# Math

## Recent Questions

Math (precalculus)
A rectangle has one corner on the graph of y=f(x)=33-3x^2, another at the origin, a third on the positive y-axis, and the fourth on the positive x-axis. Express the area, A, of the rectangle as a function of x=2

math
you spin two spinners, each of which is divided into five congruent sections numbered 1 to 5. list all possible outcomes. then find the probability of getting the same number on both spins

Math
kristin bought eight boxes. a week later half of her boxes were destroyed in a fire. there are now only 17 boxes left. with how many did she start?

Math
Make a word problem for this equation: 4(w+3)=w-15

Math Need Immediate Help????
Find the inverses of each of the functions below algebraically. a.f(x)=3y+5x=18 b.h(t)=−4.9(t+3)^2+45.8

Math (calculus )
A company buys an office machine for \$5200 on January 1 of a given year. the machine is expected to last for eight years at the end of which time its trade in value or salvage value will be 1100\$. if the company figures the decline in value to be the same each year than the ...

Math
Impulses in nerve fibers travel at a speed of 293 ft./sec . the distance D traveled in T seconds is given by D =293t . how long would it take an impulse to travel from the brain to the toes of a person who is 6 feet tall? My answer: 6ft=293t 6/293=0.020477 seconds?

Math
A company buys an office machine for \$5200 on January 1 of a given year. the machine is expected to last for eight years at the end of which time its trade in value or salvage value will be 1100\$. if the company figures the decline in value to be the same each year than the ...

math
If one gallon of paint covers 350 square feet,will 8 gallons of paint be enough to paint the inside and outside of the fence?

math
The five number summary, the sample size, and the largest and smallest data values in the tails of the distribution for a sample of data are given below. Five number summary: left-parenthesis 10 comma 12 comma 15 comma 18 comma 29 right-parenthesis; n equals 200 Tails: 10 ...

math
The length is 2 inches and the actual length is 2 miles what is the scale factor?

math
What is the scale factor of 120 yds long and 1 in equals 20 yds?

Math
In a city baseball league the Tigers are 1/2 games behind the pirates and the Pirates are 4 games ahead of the Cubs. How many games separate the Tigers and the Cubs? 4 behind pirates

math
6(m-20)=270

math
16 : x :: x : 25 what is the value of x.

math
Please show work 6 1/6 ÷ 2 3/10

math
how do you solve 57.8 divided by 0.68

Math
An explicit solution of a differential equation is: a) a simpler equation b) a real number c) a function on some domain d) an approximation e) a linear relation

MATH HELP PLS
Given the following functions f(x) and g(x), solve (f + g)(3) and select the correct answer below: f(x) = 6x + 3 g(x) = x − 7 4 17 25 31 is it b

Math
If the base is 15 3/4 and the area is 147 what would the height be?

Math
Mary is creating bouquets of flowers using 18 roses,9 lilies, and 21 carnations. She wants each bouquet to be identical with no flowers left over. What is the greatest number of bouquets that Mary can make?

math
A CACTUS CASTS A SHADOW THAT IS 14ft 7in long. A gate nearby casts a shadow that is 5 ft long. Estimate the height of the cactus.

Math
The cafeteria is serving pie for dessert. Each serving will be 1/8 of a pie. how many servings will they be able to make if they have 7 pies?

math
Elaine is making a model of a house that she designed. She wants to put wood molding around two rooms in the model. She measures and finds that she needs feet of molding for one room and feet of molding for the other room. She has feet of molding

math test PLZ HELP MEH I NEED IT ASAP
write 0.8,7/8,81%,19/25 in least to greatest

Math/Algebra
Farmer Brown drives to town at 36 mph and returns at 48 mph. If his total driving time is 3 and 1/2 hours, how far away is the town?

math
at this rate how many trucks would pass Luann if 90 vechicles passed her

Math
What is square root of 15 times radical form

Math
while training for cross country, Janay ran every day after school Monday through Thursday. Each run was 1.2 miles long. How many feet did she run?

math
On the map,1/4 inch stands for 100 miles. Two cities are 3 inches apart on the map.How many apart are they?

math
What is 1/3 of 12

math
Give the next term in the following sequence: 16, 36, 64, 81, 100, ...

