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Which of the following is an advantage of an observational study over a sample survey? A)Observational studies are not dependent on people’s responses, which may not be truthful. B)Observational studies involve the random selection of subjects. C)Observational studies do not manipulate variables. D)Observational studies do not involve treatments.
General
10 months ago
what is the best definition for marginal cost?
General
10 months ago
table Mary used Delicious (d) and Golden Delicious (g) apples to make homemade applesauce. Delicious apples are $0.75 each and Golden Delicious apples are $1.25 each. Mary spent $21.00 on 22 apples. How many Golden Delicious apples did Mary buy?
General
10 months ago
A triangular prism and two nets are shown:Which is the correct net of the prism and what is the surface area of the prism?
General
10 months ago
match the following Match the inequality to its graph. 20 points and brainiest.
General
10 months ago
HURRY PLEASE!!!! I WILL GIVE BRAINLIEST!!!!!!!A school sold small and large boxes of fruit for a fundraiser. One student sold 5 small boxes and 13 large boxes for $232. Another student sold 12 small boxes and 7 large boxes for $218. Their sales can be represented in two equations where x represents the price of the small boxes and y represents the price of the large boxes. Which constants can be multiplied by the equations so one variable will be eliminated when the systems are added together? Check all that apply.1 The first equation can be multiplied by –12 and the second equation by 5 to eliminate x.2 The first equation can be multiplied by 5 and the second equation by 12 to eliminate x.3 The first equation can be multiplied by –7 and the second equation by 13 to eliminate y.4 The first equation can be multiplied by 7 and the second equation by –13 to eliminate y.5 The first equation can be multiplied by 12 and the second equation by –5 to eliminate x.6 The first equation can be multiplied by 7 and the second equation by 13 to eliminate y.
General
10 months ago
How are exponential functions related to logarithmic functions?Model that with an example.
General
10 months ago
Which equation represents a football player who runs 5yds/sec and starts on the 25 yard line?Question 1 options:y = 5x + 25y = 5x - 25y = 25x + 5y = 25x - 5Based on these equations, which one represents the greatest rate?Question 2 options:y = 1/2 x + 8y = 2x + 4y = 4x + 2y = 7x + 5
General
10 months ago
Which graphic organizer would help you visualize important events in the history of the U.S. space program? timeline point-by-point diagram cause-and-effect chart Venn diagram
General
10 months ago
Dr. Silas studies a culture of bacteria under a microscope. The function b(t)=50(1.4)^t represents the number of bacteria t hours after Dr. Silas begins her study.a) What is the y-intercept of the function? What does this mean in the context of the problem?b) Is this exponential growth or decay? How do you know?c) How many bacteria would there be 5 hours after Dr. Silas began her study?Please show all your work!
General
10 months ago
Given: segment AB || segment DE, C is the midpoint of segment DB. Prove: ΔACB ≅ ΔECD Fill in the missing reason for the proof. A) definition of midpoint B) vertical angles are congruent C) all right angles are congruent D) supplementary angles are congruent
General
10 months ago
MATH HELP!!!Dwight's gross semimonthly pay is $1220. To maintain his current lifestyle, how much should he save up by the time he retires?$292800 $317200 $702720 $761280
General
10 months ago
What are the roots of the polynomial equation?x2−14x−32=0
General
10 months ago
The values √8 and √14 are plotted on the number line. What is the approximate difference in tenths between the two values?0.50.91.12.4
General
10 months ago
Kristen owns a bakery called Kristen’s cakes and such and is considering lowering the price of her cakes Kristen pulls her customers and determines that she can sell 100 cakes each week when she charges $25 each she also discovers that for every one dollar decrease in the price of the cake she will sell five more cakes the graph below represents Christians projected weekly revenue for each decrease in the price at what price she Christian sell her cakes in order to meet her maximum potential revenue
General
10 months ago
Write the slope-intercept form of an equation of the line that passes through (2,-4) and (0,6)
General
10 months ago
If the circle x2 - 4x + y2 + 2y = 4 is translated 3 units to the right and 1 unit down, what is the center of the circle?
General
10 months ago
A bamboo shoot is 20 inches tall at the zero and gross 24 inches each day which functions show below can be used to determine height F(n) of the bamboo after n days
General
10 months ago
A patio has the shape of the quadrilateral drawn in the picture below.1) Find the area of the patio. 2) What is the minimum number of square-tiles with sides of 30 cm that are needed to cover the patio if 10% more tiles will be needed to cover the non-rectangular shape of the patio?
General
10 months ago
kevin had 13 coins in his pocket. all of his coins are either dimes or quarters. when he emptied his pocket, kevin found that he had 2.05. how many dimes and quarters does he have?
General
10 months ago
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