Answer:
x=0.6, y=1.6
Step-by-step explanation:
Multiply the first equation by 2 and the second equation by 3, so we can cancel out the y terms:
4x+6y=12
21x-6y=3
Add these 2 equations together:
25x=15
x=0.6
Now, to solve for y, plug x back into any of the equations above:
2(0.6)+3y=6
1.2+3y=6
3y=4.8
y=1.6
Answer:
Below in bold.
Step-by-step explanation:
2x + 3y = 6 Multiply by 2:
7x – 2y = 1 Multiply by 3:
4x + 6y = 12
21x - 6y = 3 Adding:
25x = 15
x = 0.6. Substitute x = 0.6 into the first equation:
2*0.6 + 3y = 6
3y = 6 - 1.2 = 4.8
y = 1.6.
A cylindrical tin filled with oil has a diameter of 12cm and a height of 14cm. The oil is then poured in rectangular tin 16cm long and 11cm wide. What is the depth of the oil in the tin
The volume of cylindrical tin is 1584 \(cm^3\). The depth of the oil in the tin is 9cm.
\(V_1 =\) VOLUME OF CYLINDRICAL TIN
\(= \pi r^2 h\)
\(=\frac{22}{7}\) x 6 x 6 x 14
= 44 x 36
= 1584 \(cm^3\)
\(V_2 =\) VOLUME OF RECTANGULAR TIN
= lbh = 1584
= (16)(11)(h) = 1584
= 176h =1584
= h = 1584 / 176
= h = 9 cm
A cylinder is a three-dimensional shape that consists of a circular base and a curved surface that extends upward to meet at a point known as the apex. The volume of a cylinder is the amount of space occupied by the shape and is given by the formula V = πr²h, Once we have calculated the area of the circular base, we can multiply it by the height of the cylinder to get the volume.
To calculate the volume of a cylinder, we need to know its dimensions, which are the radius and height. The radius is the distance from the center of the circular base to the edge, while the height is the distance between the two circular bases.
To learn more about Volume of cylindrical visit here:
brainly.com/question/30981845
#SPJ4
i will give brainliest.The product of 5 and the sum of 12 and a certain number is 10. What is the number
Answer: x=-10
Step-by-step explanation:
5*(12+x)=10
Distribute
60+5x=10
Subtract(60)
5x=-50
x=-10
Hope it helps <3
Answer:
Heeyyy hope it helps
Step-by-step explanation:
Ok, so the product is the answer to a multiplication problem.
The product of 5 and the sum of a number(X) and 3 is
5(X + 3) = 12
5X + 15 = 12
5X = 12 - 15
5X = -3
X = -3/5
A group of hikers walks 3 miles east and then 1 mile north. After taking a break, they then hike 4 miles east to their final destination. What vector describes their hike from their starting position to their final destination? Let 1 unit represent 1 mile. The vector that describes their hike from their starting position to their final destination is
Answer:
The vector that describes their hike from their starting position to their final destination is \(\vec r = 7\,\hat{i}+1\,\hat{j}\,\,\,[mi]\).
Step-by-step explanation:
In this problem we assume that orthogonal axes coincide with the north and east. We proceed to translate each sentence from statement into vectorial equations:
(i) A group of hikers walks 3 miles east and then 1 mile north:
\(\vec r_{A} = 3\,\hat{i}+1\,\hat{j}\,\,\,[mi]\)
(ii) After taking a break, they then hike 4 miles east to their final destination:
\(\vec r_{B} = 4\,\hat{i}\,\,\,[mi]\)
The vector that describes their hike from their starting position to their final destination is the sum of the vectors deducted above. That is:
\(\vec r = \vec r_{A}+\vec r_{B}\) (1)
\(\vec r = (3\,\hat{i}+1\,\hat{j})+4\,\hat{i}\,\,\,[mi]\)
\(\vec r = 7\,\hat{i}+1\,\hat{j}\,\,\,[mi]\)
The vector that describes their hike from their starting position to their final destination is \(\vec r = 7\,\hat{i}+1\,\hat{j}\,\,\,[mi]\).
If nominal wages and prices are not flexible which of the following must be true when the economy has a severe recessionary gap? (A The aggregate demand curve is vertical (B The aggregate demand curve is horizontal (CThe short run aggregate supply curve is vertical DThe short run aggregate supply curve is upward sloping (E) The short run aggregate supply curve is hotizontal
If nominal wages and prices are not flexible, then the short-run aggregate supply curve is vertical.
