42-3x+22x+1+9x-3=180
Answers
Related Questions
Make Z the subject x(y+z) + 5/a — 2=0
Answers
Answer:
above is the solution to the question, ,pls that is a negative sign
How can I Convert 200 inches to meters.
Answers
For converting inches to meters, divide by 39. 3700787 or multiply the inch value by 0.0254. Hence, 1 meter is equivalent to 39.3701 inches. For Example, to find out how many meters are there in 36 inches, multiply 36 by 0.0254 to obtain the value of 0.9144.
Answer:
5.08 meters
Step-by-step explanation:
An inch equals to 0.0254 meters. This can be written mathematically as:
\(\displaystyle{\sf{inches} = 0.0254 \ \, \sf{meters}}\)
Since we wants to find 200 inches. We will be multiplying both sides by 200:
\(\displaystyle{\sf{inches} \times 200 = 0.0254 \ \, \sf{meters} \times 200}\\\\\displaystyle{200 \ \, \sf{inches} = 0.0254 \ \, \sf{meters} \times 200}\\\\\displaystyle{200 \ \, \sf{inches} = 5.08 \ \, \sf{meters}}\)
Therefore, 200 inches will equal to 5.08 meters.
10 times what equals 5
Answers
Answer:
10 x .5 = 5
OR
10 x 1/2 = 5
what is the role of the term average in statistics
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The term "average" plays a fundamental role in statistics. It refers to a measure of central tendency that summarizes a set of data by representing a typical or representative value.
Calculation for the average of a set of numbers, follow these steps:
Add up all the values in the data set.
Division of the sum by the total number of values.
For example, consider the following data set: 10, 15, 20, 25, 30.
Sum all the values: 10 + 15 + 20 + 25 + 30 = 100.
Divide the sum by the total number of values: 100 / 5 = 20.
In this case, the average of the data set is 20.
The term average provides a concise summary of a data set by representing a typical value. It is calculated by adding up all the values and dividing the sum by the total number of values. The average is a fundamental statistical measure that helps in understanding and analyzing data in various fields such as economics, education, research, and many others.
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A recipe for a dozen iced cookies calls for 2 1/4 cups flour. Which can be used to determine the amount of flour needed to make 32 cookies?
Answers
Answer:
You can form a proportion to solve this problem.
Step-by-step explanation:
The proportion can look like this (there are other ways to write an equal proportion but this is just one of the ways you could go about it :)
\(\frac{2.25}{12}\)=\(\frac{x}{32}\)
12x=72
x=6 cups of flour
Hope this helps!! :)
Answer:
You can form a proportion to solve this problem.
Step-by-step explanation:
The proportion can look like this (there are other ways to write an equal proportion but this is just one of the ways you could go about it :)
=
12x=72
x=6 cups of flour
Surface area and volume of prisms
Answers
Answer:
248.75 cm^2
Step-by-step explanation:
20x3.5=70x2=140
20x2.5=50x2=100
2.5x3.5=8.75 (since there is 2, don't divide by 2 not multiply by 2)
140
100
+ 8.75
248.75
what step is needed when constructing a circle circumscribed about a triangle?
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Draw the circle with the center at the intersection of the perpendicular bisectors and the radius equal to the distance found in step 4.
When constructing a circle circumscribed about a triangle, the following step is needed:
Identify the three vertices of the triangle.
Let's say the triangle has vertices A, B, and C.
Find the perpendicular bisectors of the triangle's sides.
For each side of the triangle, construct a line that is perpendicular to the side and passes through its midpoint.
Locate the point of intersection of the perpendicular bisectors.
The point where all three perpendicular bisectors intersect is the center of the circumscribed circle.
Measure the distance from the center to any of the triangle's vertices.
This distance is the radius of the circumscribed circle.
By following these steps, you can construct a circle that passes through all three vertices of the triangle. This circle is known as the circumscribed circle or circumcircle of the triangle. It is unique to each triangle and provides a useful geometric property that can be applied in various mathematical and geometric contexts.
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A cube has a surface area of 6. What's the volume?
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Answer:
18 Superfícies
Step-by-step explanation:
A Traveller changed EC $1800 to Barbados currency. Calculate the amount received
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Answer:
1350 bajan dollar
Step-by-step explanation:
The exchange rate of EC dollar to Barbados currency is
1 EC dollar = 0.75 Barbados currency
EC $1800 in Barbados currency = EC $1800 x 0.75 = 1350 bajan dollar
A friend of yours, a senior, took the Graduate Record Exam in September and scored in the 99th percentile. In February, your friend took the same exam over again. This time your friend scored in the 90th percentile. As a research methods student, you told your friend that his/her lowered score was most likely due to:
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His/her lowered score was most likely due to statistical regression.
