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MATH SOLVE
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use the elimination method to solve the system of equations. choose the correct ordered pair. 3x + 6y = 36 and 3x - 6y = 0
General
4 months ago
Write a number story to fit this number sentence. 20- (3x6) =2
General
4 months ago
long division 19 divide 23.94
General
4 months ago
Devon exercised the same amount of time each day for 5days last week. His exercise included walking and swimming.Each day he exercised, he walked for 10 minutes. Heexercised for a total of 225 minutes last week. What is thenumber of minutes Devon swam each of the 5 days lastweek? And show how!
General
4 months ago
If the endpoints of the diameter of a circle are (−8, −6) and (−4, −14), what is the standard form equation of the circle? A) (x + 6)2 + (y + 10)2 = 20 B) (x − 6)2 + (y − 10)2 = 20 C) (x + 6)2 + (y + 10)2 = 2 5 D) (x − 6)2 + (y − 10)2 = 2 5
General
4 months ago
Find the area of the irregular figure. I've been stuck on this for awhile. Please help and explain how you did it.
General
4 months ago
9 minutes left to finish this!! I need help! Joey is 17 years older than his sister Pat. In 6 years, Joey will be 7 more than twice Pat’s age then. How old are Joey and Pat today?
General
4 months ago
A plane flying at a certain altitude is observed from two points that are 3 miles apart. The angles of elevation made by two points are 55 and 72, as seen in the diagram. The altitude of the plane to the nearest tenth of a mile is ?
General
4 months ago
There are 4 classrooms of third grade and 4 of fourth grade at our school. Each classroom has 20 students. She knows the following information: ·90% of 3rd and 4th grade students have permission to go on the trip.·4 teachers are going on the trip·The school requires 1 parent volunteer for every 8 students going on the trip.Part A: How many parent volunteers are needed to go on the trip?Part B: All of the students, teachers, and parents going on the trip ride in school buses that hold 44 people. How many school buses should Mrs. Horan reserve?
General
4 months ago
Philip needs to incorporate at least 200 roses in his floral arrangements for a wedding. Each centerpiece will have 24 roses, and each bouquet will have 10 roses. Write an inequality to represent the situation, if x represents the number of centerpieces Philip makes, and y represents the number of bouquets.
General
4 months ago
The mayor is interested in finding a 95% confidence interval for the mean number of pounds of trash per person per week that is generated in city. The study included 120 residents whose mean number of pounds of trash generated per person per week was 31.5 pounds and the standard deviation was 7.8 pounds. What is the confidence interval for the mean number of lbs of trash per person per week that is generated in the city?
General
4 months ago
In a lottery game, the jackpot is won by selecting five different whole numbers from 1 through 37 and getting the same five numbers (in any order) that are later drawn. In the Pick 5 game, you win a straight bet by selecting five digits (with repetition allowed), each one from 0 to 9, and getting the same five digits in the exact order they are later drawn. The Pick 5 game returns $50,000 for a winning $1 ticket. Complete parts (a) through (c) below:a. In a lottery game, the jackpot is won by selecting fivefive different whole numbers from 1 through 37 and getting the same five numbers (in any order) that are later drawn. What is the probability of winning a jackpot in this game? P(winning a jackpot in this game)=b. In the Pick 5 game, you win a straight bet by selecting five digits (with repetition allowed), each one from 0 to 9, and getting the same five digits in the exact order they are later drawn. What is the probability of winning this game? P(winning the Pick 55game)=c. The Pick 5 game returns $50,000 for a winning $1 ticket. What should be the return if the lottery organization were to run this game for no profit?
General
4 months ago
The radius of the sphere is 10 units. What is the approximate volume of the sphere? Use and round to the nearest whole cubic unit. 42 cubic units 126 cubic units 4187 cubic units 73,385 cubic units
General
4 months ago
Which graph below solves the following system of equations correctly? y = three over four times x squared minus 3 y = negative three over four times x squared plus 3 A) two quadratic graphs opening up. They intersect at 0 and negative 3. B)one quadratic graph opening up and one quadratic graph facing down. They intersect at 0, 3. C) quadratic graph opening up and quadratic graph opening down. They intersect at 0, negative 3. D) two parabolas one facing down with a vertex at 0, 3 and one facing up with a vertex at 0, negative 3
General
4 months ago
Find a numerical value of one trigonometric function of x for cos^2x+2sinx-2=0
General
4 months ago
4. A study of 30 fathers was completed in which the fathers were asked the highest level of education they had completed. 10 completed only elementary school, 10 completed elementary school and high school; 7 completed elementary school, high school and college; 3 completed elementary school, high school, college and graduate school. What was the cumulative percentage of fathers who completed only elementary school?
General
4 months ago
he head librarian at the Library of Congress has asked her assistant for an interval estimate of the mean number of books checked out each day. The assistant provides the following interval estimate: from 740 to 920 books per day. If the head librarian knows the population standard deviation is 150 books checked out per day, how large a sample did her assistant use to determine the interval estimate?
General
4 months ago
Line segment AB is reflected across the y–axis to form line segment CD. Then, line segment CD is rotated 90° clockwise about the origin to form line segment EF.
General
4 months ago
A system of linear inequalities is shown below: y − x > 0 x + 1 < 0 Which of the following graphs best represents the solution set to this system of linear inequalities? The first line is a dashed line which joins ordered pairs negative 1, 5 and negative 1, negative 4. The second line is a dashed line and joins ordered pairs negative 2, negative 2 and 4, 4. The portion common to the right of the first line and above the second line is shaded The first line is a dashed line which joins ordered pairs negative 1, 5 and negative 1, negative 4. The second line is a dashed line and joins ordered pairs negative 2, negative 2 and 2, 2. The portion common to the left of the first line and above the second line is shaded The first line is a dashed line which joins ordered pairs negative 1, 5 and negative 1, negative 4. The second line is a dashed line and joins ordered pairs negative 2, negative 2 and 2, 2. The portion common to the left of the first line, above the second line and below the x axis is shaded The first line is a dashed line which joins ordered pairs negative 1, 5 and negative 1, negative 4. The second line is a dashed line and joins ordered pairs negative 2, negative 2 and 3, 3. The portion common to the left of the first line and above the x axis is shaded
General
4 months ago
When Θ = 5 pi over 6, what are the reference angle and the sign values for sine, cosine, and tangent? Θ' = negative pi over 6; sine and cosine are positive, tangent is negative. Θ' = 5 pi over 6; sine and tangent are positive, cosine is negative Θ' = pi over 6; sine is positive, cosine and tangent are negative Θ' = negative 5 pi over 6; sine is positive, cosine and tangent are negative
General
4 months ago
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