This means that the economy is operating at full employment, and any increase in aggregate demand will not result in an increase in output but rather lead to higher prices.
In other words, the economy is supply-constrained, and there is no excess capacity to produce more output in response to an increase in demand.
In a severe recessionary gap, the economy is operating below its potential output, and there is excess capacity in the economy. However, if nominal wages and prices are not flexible, firms cannot adjust their prices downwards,
and wages cannot be reduced, leading to a situation where the short-run aggregate supply curve is vertical.
This results in a situation where any increase in aggregate demand will not lead to an increase in output, and the economy remains stuck in a recessionary gap with high unemployment and low output.
To know more about output click here
brainly.com/question/30149485
#SPJ11
Determine the length of the line segment shown. line segment from negative 5 comma 5 to 3 comma negative 1 6 units 8 units 10 units 36 units
fist gets brainlyist and 35 points please help asap
The length of the line segment with points (-5, 5) (3, -1) is 10 units
How to find length of lineThe length of line in an ordered pair is calculated using the formula
d = √{(x₂ - x₁)² + (y₂ - y₁)²}
where
d = distance between the points
x₂ and x₁ = points in x coordinates
y₂ and y₁ = points in y coordinates
distance between points (-5, 5) and (3, -1) is calculated as follows
d = √{(x₂ - x₁)² + (y₂ - y₁)²}
d =√{(-5 - 3)² + (5 - -1)²}
d =√{64 + 36}
d = √100
d = 10 units
Learn more about length of line segment here:
https://brainly.com/question/24778489
#SPJ1
7. Use the Composite Trapezoidal rule with the indicated values of \( n \) to approximate the following integrals. (1 mark) (a) \( \int_{1}^{2} x \ln x d x, \quad n=4 \) (b) \( \int_{2}^{2} x^{3} e^{x
The Composite Trapezoidal rule is used to approximate the given integrals. In part (a), the integral \(\( \int_{1}^{2} x \ln x \, dx \)\) is approximated using \(\( n = 4 \)\)subintervals. In part (b), the integral\(\( \int_{2}^{2} x^{3} e^{x} \, dx \)\) is given with incorrect limits, so it cannot be evaluated.
To approximate \(\( \int_{1}^{2} x \ln x \, dx \)\) using the Composite Trapezoidal rule, we divide the interval \(\([1, 2]\) into \( n = 4 \)\) subintervals. The step size, \(\( h \)\), is calculated as\(\( h = \frac{b-a}{n} = \frac{2-1}{4} = \frac{1}{4} \)\). Then, we evaluate the function \(\( x \ln x \)\)at the endpoints of each subinterval and sum the areas of the trapezoids formed. The approximation formula for the Composite Trapezoidal rule is: \(\[\int_{a}^{b} f(x) \, dx \approx \frac{h}{2} \left[ f(a) + 2\sum_{i=1}^{n-1} f(x_i) + f(b) \right]\]\)
Using this formula, we can calculate the approximation for the given integral. The limits of the integral \(\( \int_{2}^{2} x^{3} e^{x} \, dx \)\) are given as \(\( 2 \)\) to 2 which indicates an interval of zero length. In this case, the integral cannot be evaluated since there is no interval over which to integrate.
Learn more about integrals here:
https://brainly.com/question/31059545
#SPJ11
Help pleaseeeee. ill give 10 points
a sample of the students at a middle school is selected by writing the name of every student in the school on a slip of paper and putting all the names into a bin. the bin is then rotated to mix the slips of paper and 25 names are drawn without looking. if the bin is rotated after every draw, which kind of sampling method is this?
a. non-random sampling
b. simple random sampling
c. stratified random sampling
d. systematic random sampling
Answer:B
Step-by-step explanation: it's because you're choosing random peoplepeoplepeople
Spencer needs 2 gallons of paint to create a mural.
He has gallon of yellow paint and į gallon of blue paint.
Drag amounts of paint Spencer can add to the paint he already has to make exactly 2
gallons of paint
Answer:
I don't exactly know how to answer this, maybe I need more information. But if not, then all he can do is add one gallon of yellow paint and one gallon of blue paint. If that's all the paint he has, that is all he can add. Is there a diagram that's supposed to go with this? If not, hope I answered your quesiton.
question 17 options: $3,000 to have the vehicle restored $9,000 to have the vehicle restored $6,000 to have the vehicle restored $11,000 to have the vehicle restored
Cybil would be financially better off by $ 3000 to have the vehicle restored.