Math
The turning point of the function represented by f(x) = x^2 -6x+7 has coordinates (3,-2). Find the coordinates of the turning point of the function defined by g(x)= f(x)+2. explain how you arrived at your answer

Math
Find the inverses of each of the functions below algebraically. a.f(x)=3y+5x=18 b.h(t)=−4.9(t+3)^2+45.8

Math/Algebra
Farmer Brown drives to town at 36 mph and returns at 48 mph. If his total driving time is 3 and 1/2 hours, how far away is the town?

Math
4s-(3-2s)-6=9 Please check my work: 4s-3+2s-6=9 6s-9=9 3s=18 s=3

math ( factorising by grouping)
a) am-an-2bn+2bm b) 2ax-6bx+ay-3by c) 2ax-6bx-ay+3by d) a^2b+c^2b-c^2b-a^2b e) a^3+3a^2+2a+6 f) ax-2ay+2bx-4by

math
A box contains 150 black pens and 50 red pens. Jose said the sum of the probability that a randomly selected pen will not be black and the probability that the pen will not be red is 1. Explain whether you agree. THANK YOU!!

math
The power goes out as Sandra is trying to get dressed. If she has 4 white t-shirts and 10 colored t-shirts in her drawer, is it likely that she will pick a colored t-shirt in the dark? What is the probability she will pick a colored t-shirt? Explain your answer. THANK YOU!

math (factorising by grouping )
a) 2ax-6bx+ay-3by b) 2ax-6bx-ay+3by c) a^2b+c^2b-c^2b-a^2b d) a^3+3a^2+2a+6 e) ax-2ay+2bx-4by

Math
Trey can drive his car 130 miles on 4 gallons of gas. At this rate, how many miles can he drive on 6 gallons of gas?

Math
HOW DO YOU FIND THE AREA OF A POLYGON? COULD YOU PLEASE BE DEATAILED,BECAUSE I DON'T GET IT!!!

math
What is 7 1/8×2 5/6 =👍👍👍👍​28077;👍

Math
Find the inverses of each of the functions below algebraically. p(r)=2r^2+2r−1 3y+5x=18

math
Your math test has 38 questions and is worth 200. points. The test consist of multiple choice questions worth 4 points each and open ended questions worth 20 points each. How many of each type of question are there?

language
Juan has an essay due in English on Wednesday and a page of math homework due on Friday. How should Juan approach this work? A. Get the math out of the way so he can focus on the essay. B. Split his study time between the courses from now until Wednesday. C. Focus on whichever...

math
put these fractions in order least to greatest 3/4,4/5,7/8,and 3/10

Math, are they all right?
1. A student raises her grade average from a 75 to a 90. What was the percent of increase in the student’s grade average? Round your answer to the nearest tenth of a percent, if necessary. A: 20% B: 16.7% C: 8.3% D: 15% *** 2. Beanbag chairs that normally sell for \$36.50 are...

Math
During a sale at a store, you buy 3 sweatshirts and two pairs of sweatpants for 85.50. Later you buy 3 more sweatshirts and 4 more pairs of sweatpants for 123.00. WHat is the sale price of each sweatshirt and each pair of sweatpants? How did you get the answer what formula

math
which of the following side lengths could combine to form a triangle?

Math
The diameter of a tire is 2.5 ft. What is the circumference of the tire? About how many times will thee tire have to rotate to travel in 1 mile? 5280 ft. A. 5 ft? B. 1,056ft???

Math
Bett, Cathy, Isabel, Lani and Ursula run an 800-meter race. Betty beat Cathy by 7 meters. Alma finished 12 meters behind Lani. Bettty finished 5 meters ahead of Ursula but 3 meters behind Lani. Isabel finished halfway between the first and last person. In what order did they ...

Math
3 cos (ωt + 2) + 4 sin (ωt + 1) as A cos (ωt + φ) . A = ? φ= ?

Math
A student bought 3 boxes of pencils and 2 boxes of pens for \$6. He then bought 2 boxes of pencils and 4 boxes of pens for \$8. Find the cost of each box of pencils and each box of pens.

here are 7 pencils and 9 pens in Jack's pencil case. Represent the number of pens to the number of pencils as a ratio.

Math
1. Find the next three terms in the sequence. 30, 22, 14, 6, ... -3, -12, -21 -1, -8, -15 -1, -2, 3, -2, -10, -18** 2. Find the next three terms in the sequence. 3, 6, 9, 12, ... 15, 18, 20 ** 15, 19, 20 15, 18, 21 14, 18, 21 3. Find the next three terms in the sequence. -1, 9...

