Math Questions
The best high school and college tutors are just a click away, 24×7! Pick a subject, ask a question, and get a detailed, handwritten solution personalized for you in minutes. We cover Math, Physics, Chemistry & Biology.
Math
EllipseConsider the equation of the following (x+8)²/4 conic section: + (y + 6)² = 1. Use Desmos and scratch paper to determine the following characteristics of the conic section:
Name of Conic Section:
Center.
Foci:
Eccentricity:
Math
Basic MathYou have $2,000 on a credit card that charges a 12% interest rate. If you want to pay off the credit card in 3 years, how much will you need to pay each month (assuming you don't charge anything new to the card)?
Math
Basic MathYou have $400,000 saved for retirement. Your account earns 8% interest. How much will you be able to pull out each month, if you want to be able to take withdrawals for 25 years?
Math
Basic MathA force with a magnitude of 100 pounds and another with a magnitude of 400 pounds are acting on an object. The two forces have an angle of 60° between them. What is the magnitude of the resultant force?
458.2575 pounds
435.8898 pounds
387.2983 pounds
360.5551 pounds
131.6074 pounds
Math
Basic MathThe expected value when you purchase a lottery ticket is -$1.00 and the cost of the ticket is $7.00. Determine the fair price of the lottery ticket.
Math
Basic MathSelect the only true statement below.
A) The graph of an even function is symmetric with respect to the y-axis.
B) The graph of an even function is symmetric with respect to the x-axis.
C) The graph of an odd function is symmetric with respect to the x-axis.
D) The graph of an odd function is symmetric with respect to the y-axis.
Math
Basic MathThe displacement, d, in millimeters of a tuning fork as a function of time, f, in seconds can be modeled with the equation d=0.6sin(3520 st). What is the frequency of the tuning fork?
1/ 3520 Hz
1/1760 Hz
1760 Hz
3520 Hz
Math
Sequences & SeriesWhich of the following is an arithmetic sequence?
-2, 4, -6, 8, ...
2, 4, 8, 16, ...
-8, -6, -4, -2, ...
Math
Coordinate systemWhat's the slope and y-intercept of the graph of 7x+y=8?
A) Slope-7, y-intercept = 8
B) Slope 7, y-intercept = 8
C) Slope = -8, y-intercept = 7
D) Slope = -7, y-intercept = -8
Math
Basic MathUsing vertices to represent states and edges to represent borders, which graph models the bordering relationship among the states shown?
Math
Basic MathYou deposit $5000 in an account earning 6% interest compounded monthly. How much will you have in the account in 10 years?
Math
Basic MathA monk crossbred plants, which can have purple or white flowers, and obtained 617 plants with white flowers and 280 plants with purple flowers. Find the empirical probability that a plant had each type of flower.
Math
Basic MathA total of 690 tickets were sold for the school play. They were either adult tickets or student tickets. There were 60 fewer student tickets sold than adult tickets. How many adult tickets were sold?
Math
Functionsf(x) = -5(x + 4)(x − 3)(x + 1)³
a. How does the graph behave with relation to the x-axis at x=-1?
b. What are the real zeros of the function?
c. What is the degree of the function?
d. Describe the end behavior using limit notation.
e. Sketch a possible graph
Math
Mathematical ReasoningSuppose you want to have $500,000 for retirement in 35 years. Your account earns 6% interest. How much would you need to deposit in the account each month?
Math
Basic MathYou want to buy a $160,000 home. You plan to pay 20% as a down payment, and take out a 30 year loan at 3.9% interest for the rest. The bank will charge 3 points on the amount financed.
a) What is the amount of the down payment?
Math
Basic MathAn 8 in. by 8 in. square air vent is shown where AG = 8 inches. BF is the midsegment of ADG and CE is the midsegment of DBF. Which of the following is measure of CE?
2 inches
3 inches
4 inches
6 inches
Math
Sequences & SeriesA payday loan store charges $25 for a one-month loan of $240. What annual interest rate is this equivalent to?
Math
Basic MathA cylinder has a volume of 18 πin³. Which are possible dimensions of the cylinder?
Radius: 1 inch Height: 2 inches
Radius: 2 inch Height: 3 inches
Radius: 3 inch Height: 2 inches
Radius: 3 inch Height: 6 inches
Math
Basic MathEach exterior angle of a regular polygon measures 20°. How many sides does the polygon have?
A. 16
B. 18
C. 15
D. 20
Math
Functionsf(x) = 4x(x + 3)(x - 2)5(x + 6)²
a. How does the graph behave with relation to the x-axis at x = -6?
b. What are the real zeros of the function?
c. What is the degree of the function?
d. Describe the end behavior using limit notation.
e. Sketch a possible graph
Math
Basic MathA class is learning about ratios and percentages. The teacher tells the class that at last Friday night's football game there were between 800 and 1000 people. Of those at the football game, about 13-17 percent of the people had blonde hair. Which of the following is the most reasonable estimate of the number of people at the football game with blonde hair?
A. 170
B. 135
C. 100
D. 200
Math
Basic MathA rectangular park is 115 meters long and 70 meters wide.
Give the length and width of another rectangular park that has the same perimeter but a larger area.
Math
Basic MathYou deposit $2000 in an account earning 7% interest compounded monthly. How much will you have in the account in 15 years?
Math
Sequences & SeriesFind the common difference for the sequence shown
1/4, 5/16, 3/8, ...
1/16
1/4
1/2
Math
Mathematical ReasoningYou deposit $300 each month into an account earning 8% interest compounded monthly.
a) How much will you have in the account in 30 years?
b) How much total money will you put into the account?
c) How much total interest will you earn?