Cybill is either going to sell the car for $ 10000
Or he can have it restored and then sell it for 22000
The restoration will cost him $9000
Incremental revenue = selling price after restoration - selling price without restoration
Incremental revenue = $ 22000 - 10000 = $ 12000
Incremental costs = 9000
Incremental income = 12000 - 9000 = 3000
Therefore, Cybil would be financially better off by $ 3000 to have the vehicle restored.
To learn more about incremental revenue refer here
https://brainly.com/question/25811981
#SPJ4
On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other U.S. public utilities compare to Tulsa's rate? The data shown below ($) contains the rate per 5 CCF of residential water for 42 randomly selected U.S. cities.10.38 9.08 11.7 6.4 12.32 14.43 15.4610.02 14.4 16.08 17.5 19.08 17.88 12.7516.7 17.25 15.54 14.7 18.81 17.89 14.818.32 15.95 26.75 22.22 22.66 20.88 23.3518.95 23.6 19.16 23.65 27.7 26.95 27.0426.89 24.58 37.76 26.41 38.91 29.36 41.55(a)Formulate hypotheses that can be used to determine whether the population mean rate per 5 CCF of residential water charged by U.S. public utilities differs from the $21.62 rate charged by Tulsa. (Enter != for ≠ as needed.)H0:Ha:(b)What is the test statistic for your hypothesis test in part (a)? (Round your answer to three decimal places.)What is the p-value for your hypothesis test in part (a)? (Round your answer to four decimal places.)(c)At α = 0.05, can your null hypothesis be rejected? What is your conclusion?Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.(d)Repeat the preceding hypothesis test using the critical value approach.State the null and alternative hypotheses. (Enter != for ≠ as needed.)H0:Ha:Find the value of the test statistic. (Round your answer to three decimal places.)State the critical values for the rejection rule. Useα = 0.05.(Round your answers to three decimal places. If the test is one-tailed, enter NONE for the unused tail.)test statistic≤test statistic≥State your conclusion.Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.
The null hypothesis for the data will be 21.62 and the alternate hypothesis is 2.02 for the p-value for the data is 0.2253 .
The charge at which anything happens is referred to as the velocity at which it happens.
The required details for mean rate :
(a) H0: µ = 21.62
Ha: µ ≠ 21.62
(b) t = -1.231
p-value = 0.2253
(c) Stop rejecting H0 right now. No longer significantly different from the domestic water tariff in Tulsa, the suggested household water charge per five CCF for the entire USA.
(d) H0: µ = 21.62
Ha: µ ≠ 21.62
t = -1.231
check statistic ≥ 2.020
Don't dismiss H0 any longer. The suggested five CCF residential water charge for the entirety of the USA is no longer significantly different from the five CCF residential water tariff in Tulsa.
The P-value is higher at 0.05, the level of significance. The impact in this instance is negligible. The attempt to reject the null hypothesis failed.
The conclusion is that there is insufficient statistical support to determine whether other American cities have a different mortality rate than Tulsa.
The crucial values for t at this level of significance are t=2.019.
Given that the statistic t = -1.15 is inside the acceptance range in this case, the null hypothesis is not disproved.
to learn more about null hypothesis visit:
https://brainly.com/question/16261813
#SPJ4
harper is a chef for a catering company. the 96 guests at a banquet have a choice of chicken or fish. Harper Prepared three times as many chicken dinners as fish dinners
The number of fishes and chicken are 24 and 72 respectively
How to solve the number of fish and chicken?From the question, we have the following parameters that can be used in our computation:
Number of guests = 96
Chicken = 3 times as many a fish
Using the following representations
x = the number of fishy = the number of chickenWhen the statements are interpreted, we have the system of equations to be
y = 3x
x + y = 96
Substitute y = 3x in x + y = 96
This gives
x + 3x = 96
Evaluate the like terms
4x = 96
Divide by 4
x = 24
Recall that
y = 3x
So, we have
y = 3 * 24
y = 72
Hence, the number of chicken is 72
Read more about system of equations at
https://brainly.com/question/13729904
#SPJ1
please help me i need it
Answer:
-27
Step-by-step explanation:
Draw a big X over the equal sign, then cross multiply the terms to get:
6(p) = 9(p+9)
Then you want to get p by itself.
Multiply the 9 out:6p = 9p+81Subtract 9p from both sides:-3p = 81Divide -3 both sides to get p by itself:p = -27If h(x)=x^2/f(x) and f(3) = 2 and f'(3) = 4, then h' (3) = -12.
true
false
Answer:
FALSE.