How to determine the reason?The missing options in the question are:
A. compensation rivalry B. Demoralization C. Differential selection
D. Testing E. Statistical regression
From the question, we have:
September = 99th percentileFebruary = 90th percentileA change (whether higher or lower) in the score is caused by statistical regression.
This is so because several variables could attribute to the change in the score.
The relationship between these variables is referred to as statistical regression
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2. If m angle EFD = 75°, then m angle JAB = ??
C
B
A
1.
2.
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Answer:
If m angle EFD = 75°, then m angle JAB = ??
C
B
A
1.
2.
which factors will influence the margin of error when the population standard deviation is unknown? check all that apply.
Answers
We need to know about margin of error to solve the problem. The factors that influence margin of error are confidence level and sample size.
Margin of error is a statistic expressing the amount of random sampling error in the results of a survey. The larger the margin of error, the less confidence one should have that a poll result will reflect the result of a census of the entire population. Margin of error is influenced by three factors, confidence level, sample size and population standard deviation. In absence of population standard deviation, the margin of error is influenced by confidence level and sample size.
Therefore the margin of error is influenced by confidence level and sample size.
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A car depreciates 5% every year. What is the multiplier?
Answers
Answer:
0 votes
Answer:27000Step-by-step explanation:interest= principal×rate×time÷ 100=270000×5×2÷100=27000
Answer:
0.95
Step-by-step explanation:
A depreciation of 5% from the original 100% is
100% - 5% = 95% = \(\frac{95}{100}\) = 0.95
Rebecca bought 1.5 pounds of grapes for $2.18 per pound. How much did the grapes cost?
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Answer:
$3.27
Step-by-step explanation:
Number 11 please write the equation for the standard function use transformations and critical points of the graph
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Solution
- The formula for the vertex form of a quadratic equation is given below:
\(\begin{gathered} y=a(x-h)^2+k \\ where, \\ (h,k)\text{ is the coordinate of the vertex} \end{gathered}\)- The vertex of the quadratic equation is depicted below:
- Thus, the vertex of the quadratic graph is V(2, -2).
- The equation of the graph becomes:
\(y=a(x-2)-2\)- To find the value of "a", we apply the coordinate given (-1, 6). This is done below:
\(\begin{gathered} when\text{ }x=-1,y=6 \\ \\ 6=a(-1-2)^2-2 \\ 6=a(-3)^2-2 \\ 6=9a-2 \\ \text{ Add 2 to both sides} \\ 9a=8 \\ \text{ Divide both sides by -3} \\ \\ a=\frac{8}{9} \end{gathered}\)Final answer
The equation is:
\(y=\frac{8}{9}(x-2)^2-2\)
Find two consecutive numbers such that sum of four times the first and triple the second is 157. (Linear Function)
Answers
Step-by-step explanation:
Set up a system of equations,
Consective numbers appear before and after so we need two number such that
\(x + 1 = y\)
or
\(x - y = - 1\)
Likewise, we also know that
\(4x + 3y = 157\)
Let multiply the top equation by 3.
We get
\(3x - 3y = - 3\)
Then we add the bottom equation to that
\(4x + 3y = 157\)
\(7x = 154\)
\(x = 22\)
Then we plug in x for the original equation,
\(22 + 1 = 23\)
So the two numbers are 22,23.
What is the solution to the system of equations? "-6x2/5y=8" 1/2x+3y=29
(10, –2)
(10, 2)
(2, 10)
(–2, 10)
Answers
The answer choice which represents a solution to the system of equations is; (–2, 10).
Which answer choice is a solution to the systems of equations?The system of equations as given in the task content is;
-6x - (2/5)y = 8
(1/2)x +3y = 29
Hence, by making x subject in equation 1 and substitution; we have;
x = (-0.4y -8)/6
Hence; (0.4y -8)/12 + 3y = 29.
(0.4y -8) + 36y = 348
35.6y = 356
y = 10
and x = (-0.4(10) -8)/6 = -2.
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find the point on the surface 6x=y2+z2 so that its tangent plane is parallel to
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To find the point on the surface 6x = y^2 + z^2 where its tangent plane is parallel to a given plane, we need to find a point on the surface and determine the normal vector of the surface at that point.
Then, we can compare the normal vector of the surface to the normal vector of the given plane to check if they are parallel.
