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MATH SOLVE
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Use the substitution method to solve the system of equations.Choose the correct ordered pair.
General
4 months ago
In the year 2000 the population of Mexico was about 100 million, and it was growing by 1.53% per year. At this growth rate, the function f(x) = 100(1.0153)^x gives the population, in millions, x years after 2000. Using this model, in what year would the population reach 118 million? Round your answer to the nearest year.
General
4 months ago
Tell whether the lines for.the pair of equations are parallel, perpendicular, or neither y = - 4/5x + 3; 4x - 5y = -15
General
4 months ago
What is the difference between an observational study and an experiment? Choose the correct answer below. A. In an experiment, a treatment is applied to an entire population and responses are observed. In an observational study, a researcher measures characteristics of interest of an entire population but does not change existing conditions. B. In an experiment, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. In an observational study, a treatment is applied to part of a population and responses are observed. C. In an experiment, a researcher measures characteristics of interest of an entire population but does not change existing conditions. In an observational study, a treatment is applied to an entire population and responses are observed. D. In an experiment, a treatment is applied to part of a population and responses are observed. In an observational study, a researcher measures characteristics of interest of a part of a population but does not change existing conditions.
General
4 months ago
Two groups of workers are painting a bridge in the bay. The first group is responsible for painting the north side of the bridge, and the second group is responsible for painting the south side of the bridge. The first group has already painted 2 kilometers of the bridge and is painting 2 additional kilometers per day. The second group has already painted 5 kilometers of the bridge and is painting 1 additional kilometer per day. When the two groups have painted the same amount of the bridge, how much of the bridge will they each have painted?
General
4 months ago
Help Me Please ! This is so confusing .♀️
General
4 months ago
3w - 4z = 8 what is w
General
4 months ago
to determine a student's grade, a teacher throws out the lowest grade obtained on 5 tests, averages the remaining grades, and round up to the nearest interger. If Betty scored 75,90,88,72,and86 on her tests, what grade will she receive
General
4 months ago
The equation of the graphed line is 2x – 3y = 12.What is the x-intercept of the graph?-4. -3/2. 2/3. 6
General
4 months ago
A store sells shirts to the public at one pricing scale and wholesale at another pricing scale.
General
4 months ago
Richard Miyashiro purchased a condominium and obtained a 20-year loan of $196,000 at an annual interest rate of 8.30%. (Round your answers to the nearest cent.)(a) What is the mortgage payment? $(b) What is the total of the payments over the life of the loan? $(c) Find the amount of interest paid on the mortgage loan over the 20 years. $
General
4 months ago
Each of the dinners served at a banquet was either chicken or beef or fish. The ratio of the number of chicken dinners to the number of beef dinners to the number of fish dinners served at the banquet was 7:5:2, respectively. If there were more than 5 fish dinners served at the banquet, what was the total number of dinners served at the banquet?
General
4 months ago
The work of a student to find the dimensions of a rectangle of area 8 + 12x and width 4 is shown below:Step 1: 8 + 12xStep 2: 4(2) + 4x(2)Step 3: 4(4 + 8x)Step 4: Dimensions of the rectangle are 4 and 4 + 8xIn which step did the student first make an error and what is the correct step?Step 2; 4(2) + 4x(2)Step 2; 4(2) + 4(3x)Step 3; 4+ (4 + 8x)Step 3; 4 + (48X)
General
4 months ago
Find the equilibrium solutions of the ordinary differential equationy' = x^2 cos^3 yWhich of these solutions are stable?
General
4 months ago
Each student in a course needs to submit 3 lab assignments and take 2 tests. Design a program to do the following. Ask the user to enter 3 lab scores and 2 test scores. Calculate and display the lab average and the test average. Also calculate and display the course grade, which equals 55% of the lab average plus 45% of the test average.
General
4 months ago
use mathematical induction to show that (a) 1 + 4 +7 + ...+(3n -2) = n (3n - 1)/2 for n is the element of natural numbers, n is greater than or equal to 1.(
General
4 months ago
Gerald paid 12.60 for tank of gas how many gallons did he buy?
General
4 months ago
Jane is saving to buy a cell phone. She is given a $100 gift to start and saves me$35 a month from her allowance. So after 1 month, Jane has saved $135.Does it make sense to represent the relationship between the amount savedand the number of months with one constant rate? Why or why not? Explainyour answer.
General
4 months ago
4. Find the equations of the following lines:a. having slope of -2 and passing through the point (-4, 2)b. parallel to y = 6x + 3 and passing through the point (-1, 13)c. perpendicular to 3x – 5y = 5 and having an x-intercept of 3d. passing through (-2, -6) and (4, 2)e. having an x-intercept of -3 and a y-intercept of 6This is frustrating me to no end!!! Please Help!
General
4 months ago
Consider the following argument: If pigs have wings, then pigs can fly. If pigs are lighter than air, then pigs can fly. Pigs have wings or pigs are lighter than air. If pigs have wings or pigs can fly, then pigs don’t have wings. Therefore, donkeys can fly.(a) Write this argument in symbolic form, using the variables listed below.Pigs can fly pPigs are lighter than air qPigs have wings rDonkeys can fly s(b) Determine whether the argument is valid or not. Show your working.
General
4 months ago
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