HELP PLZ MATH
There are 12 ducks and 15 geese swimming in a pool. What is the ratio to geese to total birds at the pond? A) 12:27 B) 27:12 C) 15:27 D) 27:15 Plz help

Math
Which is the best approximation of the volume of a cylinder with a radius of 10 mm, and a height of 5 mm? Use 3.14 for pi.

math
What is 34567÷48583829×57383920=

Math
Sarah made a square tablecloth and wants to put lace around the edges. The length of one side of the tablecloth is 56 inches. How much lace will Sarah need?

SO HARD! MATH
How many nickels would it take to make a stack that's 100 , yes 100 , inches tall! How hard is this?!? AGHHHHHHHH Please help! \(X_X)/ HELPPPPPPPPPPPP MEEEEEEEEEE

math
Chalk contains 3 percent carbon 10 percent calcium and oxygen find the amount in grams of each of these substances in 1 kg

Math Help
The measure of <3 is 101. Find the measure of <4 A. 79 B. 106 C. 74 D. 101 Not sure on witch one

Math
Prepare payroll worksheets (for the week) for three employees. Assume that they worked the following hours at the following rates: - Sam - 6 hours per week at \$30/hour - Lisa - on salary with \$700/week - Ben - 20 hours per week at \$45 hour Please include tax and super and ...

Math
A certain system can experience three different types of defects. Let Ai (i = 1,2,3) denote the event that the system has a defect of type i. probabilities are: P(A1) = 0.12 P(A2) = 0.07 P(A3) = 0.05 P(A1 union A2) = 0.13 P(A1 union A3) = 0.14 P(A2 union A3) = 0.10 P(A1 ...

math
this is a linear inequalities 4a-3b=5

Math
5) Write an equation in point-slope form with the given: (5,-8),(5,8) 8) Write an equation in slope-intercept form for a line that passes through the point (2,-5) and is parallel to y = 11 : )

math-Polya
What is the largest rectangular chicken pen (enclosure) that a farmer can construct (fence) if he/she is providing with a wire fencing of 20 metres? The farmer is expected to use only full metres for the sides. 1. Use Polya to solve problem (8) 2. Use three representations(...

math
A researcher's garden contains 90 sweet pea plants, which have either white or purple flowers. About 70 of the plants have purple flowers, and about 20 have white flowers. Would you expect that one plant randomly selected from the garden will have purple or white flowers? ...

Math
In Super Bowl I, the Green Bay Packers defeated the Kansas City chiefs by a score of 35 to 10. The total points came from 13 different scoring plays, which were a combination of touchdowns, extra point kicks, and field goals, worth 6, 1, and 3 points respectively.The same ...

math
A bag contains 8 blue coins and 6 red coins. A coin is removed at random and replaced by three of the other color. a) What is the probability that the removed coin is blue? b) If the coin removed is blue, what is the probability of drawing a red coin after three red coins are ...

math
For breakfast, Clarissa can choose from oatmeal, cereal, French toast, or scrambled eggs. She thinks that if she selects a breakfast at random, it is likely that it will be oatmeal. Is she correct? Explain your reasoning.

Math
1. Calculate the simple interest for each situation. Choose THREE that have a simple interest greater than \$800.00. a. \$2,000.00 at 6% for 7 years *** b. \$4,500.00 at 3% for 6 years *** c. \$1,400.00 at 6% for 9 years d. \$5,000,00 at 7% for 3 years *** e. \$800.00 at 15% for 5 ...

Math
A 2005 Gallup Poll found that 7% of teenagers suffer from arachnophobia and are extremely afraid of spiders. At a summer camp there are 10 teenagers sleeping in each tent. Assume that these 10 teenagers are independent of each other. a) Calculate the probability that at least ...

ONE math question! Check please, thank you!
6) 108 is 36% of what number? Write and solve a proportion to solve the problem. Step 1. First, I will write the proportion to find the missing value, which I will replace it with n. 108/n = 36/100 Step 2. Next, I will write the cross products. So, 36n = 108 x 100 = 10,800 ...

math
In my math class tests are 70% and homework is 30% so if i wanted at least an 80% how much would be the least percentage i needed in each category

Math
Could you please explain the differences between linear relationships and exponential relationships? How or when would I use either or them? Thank you.

