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Help PlzJohn and Sara each bought the same type of pen and notebook in the school bookstore, which does not charge sales tax. John paid $5.55 for two pens and three notebooks, and Sara paid $3.50 for one pen and two notebooks. How much does the school bookstore charge for one notebook?SHOW WORK
General
2 months ago
Sara is completing the square to find the maximum or minimum value of the function f(x) = (2 - x) (5 + x). What is the first step that Sara must take? Does the function have a maximum or minimum value? What is that value?A)multiply the binomials; maximum value; 49/4B)multiply the binomials; minimum value; 49/4C)set each factor equal to zero and solve for x; minimum value; −2/5D)set each factor equal to zero and solve for x; maximum value; −7/2
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2 months ago
A forest ranger wants to install a 1,500 CFM (cubic feet per minute) fan. A ranger station consists of a rectangular prism and a rectangular pyramid. The base of the pyramid and prism is 10 ft by 8 ft. The height of the pyramid is 3 ft and the height of the prism is 8 ft. The ranger station requires one CFM per ft2. Will the fan provide enough airflow for the ranger station? Why or why not?
General
2 months ago
△PQR is reflected to form △P′Q′R′ . The vertices of △PQR are P(1,1) , Q(−1,−2) , and R(4,−2) . The vertices of △P′Q′R′ are P′(−1,1) , Q′(1,−2) , and R′(−4,−2) . Which reflection results in the transformation of △PQR to △P′Q′R′ ? reflection across the x-axis reflection across the y-axis reflection across y = x reflection across y=−x
General
2 months ago
A student measures the angle of elevation of a cloud to be 65° at point A. Then the student moves 100 feet in the direction of the cloud and takes a second observation at point B. At point B the elevation is 75. Using this information find the height, to the nearest foot, of the cloud directly above the ground.
General
2 months ago
Which of the following are examples of centripetal acceleration? Check all that apply. A. A car moving down a straight road B. A ball dropped from a second-floor window C. A girl running around a track D. A tetherball swinging around its pole CAN BE MORE THAN ONE ANSWER (BEST ANSWER GET BRAINLEIST)
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2 months ago
A test is worth 100 points. The test is made up of 40 items. Each item is worth either 2 points or 3 points. Which matrix equation and solution represent the situation?
General
2 months ago
Help me please with math
General
2 months ago
A spherical mini donut hole has a diameter of 6 centimeters. A large spherical donut hole has a diameter of 9 centimeters. Approximately how much greater is the volume of a large donut hole than the volume of a mini donut hole? 86 cm³113 cm³226 cm³268 cm³
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2 months ago
The line plot shows the number of hours two groups of teens spent studying last week.How does the data compare for the two groups of teens? The 13- to 15-year olds spent an average of 14 hours studying last week. The median value for the hours spent studying last week for the 13- to 15-year olds is greater than the median value for the hours spent studying last week for the 16- to 18-year olds. The range for the hours spent studying last week for the 13- to 15-year olds is the same as the range for the hours spent studying last week for the 16- to 18-year olds. The mode for the hours spent studying last week for the 13- to 15-year olds is less than the mode for the hours spent studying last week for the 16- to 18-year olds.
General
2 months ago
An airplane is traveling at a speed of 240 miles/hour with a bearing of 110°. The wind velocity is 56 miles/hour at a bearing of 325°. What are the plane's actual speed and direction angle?PLEASE HELP
General
2 months ago
50 points plzz helpp!!Triangle RED has vertices at (2, -2), (4,0), and the origin, respectively. Use rules of transformations to answer each of the items below. Be sure to answer in complete sentences, and when necessary, include your calculations.1. Model a scenario in which △RED is mapped onto its similar image △R'E'D' by an angle of rotation. In the model, describe the rotation as clockwise or counterclockwise, and include the angle of rotation.2.Use the model created in question #1 to name the coordinates of △R'E'D'. Include the mathematical steps taken in the transformation mapping △RED onto △R'E'D'.3. In two or more complete sentences, explain how undergoing an isometric transformation, such as an angular rotation, proves that △RED is similar to △R'E'D'.
General
2 months ago
WORTH ALOT OF POINTS need help please question 1If a horizontal plane crosses through a sphere, what 2-D cross section is formed?circlerectangletrianglesquarequestion 2 Which best describes the cross section formed by a horizontal plane slicing a cube?trianglerectanglecirclesquarequestion 3If a plane slices a cone parallel to its base, what cross section is formed?squaretrianglecirclerectanglequestion 4What cross section is formed when a plane slices a rectangular pyramid parallel to its base?circletrianglerectanglesquarequestion 5A horizontal plane intersects a cylinder parallel to its base. What 2-D cross section is formed?squarerectanglecircletriangle
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2 months ago
Which of the following expresses the possible number of positive real solutions for the polynomial equation shown below?x^3-4x^2-7x+28=0A. Three or oneB. OneC. TwoD. Two or zero(Thank you for the help, by the way. Please explain the answer, I'm not good at this D:)
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2 months ago
ivy has 4 tiles with pictures of plants and 5 tiles with pictures of animals. ivy keeps all the tiles on a mat with the pictures hidden and mixes them up. she then turns 1 tile face up and finds the picture of a plant on it. she removes this tile from the mat and turns another over tile without looking. what is the probability that the second tile that ivy turns over has a plant on it?
General
2 months ago
What constant do you need to add to each quadratic to complete the square? 1. x2 - 4x = 0 4 2. x2 - 8x = 6 9 3. 3x2 + 18x = 24 16
General
2 months ago
Substitute t=3 and t=6 to determine if the two expressions are equivalent.3(2t+5) 6t+15 Which statements are true? Check all that apply. A.The value of both expressions when t=3 is 33.B.The value of both expressions when t=3 is 23.C.The value of both expressions when t=6 is 41.D.The value of both expressions when t=6 is 51.E.The two expressions are equivalent.The two expressions are not equivalent.
General
2 months ago
given the equation Square root of x minus 5 + 7 = 11 Solve for x and identify if it is an extraneous solution.
General
2 months ago
The box plot shows the number of years during which 12 teams have participated in a rugby tournament: A box plot is titled Years of Participation and labeled Years. Number line from 0 to 10 with primary markings and labels at 0, 5, and 10. The box extends from 2 to 6 on the number line. There is a vertical line at 4. The whiskers end at 0 and 8.At least how many schools have participated for 6 years or more? 2 schools 3 schools 4 schools 6 schools
General
2 months ago
Bethany,Lauren,Amanda,and David all meet at Family reunion. They are comparing their ages. They have found that Laura is 13 years older than Metheny and David is 11 years older than Amanda. They also found that the product of Bethany and Laura Sage is equal to twice and Amanda's age.Also, if they subtract 20 years from both Bethany's and Louren's age, the product is equal to David's age.If x represents Bethany's age y represents Amanda's age, then which of the following system of equations can be used to determine the age of all for family members based on their findings?
General
2 months ago
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