Let's first find a point on the surface by substituting a value for either y or z and solving for x. Let's choose y = 0:
6x = 0^2 + z^2
6x = z^2
x = z^2/6
So, one point on the surface is (z^2/6, 0, z).
To find the normal vector of the surface at this point, we can calculate the partial derivatives with respect to x, y, and z:
∂/∂x (6x) = 6
∂/∂y (y^2 + z^2) = 0
∂/∂z (y^2 + z^2) = 2z
The normal vector is then N = (6, 0, 2z) = (6, 0, 2z) / ||(6, 0, 2z)||, where ||N|| represents the magnitude of N.
To determine if the tangent plane is parallel to a given plane, we compare the normal vector of the surface to the normal vector of the given plane. If they are parallel, their direction vectors should be proportional.
If the given plane is parallel to the xy-plane and has a normal vector N_1 = (0, 0, 1), we can compare it to the normal vector of the surface. In this case, we see that the z-component of N (2z) is not proportional to the z-component of N_1 (1). Therefore, the tangent plane of the surface at the chosen point is not parallel to the given plane.
To find a point on the surface where its tangent plane is parallel to the given plane, we would need to choose a different point on the surface such that the normal vector of the surface at that point is parallel to the given plane's normal vector.
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e) Find the total differential of the following function: z = x²ln(x³ + y²)
(f) Find the total derivative with respect to x of the following function:
Z= x²-1/xy
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(e) To find the total differential of the function z = x²ln(x³ + y²):
We have z = x²ln(x³ + y²)
Taking the differential with respect to x, we get:
dz = d(x²ln(x³ + y²))
= 2xln(x³ + y²)dx + x²(1/(x³ + y²))(3x² + 2y²)dx
Similarly, taking the differential with respect to y, we get:
dz = x²(1/(x³ + y²))(2y)dy
The total differential of the function z = x²ln(x³ + y²) is given by:
dz = 2xln(x³ + y²)dx + x²(1/(x³ + y²))(3x² + 2y²)dx + x²(1/(x³ + y²))(2y)dy
(f) To find the total derivative with respect to x of the function Z = x² - 1/(xy):
We have Z = x² - 1/(xy)
Taking the derivative with respect to x, we get:
dZ/dx = d(x²)/dx - d(1/(xy))/dx
= 2x - (-1/(x²y))(-y/x²)
= 2x + 1/(x²y)
The total derivative with respect to x of the function Z = x² - 1/(xy) is given by:
dZ/dx = 2x + 1/(x²y)
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which of the following expressions matches the statement above ?
A. 3×6-h
B. 3×(6-h)
C. 3×(h-6)
D. 3×h-6
Answers
Answer:
C. 3×(h-6)
Step-by-step explanation:
Sana makatulong
the data are a random sample from the population of interest. the sample size is less than 10% of the population size. the population distribution is approximately normal. np > 10 and n(1 - p) > 10 more than one condition is violated.
Answers
From the given data, we can see that only one condition is violated, which is the sample size being less than 10% of the population size. The other conditions, such as the population distribution being approximately normal, np > 10, and n(1-p) > 10, are all satisfied. Therefore, the statement "more than one condition is violated" is incorrect.
Only one condition is violated in the given data, which is the sample size being less than 10% of the population size. The other conditions are all satisfied and do not violate any of the conditions for a representative sample.
It is important to note that in order for a sample to be representative of the population, the sample size should be at least 10% of the population size. If the sample size is less than 10% of the population size, the sample may not accurately represent the population and the results may be biased.
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can someone type this for my friends brother? He would be happy
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The Solution:
The Multiples of 6:
\(6=(6\times1),12=(6\times2),18=(6\times3),24=(6\times4),\ldots\)The Multiples of 4:
\(4=(4\times1),8=(4\times2),12=(4\times3),16=(4\times4),\ldots\)The smallest number of the two lists is 12, so the Lowest Common Multiple of 6 and 4 is 12
if you can type 55 words in 20 seconds how long would it take to type 1,007 words
Answers
Answer:
2769.25Secound...........
Which question below is a Statistical Question?
A. How many students have a cell phone?
B. How many months are in a year?
C. How tall are the students in your class?
D. What is for lunch today?
Answers
Answer:
C
Step-by-step explanation:
I chose C because it more detailed than the rest of the question. Everyone already knows how many months are in a year. What is for lunch today is just a normal question. How many students have a cell phone was not really detailed but it would have been different if they said "How many percentage of college students in math class uses cell phones.