Math
In Super Bowl I, the Green Bay Packers defeated the Kansas City chiefs by a score of 35 to 10. The total points came from 13 different scoring plays, which were a combination of touchdowns, extra point kicks, and field goals, worth 6, 1, and 3 points respectively.The same ...

math
Two functions, A and B, are described as follows: Function A y = 9x + 4 Function B The rate of change is 3 and the y-intercept is 4. How much more is the rate of change of function A than the rate of change of function B? 2 3 6 9 I believe the answer is either C or B but I am ...

Math
Bett, Cathy, Isabel, Lani and Ursua run an 800-meter race. Betty beat Cathy by meters. Alma finished 12 meters behind Lani. Bettty finished 5 meters ahead of Ursula but 3 meters behind Lani. Isabel finished halfway between the first and last person. In what order did they ...

Can someone help me on math?
Calculate the simple interest for each situation. Choose THREE that have a simple interest greater than \$800.00. a. \$2,000.00 at 6% for 7 years *** b. \$4,500.00 at 3% for 6 years *** c. \$1,400.00 at 6% for 9 years d. \$5,000,00 at 7% for 3 years *** e. \$800.00 at 15% for 5 ...

math
In my math class tests are 70% and homework is 30% so if i wanted at least an 80% how much would be the least percentage i needed in each category

math
how many 1/3 cup servings are in 3/4 of a cup of tea

More math
Calculate the simple interest for each situation. Choose THREE that have a simple interest greater than \$800.00. a. \$2,000.00 at 6% for 7 years *** b. \$4,500.00 at 3% for 6 years *** c. \$1,400.00 at 6% for 9 years d. \$5,000,00 at 7% for 3 years *** e. \$800.00 at 15% for 5 ...

math
your bill comes to \$23.55 at a restaurant. how much money should you leave for a 15% tip for good service? How much money should you leave for a 20% tip for excellent service?

Elementary Math
The question stated: Write a numerator that makes the statement true. 1/2< /10 < 4/5 My answer is 7/10 am I correct< If not please explain. Thanks

Math
My border is 9 feet long and 1/3 foot wide each tile measures 1/3 foot by 1/3 foot each box of tiles contains 6 tiles how many boxes of tile,do I need show 2 equations to solve the problem

More math
Calculate the simple interest for each situation. Choose THREE that have a simple interest greater than \$800.00. a. \$2,000.00 at 6% for 7 years *** b. \$4,500.00 at 3% for 6 years *** c. \$1,400.00 at 6% for 9 years d. \$5,000,00 at 7% for 3 years *** e. \$800.00 at 15% for 5 ...

math
A 40 foot long escalator rises from the first floor to the second of a shopping mall. The escalator makes a 30 degree angle with the horizontal. How high above the first floor is the second floor?

Math
\$52 sweater on sale for \$31.20 What is the percent of discount or markup ?

math
if there are 6 horses are they enough for 16 students

Math
I need to design a site plan for a wildlife centre. In order to save money, I must design the plan using the least amount of fencing possible. The plot of land is 80 m wide by 100 m long, and it must be fenced off. Each section for each animal must be fenced off. The building ...

Math help
The price of a calculator is \$12.50. The sales tax is 7.5%. How much will you pay for the calculator? a. \$13.40 b. \$13.44 * c. \$13.57 d. 13.61 Thank you.

Math
There are 40 cows and chickens in a farmyard. One quiet afternoon, Lola counted and found that there were 100 legs in all. How many cows and how many chickens are there? thx...

math
There are 16 animals on a farm 3/8 horses, 1/4 are donkeys and the rest are mules. How many horses,donkeys and mules are at the farm

math
What number is 73% of 215? (1 point) 215 = 0.73n n = 0.73 × 215 *** 0.73 = n × 215 215 = 73n

Math - Another question to check, sorry... =/
7. 72 is what percent of 480? Write and solve an equation to solve the problem. Step 1. First, I will write out the equation. part = percent x whole Step 2. Now, fill in the parts… 72 = p x 480 Step 3. I will simply divide 72 by 480, which will be 0.15. Step 4. The decimal ...

math
how do you simplify 10/21

Math
Solve the equations below. Check your solutions. 3x-5/2=4x+1/4

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