, 2, 3, 4, 5. What fraction will it be for the whole numbers? What will be the fraction for negative integers? Find the sum of all these fractions?
Answer:
Sum of fractions [tex]=\frac{14}{9}[/tex]
Step-by-step explanation:
Given numbers are [tex]-3,-2,-1,0,1,2,3,4,5[/tex]
To find: fraction of the given numbers that are natural numbers, whole numbers, negative integers and sum of all these fractions
Solution:
Natural numbers are [tex]1,2,3,4,5[/tex]
Fraction of the given numbers that are natural numbers[tex]=\frac{5}{9}[/tex]
Whole numbers are [tex]0,1,2,3,4,5[/tex]
Fraction of the given numbers that are whole numbers[tex]=\frac{6}{9}=\frac{2}{3}[/tex]
Negative integers are [tex]-3,-2,-1[/tex]
Fraction of the given numbers that are negative integers[tex]=\frac{3}{9}=\frac{1}{3}[/tex]
Sum of fractions [tex]=\frac{5}{9}+\frac{2}{3}+\frac{1}{3}=\frac{5+6+3}{9}=\frac{14}{9}[/tex]
Convert 145km/h to m/s
PLEASE I WILL GIVE BRAINLIEST
Answer:
x intercept: (2,0), y intercepts: (0,4)
-2d - 15 = 3
Solve the equation. What does d equal?
Answer:
d= - 9
Step-by-step explanation:
-2d-15+15=3+15
-2d=18
-2d/-2 = 18/-2
d= -9
