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Samuel found the difference of polynomials {15x^2+11y^2+8x}-{7x^2+5y^2+2x}=_x^2+6y^2+6x
General
10 months ago
A car leaves Macomb traveling south toward Carbondale at the average rate of 52 mph. At the same time, another car leaves Springfield traveling north toward Chicago at the average rate of 60 mph. If they are both traveling the same high way, but going different directions, how long will it take them to meet if the cities are 252 miles apart?
General
10 months ago
if cosx = 2/3 and x is in quadrant 4 find: sin(x/2), cos(x/2), and tan(x/2) please show steps
General
10 months ago
An acute triangle has side lengths 21 cm, x cm, and 2x cm. If 21 is one of the shorter sides of the triangle, what is the greatest possible length of the longest side, rounded to the nearest tenth?18.8 cm24.2 cm42.0 cm72.7 cm
General
10 months ago
The lengths of the sides of a rectangular window have the ratio 1.2 to 1. The area of the window is 1920 square inches. What are the dimensions of the window? 40 inches by 57.6 inches 40 inches by 48 inches 40 inches by 80 inches 43.82 inches by 43.82 inches
General
10 months ago
Which equation correctly describes the relationship between the measure of the inscribed angle and the measure of the intercepted arc in the figure?Can some one plz check my answer and if it is wrong explain why it is so
General
10 months ago
The cost of a candle varies directly with the volume of the candle. If a candle with a volume of 80 cm³ costs $12, what would be the cost of a candle with a volume of 120 cm³?
General
10 months ago
Use the discriminant to describe the roots of each equation. Then select the best description.x2 - 4x + 4 = 0double rootreal and rational rootsreal and irrational rootsnon-real roots
General
10 months ago
Name the property of real numbers illustrated by the equation 2x + 4y = 4y + 2x.Inverse PropertyDistributive PropertyCommutative PropertyAssociative Property
General
10 months ago
List parallelograms, polygons, quadrilaterals, and rectangles in order from the least specific group to the most specific one.A) parallelograms, polygons, quadrilaterals, rectangles B) polygons, quadrilaterals, parallelograms, rectangles C) rectangles, parallelograms, polygons, quadrilaterals D) polygons, parallelograms, quadrilaterals, rectangles
General
10 months ago
Hassan is constructing the circumscribed circle for △EFG . He has already constructed the perpendicular bisector of EG¯¯¯¯¯ .Which construction is the correct next step for Hassan?A. With the compass open to half the width of EG¯¯¯¯¯ , draw a circle centered at the intersection of EG¯¯¯¯¯ and its perpendicular bisector.B. With the compass open to half the width of EG¯¯¯¯¯ , draw a circle centered at point F.C. Construct the perpendicular bisector of FG¯¯¯¯¯ .D. With the compass point at the intersection of EG¯¯¯¯¯ and its perpendicular bisector, draw arcs that intersect EF¯¯¯¯¯ and GF¯¯¯¯¯ .
General
10 months ago
Suong is constructing the inscribed circle for △RST . She has already constructed the angle bisector of angle T.Which construction is a correct next step for Suong?A. Construct the angle bisector of angle R.B. Construct the line that passes through the intersection of the angle bisector and RS¯¯¯¯¯ such that the line is perpendicular to TS¯¯¯¯¯ .C. Construct the perpendicular bisector of TS¯¯¯¯¯ .D. With the compass open to the width of RS¯¯ , draw a circle centered at point T.
General
10 months ago
Find the area of the region bounded by the curves y = x2 and y = cos(x). Give your answer correct to 2 decimal places
General
10 months ago
What is the measure of angle x?Enter your answer in the box.x = ºThree intersecting lines. Three of the six angles formed by the intersecting lines are labeled. Every other angle is labeled. Going clockwise, they are labeled 56 degrees, x, and 41 degrees.
General
10 months ago
(06.02)Marcus flipped a coin 800 times and it landed heads up 560 times. What is the relative frequency of the coin landing heads up based on the results of this experiment? 30% 70% 3% 7%
General
10 months ago
Which of the following is true of histograms? (Check all that apply.)A.They are best used with large sets of data.B.They are useful when there is a wide range of data.C.They show specific values.D.They show where data is concentrated.Which of the following is true of a histogram? (Check all that apply.)A.The bars of a histogram should be the same width.B.Using a histogram you cannot find the mode, median, and mean, but you can find the range.C.The scale of a histogram should start at the lowest frequency and go to the highest frequency, or one higher.D.Intervals are shown on the horizontal axis.
General
10 months ago
The graph shows the height of a staircase in inches based on a certain number of stairs.According to the function in the graph, what is the height of a staircase with 100 stairs? Round the answer to the nearest inch if necessary.40 inches20 inches500 inches700 inches
General
10 months ago
A school conducted a survey to find out which games students enjoy watching the most. The table below contains the results of the survey. Grade Basketball Baseball Football Soccer Tennis Other Marginal TotalsElementary School 51 18 26 32 4 6 137Middle School 50 24 44 34 7 18 177HighSchool 42 17 58 36 11 24 188Marginal Totals 143 59 128 102 22 48 502Which observation is supported by the data in the table?Tennis is most popular among elementary school students.Baseball is most popular among students in all grades.Football is most popular among high school students.Soccer is most popular among middle school students.
General
10 months ago
A yard includes a border path of a fixed width around a lawn. The total area of the yard is represented by the expression (6+2x)(9+2x)What does the 6 represent?the area of the borderthe width of the borderthe width of the lawnthe width of the yard
General
10 months ago
What would be the best way to select an unbiased population-sample that represents the following topic: What is the favorite sport in Mr. Smith's class?A.Ask four people on your soccer team.B.Ask, "Do you like silly soccer, or exciting football?"C.Ask people reading at recess.D.Randomly survey at least 20 people in the class.
General
10 months ago
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