Math
Basic MathYou deposit $2000 each year into an account earning 4% interest compounded annually. How much will you have in the account in 25 years?
Math
Basic MathYou invest $125,000 in an account that earns 4.75% annual interest, compounded continuously.
a. What is the value of the account after 15 years?
b. What is the value of the account after 30 years?
Math
Basic MathThe height y, in feet, of a football x seconds after it is thrown is modeled by the equation y = -16x² + 24x + 1. What information does the zero of the equation 6 = -16x² + 24x + 1 represent?
the height of the ball after 6 seconds
when the ball is 6 ft above the ground
the initial upward velocity of the ball
the horizontal distance traveled by the ball when it is 6 ft above the ground
Math
Basic MathYou want to buy a $183,000 home. You plan to pay 15% as a down payment, and take out a 30 year
loan for the rest.
a) How much is the loan amount going to be?
b) What will your monthly payments be if the interest rate is 6%?
c) What will your monthly payments be if the interest rate is 7%?
Math
Basic MathYou can afford a $350 per month car payment. You've found a 4 year loan at 5% interest. How big of a loan can you afford?
Math
Basic MathMelanie used cross multiplication to correctly solve a rational equation. She found one valid solution and one extraneous solution. If 3 is the extraneous solution, which equation could she have solved? A. The equation is 4/(x-3)=x/10 because 3 makes a denominator equal to zero and is not a solution of the equation derived from cross multiplying.
B. The equation is (x-3)/4=2x/4x because 3 makes a numerator equal to zero and is not a solution of the equation derived from cross multiplying.
C. The equation is 8/(x^2-9)=5/(2x-6) because 3 makes a denominator equal to zero and is not a solution of the equation derived from cross multiplying.
D. The equation is 8/(x+3)=12/4x-3 because 3 is a soluiton of both the original equation and equation derived from cross multiplying.
Math
Mathematical ReasoningYou can afford a $850 per month mortgage payment. You've found a 30 year loan at 6% interest.
a) How big of a loan can you afford?
b) How much total money will you pay the loan company?
c) How much of that money is interest?
Math
Basic MathSelect the correct answer.
The value of m varies inversely as the square of n. When = 3, m = 6. What is the positive value of n when m = 13.5?
A 18
B. 4
C 2
D. 9
Math
Basic MathThe relationship between voltage E, current I, and resistance Z is given by the equation E = IZ. If a circuit has a current i = 3 + 2i and a resistance Z = 2-i, what is the voltage of the circuit?
4-i
4+i
8+i
8+7i
Math
Basic MathIt takes Greg and Nikki a total of 40 minutes to paint a room if they work together. If Greg works alone, he takes 18 minutes longer to paint he room than Nikki takes if she works alone. When x represents the number of minutes it takes Nikki to paint the room working alone, the situation is represented by this equation:
1/x + 1/x+18 = 1/40
Which value is a solution of the rational equation that must be discarded because of the context?
A. x=0
B.. X=-10
C. x= -18
D. X=-72
Math
Basic MathWhich survey is most likely affected by bias?
a survey of teenagers about their favorite colors
a survey of students about vacation policies in a school district
a survey of supermarket shoppers about products they would like to see added
a survey of bike riders on whether they wear helmets
Math
Basic MathAn airplane ascends at an angle of elevation of 22° for a ground distance of 7850 feet. What height does the plane gain during this ascent? Draw a picture on paper to support your answer, and round your answer to the nearest whole foot.
Math
Basic MathOn Wednesday, a local hamburger shop sold a combined total of 576 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Wednesday?
Math
StatisticsOne graph in the figure represents a normal distribution with mean = 16 and standard deviation a = 1. The other graph represents a normal distribution with mean u=8 and standard deviation o=1. Determine which graph is which and explain how you know.
Math
Basic MathThe quotient of (x^4-3x^2 + 4x - 3) and a polynomial is (x^2+x-3). What is the polynomial?
x^4-2x^2 + 5x-6
x^2-x+1
x^6+x^5-6x^4 + x^3 + 10x^2-15x + 9
x^4-4x^2 + 3x
Math
Heights and DistancesIn AQRS, the measure of ∠S-90°, SR = 7, QS = 24, and RQ = 25. What is the value of the tangent of ∠Q to the nearest hundredth?
Math
Basic MathFind the amount of simple interest earned for depositing the given principle in an account. if $3500 is invested at 6 % for 2 months
Math
Basic MathYou deposit $6000 in an account earning 5% interest compounded monthly. How much will you have in the account in 10 years?
Math
Basic MathCompare A and B in three ways, where A = 1.8 million is the 2012 population of city X and B= 2.6 million is the 2012 population of city Y.
a. Find the ratio of A to B.
b. Find the ratio of B to A.
c. Complete the sentence: A is percent of B.
a. The ratio of A to B is
Math
Mathematical ReasoningA surveyor determined the value of an area of land over a period of several years since 1950. The land was worth $31,000 in 1954 and $35,000 in 1955. Use the data to determine an exponential model that describes the value of the land.
Math
Limits and ContinuityYou want to be able to withdraw $25,000 from your account each year for 25 years after you retire. You expect to retire in 30 years. If your account earns 5% interest, how much will you need to deposit each year until retirement to achieve your retirement goals?
Math
Basic MathIf $6,000.00 is invested at 7% annual simple interest, how long does it take to be worth $10,620.00. It will take 4.334 x years (round to the nearest whole).