Step-by-step explanation:
Given:
h(x)=x^2/f(x) f(3) = 2 f'(3) = 4To Find:
Whether h'(3) = -12 or not.Formula used:
For a function y = f(x)/g(x), the differentiation of y is defined as y' = [f'(x)*g(x) - g'(x)*f(x)]/(g(x))^2. This is know as quotient rule of differentiation.Using the above formula, we have
h'(x) = [2x*f(x) - f'(x)*x^2]/(f(x))^2
So, h'(3) = [2*3*2 - 4*(3)^2]/(2)^2
h'(3) = (12-36)/4
h'(3) = -24/4 = -6
So, h'(3) = -6 and not -12.
So, the given value is FALSE.
The Integral ∫03∫1eyg(X,Y)Dxdy Can Be Written As: Select One: ∫1e3∫Lnx3g(X,Y)Dydx None Of The Others ∫Lnx3∫1e3g(X,Y)Dxdy∫3e3∫Lnx1g(X,Y)Dydx∫3e3∫1lnxg(X,Y)Dydx
The integral ∫[0,3]∫[1,e^3] eyg(x,y) dx dy can be written as:
∫[1,e^3] ∫[0,3] ln(x^3)g(x,y) dy dx
Therefore, the correct answer is:
∫[1,e^3] ∫[0,3] ln(x^3)g(x,y) dy dx
The integral ∫[0,3]∫[1,e^3] eyg(x,y) dx dy represents a double integral over the region where x ranges from 0 to 3 and y ranges from 1 to e^3.
To evaluate this integral, we can first integrate with respect to x and then with respect to y.
∫[0,3]∫[1,e^3] eyg(x,y) dx dy
Integrating with respect to x first:
∫[0,3] ( ∫[1,e^3] eyg(x,y) dx ) dy
Now, integrating the inner integral with respect to x:
∫[0,3] [ y ∫[1,e^3] g(x,y) dx ] dy
Finally, integrating the remaining expression with respect to y:
∫[0,3] [ y * (integral of g(x,y) with respect to x from 1 to e^3) ] dy
The limits of integration for x are fixed as 1 to e^3, and y ranges from 0 to 3.
Therefore, the correct representation of the integral is:
∫[1,e^3] ∫[0,3] g(x,y) dy dx
Learn more about Integral from
https://brainly.com/question/30094386
#SPJ11
A reading teacher recorded the number of pages read in an hour by each of her
students. The numbers are shown below.
44, 49, 39, 43, 50, 44, 45, 49, 51
For this data, which summary statistic is NOT correct?
1.The minimum is 39.
2.The median is 45.
3.The lower quartile is 44.
4.The maximum is 51.
For Incap T-shirts, the cost of producing x t-shirts can be expressed as C=0.6x2+0.52x+3200.
The revenue they gain can be expressed as R=100x. What is the maximum profit (revenue subtract cost) they can make? In other words, what is the maximum value of R−C? Express your answer to 2 significant figures.
The maximum profit is $923.44 which is gotten when 83 T shirts are produced.
Given the function:
Profit = Revenue - Cost
Profit (P) = 100x - (0.6x²+0.52x+3200)
P = -0.6x² + 99.48x - 3200
The maximum profit is at dP/dx = 0, hence:
dP/dx = -1.2x + 99.48
0 = -1.2x + 99.48
1.2x = 99.48
x = 82.9
x ≅ 83
The maximum profit is at x = 83, hence:
P = -0.6(83)² + 99.48(83) - 3200
P = 923.44
Find out more at: https://brainly.com/question/19682087
the top option, "meat lovers", received 12 votes. Was this majority of the votes?
Answer:
Step-by-step explanation:
if the number of votes is 25, 12 is not majority
but if the number is 23 then 12 is majority
Nancy's morning routine involves getting dressed, eating breakfast, making her bed, and driving to work. Nancy spends ⅓ of the total time in the morning getting dressed, 10 minutes eating breakfast, 5 minutes making her bed, and the remaining time driving to work. If Nancy spends 35 ½ minutes getting dressed, eating breakfast, and making her bed, how long is her drive to work?
Answer: 26 minutes
Step-by-step explanation:
Assume that the total time spent in the morning which includes getting dressed, eating breakfast, making her bed, and driving to work is x.