Hope this helps:)
Challenge The price of Stock A at 9 AM. was $14.62. Since then, the price has been increasing at the rate of $0.13 each hour. At noon the price of Stock B was $15.37. It begins to decrease at the rate
of $0.15 each hour. If the two rates continue, in how many hours will the prices of the two stocks be the same?
Answers
After 2.68 hours the price of both stocks be the same.
What is stock?A stock denotes an investment to the public company. The term stock is used to confirm the certificate of all shareholders who invested for a large company.
What is stock price?The word stock price refers the current value or market price. price can be dropped or extended or remain the same.
Given, The price of stock A at 9AM =$14.62
since then, this price start increasing $0.13 per hour
At noon the price of Stock B =$15.37
since then, this price start decreasing $0.15 per hour
let, it takes x hours that the prices of both stocks become equal.
after x hour the stock A become $14.62+$0.13x
after x hours the stock B become $15.37-$0.15x
as per given statement, 14.62+0.13x = 15.37-0.15x
solving equation, we get x=2.68
hence, after 2.68 hours the price of both stocks be the same.
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Answer:
1 2/7 hours (after noon)
Step-by-step explanation:
You want to know how long after noon two stocks will have the same price if A was $14.62 at 9 a.m. and increasing $0.13 per hour, while B was $15.37 at noon and decreasing $0.15 per hour.
SetupIf x represents hours after midnight, the price of stock A can be described by ...
A = 14.62 +0.13(x -9)
and the price of stock B can be described by ...
B = 15.37 -0.15(x -12)
SolutionThe two prices will be the same when ...
A = B
14.62 +0.13(x -9) = 15.37 -0.15x -12 . . . . . substitute for A and B
0.13x +13.45 = -0.15x +17.17
0.28x = 3.72 . . . . . . . . . add 0.15x-13.45
x = 3.72/0.28 = 13 2/7 . . . . . . hours after midnight
To find the number of hours after noon, we need to subtract 12 from this number. 13 2/7 -12 = 1 2/7
The two stocks will be the same price after 1 2/7 hours.
__
Additional comment
That's about 1:17 p.m.
The wording "in how many hours" is a bit ambiguous, since there are two different time references given in the problem. We assume we want hours after the later time reference, noon.
A bag contains 40 red and green marbles. The ratio of red marbles to
green marbles is 3 to 1. How many green marbles are in the bag?
A. 10
B. 15
C. 20
D. 30
Answers
Answer:
39/40
Step-by-step explanation:
Since 39 out of 40 marbles are green, the probability of randomly choosing green is 39/40.
However, the probability becomes 100% when you look into the bag and choose a green marble. (Unless you are blind or unable to distinguish blue from green, in which case the probability remains 39/40.)
can someone help pls
Answers
Answer:
23.2
12
..........................................
Evaluate the function for the given value of x, and write the input, x, and output, f(x), as an
ordered pair. Use fractions if necessary; no decimals. *
(25 Points)
f (x) = 17x + 3 for x = 4
Answers
Answer:
71
Step-by-step explanation:
Given the function f(x) = 17x+3 for x = 4
To get the function at x = 4, we will simply substitute x = 4 into the function as shown;
f(4) = 17(4)+3
f(4) = 68+3
f(4) = 71
Hence the value of the function for the given value of x is f(4) = 71
an online subscription service has calculated the ratio of expired subscriptions to active subscriptions and found that the ratio is 0.42 to 1. what does this ratio mean?
Answers
The given ratio of 0.42 to 1 means that for every 1 active subscription, there are 0.42 expired subscriptions.
What is a ratio?
The ratio is a comparison of two quantities that is expressed as a fraction. It is used to compare two values in mathematics. It is possible to write the ratio between a and b as:
a : b or a/b.
What does a ratio of 0.42 to 1 mean? The ratio of 0.42 to 1 means that there are 0.42 expired subscriptions for every 1 active subscription. It is worth noting that the ratio is less than 1, indicating that there are fewer expired subscriptions than active subscriptions.
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A tiny but horrible alien is standing at the top of the Eiffel Tower (which is 324324324 meters tall) and threatening to destroy the city of Paris!
A Men In Black agent is standing at ground level, 545454 meters across the Eiffel square, aiming his laser gun at the alien.
At what angle, in degrees, should the agent shoot his laser gun?
Round your final answer to the nearest tenth.
Answers
Answer:
89.9°
Step-by-step explanation:
h=324324324 meters
x=545454 meters
θ=tan⁻¹(h/x)=89.9°
Hope, this helps you.
Answer:
80.5 degrees - khan academy
Step-by-step explanation:
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