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MATH SOLVE
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General
Solve the system y = -x + 7 and y = -0.5(x - 3)2 + 8
General
4 months ago
The table below shows the surface area y, in square feet, of a shrinking lake in x days: Time (x) (days) 10 20 30 40 Surface area (y) (square feet) 100 90 80 70 Part A: What is the most likely value of the correlation coefficient of the data in the table? Based on the correlation coefficient, describe the relationship between time and surface area of the lake. [Choose the value of the correlation coefficient from −1, −0.99, −0.5, −0.02.] (4 points) Part B: What is the value of the slope of the graph of surface area versus time between 20 and 30 days, and what does the slope represent? (3 points) Part C: Does the data in the table represent correlation or causation? Explain your answer. (3 points) Please help I cant figure it out.
General
4 months ago
Compute the most rational way.268∙82+268∙17−168∙99What is the most rational way to solve this?
General
4 months ago
Evaluate the following expression. (6)^-2
General
4 months ago
Pi is defined as the ratio of the circumference of a circle to the diameter of that circle. Which of the following correctly explains why the formula for the circumference of a circle is 2 pi r?A. Two times pi equals the distance from one side of the circle to the other. When you multiply around the circle, or the circumference.B. Pi times r equals the diameter of the circle. The diameter is a half circle, so when you multiply it by 2, you get the distance around the entire circle, or the circumference.C. Two times r equals the diameter of the circle. Pi is needed for all circle formulas, so you multiply by Pi since you are finding the circumference.D. Two times r equals the diameter of the circle. Pi equals the circumference divided by the diameter. When you multiply, the diameter is in both the numerator and the denominator, which cancels out, leaving the circumference.
General
4 months ago
Which expressions can be used to find the coordinates of the midpoint of PQ with endpoints P(3, –1) and Q(–7, –6)? Check all that apply. can be used to find the x-coordinate of the point. can be used to find the y-coordinate of the point. (–7 – 3) + 3 can be used to find the x-coordinate of the point. (–6 – 1) – 1 can be used to find the y-coordinate of the point. – 1 can be used to find the y-coordinate of the point.
General
4 months ago
A paint can has a radius of 4 inches and a height of 15 inches. What is the volume of the paint can? Round to the nearest tenth. Use 3.14 for π.
General
4 months ago
if 3.8 billion gallons of water are used for domestic use per day , approximately how many gallons of water are used for irrigation per day
General
4 months ago
What are the x-intercepts of the graph pf the function below?y=x^2+3x=28
General
4 months ago
A stock broker is evaluating the value of a certain share with each week. The function that describes the value of the share, v, in dollars, after n weeks is given below, where b is an unknown positive base.v(n) = (14) times b^2Select the correct statement.If b = 1.06, the weekly percent growth rate of the share's value is 6%.If b = 1.8, the weekly percent growth rate of the share's value is 8%.If b = 0.84, the weekly percent growth rate of the share's value is 84%.If b = 0.77, the weekly percent growth rate of the share's value is 23%.
General
4 months ago
Greg drew a pair of parallel lines and a line segment next to each other on a chalkboard. Which of these statements best compares the pair of parallel lines and the line segment? (1 point) Parallel lines and the line segment have no dimensions of measurement. The parallel lines and the line segment always meet at a common endpoint which is called the vertex. Parallel lines and a line segment cannot lie on the same plane at the same time because they do not overlap. The parallel lines extend infinitely in both directions, and the line segment has two endpoints.
General
4 months ago
The manager at Jessica's Furniture Store is trying to figure out how much to charge for a couch that just arrived. The couch was bought at a wholesale price of \$113.00$113.00dollar sign, 113, point, 00, and Jessica's Furniture Store marks up all furniture by 45\%45%45, percent.At what price should the manager sell the couch?
General
4 months ago
What is the y-value when x equals -11? y = -200 – 12(x).
General
4 months ago
The graph is supposed to show f(x)=3sin(x/4+1)-1/2. Which of the following are correctly represented in the graph? Select all that apply. (2 answers)a. the amplitudeb. the vertical shiftc. the horizontal shiftd. the periode. the horizontal expansion or compression
General
4 months ago
a(1)= -2a(n)=a(n-1)-5 whats the 4th term in the sequence?
General
4 months ago
When p2 – 4p is subtracted from p2 + p – 6, the result is 5p-6 To get p – 9, subtract
General
4 months ago
Milo wants to make a mixture that is 50% lemon juice and 50% lime juice.How much 100% lemon juice should he add to a juice mixture that is 20% lemon juice and 80% lime juice to make 4 gallons of the 50% lemon/50% lime juice mixture?A. 0.5 gallonB. 1.5 gallonsC. 2 gallonsD. 2.5 gallons
General
4 months ago
Use the data to create a scatter plot. Year 0 1 2 3 4 Population 3 4 6 11 15 Use the point tool to plot the points from the table in the coordinate grid to create a scatter plot.
General
4 months ago
1. All numbered streets runs parallel to each other. Both 3rd and 4th Streets are intersected by King Ave. as shown:(a) Suppose a car is traveling east on 4th Street and turns onto King Avenue heading northeast. What is the measure of the angle created by the car's turning? Explain your answer.(b) Suppose a car is traveling southwest on King Avenue and turns left onto 3rd Street. What is the measure of the angle created by the car's turning? Explain your answer.(c) Suppose a car is traveling northeast on King Avenue and turns right onto 3rd Street. What is the measure of the angle created by the car's turning? Explain your answer.
General
4 months ago
Two florist purchased flower bouquets and vases at the same store. The first florist bought 2 flower bouquets and 2 vases for a total of $12.50. The second florist bought 8 flower bouquets and 2 vases for a total of $29.00. Let b represent the cost of one flower bouquet and v represent the cost of one vase. Write and solve a system of equations to find the price of each type of arrangement. Show all work.
General
4 months ago
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