Time getting dressed = ¹/₃x
Eating breakfast = 10 mins
Making bed = 5 mins
¹/₃x + 10 + 5 = 35 ½
¹/₃x + 15 = 35 ½
¹/₃x = 35 ½ - 15
¹/₃x = 20 ½
x = 20 ½ / ¹/₃
= 61.5 minutes
Total morning routine is is 61.5 mins
Time taken to drive to work is;
= 61.5 - 35 ½
= 26 minutes
How many different ways can you have 55¢ in change using only quarters, dimes and nickels?
A. 1
B. 5
C. 11
D. 15
Answer: 11 times
Step-by-step explanation:
Have a wonderful day!
Please solve the math problem... I will mark you brainliest
Answer:
the answer is 140
........
Simplify the expression by combining like terms.
12d−34d+3f−2f
Enter your answer as an expression, like this: 42x+53
Answer:
Hi... Your answer is
-22d+f
Write the equation of the line of best fit using the slope-intercept formula y = mx + b. Show all your work, including the points used to determine the slope and how the equation was determined.
The equation of the line of best fit is y = 1.7x - 58
How to determine the equation?We start by drawing the line of best fit (see attachment)
From the attached graph, we have the following points
(x, y) = (70, 75) and (61, 60)
The slope (m) is:
m = (y2 - y1)/(x2 - x1)
This gives
m = (60 - 75)/(61 - 70)
Evaluate
m = 1.7
The line of best fit is then calculated as:
y = m(x - x1) + y1
This gives
y = 1.7(x - 70) + 61
This gives
y = 1.7x - 119 + 61
Evaluate
y = 1.7x - 58
Hence, the equation of the line of best fit is y = 1.7x - 58
Read more about line of best fit at:
https://brainly.com/question/14279419
#SPJ1
Help me with this math problem! It is on dialations!
I need an answer!
Answer:
1/2
Step-by-step explanation:
It's a reduction; the scale factor is 1/3. It's a reduction; the scale factor is 1/2.
URGENT!!!!
An ocicat eats 3/5 of a pound of food daily. How many ocicats can a 19 1/2 -pound bag of food feed for one week? Explain your solution.
Answer:
13 ocicats
Step-by-step explanation:
Here, we are told that an Ocicat eats 3/5 pounds of food per day.
Now, we have a bag of 19 1/2 pound of food and we want to know the number of ocicats this will feed
What we just need to do is to divide the weight of the bag by the amount in pounds that can feed a single ocicat
Thus, we have;
19 1/2 divided by 3/5
= 39/5 divided by 3/5
= 39/5 * 5/3
= 13 Ocicats
A submarine is only allowed to change its depth be Racing toward the surface in 60 meter stages. If the submarine starts off at 340 meters below sea level, what is its depth after 4 stages of rising to surface
Answer:
\(Depth = 100m\)
Step-by-step explanation:
Given
Initial Level = 340 m
Number of stages = 4
Difference in each stage = 60 m
Required
Determine the depth of the submarine after 4 stages
First, we have to calculate the total distance moved towards the surface of the sea;
This is calculated as
\(Total\ Distance = Number\ of\ Stages * Difference\ in\ each\ stage\)
\(Total\ Distance = 4 * 60m\)
\(Total\ Distance = 240m\)
This implies that the submarine moved a total distance of 240 metres;
It;'s new depth is calculated as follows;
\(Depth = Initial\ Depth - Total\ Distance\)
\(Depth = 340m - 240m\)
\(Depth = 100m\)
Hence, its new depth after 4 stages of rising is 100m
A rectangle has an area of 182 square feet and a base of 13 feet. What is the height?
Answer:
14 feet
Step-by-step explanation:
Area= base x height
Height=area/base
182/13=14
Mikael runs with a speed of 3 m/s for 45 seconds. How far does Mikael run?
Answer:
135 meters
Step-by-step explanation:
What is the equation of this line?
y= −3/2x
y= −2/3x
y= 3/2x
y= 2/3x
Plz Help my grade depends on this
Answer:
C hope it helppppssssss
y= 3/2x
Step-by-step explanation:
BTW the right angle triangle has the measurements of 17,8 & 15 - can't post the answer to that question.
Hope this helps!
A number went into this machine and 36 came out. What number went in?
Answer:
6? If its a squared machine than it is 6 bc 6 squared is 36. sorry if it is wrong.
Step-by-step explanation:
please answer fast for brainliest
what is the solution set for the inequality?
Answer: F
Step-by-step explanation: I think....