# Math

## Recent Questions

Discrete Math?
Was wondering, anyone here know discrete math? Specifically regarding to rules of inferences?

Math
The cash records of Oriole Inc. show the following situations: Deposits in transit: 1. The June 30 bank reconciliation indicated that deposits in transit total \$2,040. During July, the general ledger account Cash shows deposits of \$14,610, but the bank statement indicates that...

Math
percentage increase & decrease original amount 20 decrease % _blank new amount 19 What is the formula used to get the decreased amount?

Math-Geometry
Starting from the point (0,0), a grasshopper makes a series of moves on the coordinate plane. The grasshopper's first move takes her to (3,4). She then proceeds via this rule: Move Rule: After a move which adds (x,y) to the grasshopper's coordinates, her next move adds either...

sat math
An employee's training time and meeting time cannot exceed 16 hours a month. For every hour of training there is 2 hours of meeting. There should be at least 2 hours of training every month. What is the difference between the maximum and minimum number of monthly training ...

Math
Dena has 30 metres of ribbon to dcorate 12 pillows.How much ribbon can she use for each pillow?

math
A bottle of Harvest Time Apple Juice contains 64 oz. and costs 2 bottles for \$1.98. Farm Fresh Apple Juice is available in bottles that contain 1 gallon and sells for \$1.88 per bottle. Which is the better buy?

Math
The heights of four of the starting players on the basketball team are 183 cm, 178 cm, 174 cm, and 185 cm. If the mean height of all five starting player is 182 cm, what is the height of the fifth starting player? Show your work

Math
I need help with this equation, but Can you also explain to me how you would get this answer? 5/13t = -9

Math
In parrellogram ABCD,IF DO andCO are the AngleADC angleBCD respecttively,then reflexAngleDoc is equal to

math
the plan of a shopping complex is drawn to a scale of 1:400. A supermarket on the plan occupies an area of 0.25m square, calculate its actual area in hectares

Math
Kalibasib runs 12.0 m east and then 28.0 m in a direction 30.0 degrees east of north. How far is Kalibasib from the starting point?

Math
Six years ago, DJ’s mother was 8 less than twice the age of DJ then. Four years from now, twice her age will be four more than thrice his age. How old is DJ now?

Math
Each week Rosa receives a salary of \$200 plus a 6 percent commission on her total sales. To the nearest dollar, how much would Rosa have to sell in one week to earn a total of \$300

wile catching fireflies, you and your friend decide to have a competition. after m minutes, you have (3m +13) fireflies and your friend has (4m+6) fireflies. a. how many fireflies are caught per minute? b. ow many fireflies caught before the competition? for a. we tried (3m+13...

Math
Give the domain and range of the following functions: f(x) = 1⁄4x – 7 g(x) = 3x2+ 2

math
-1/4+(-2/7)=? a.-15/28 b.-3/11 c.9/14 d.3/28

math
-6/7+6/21=? a.-4/7 b.12/49 c.-1 3/7 d.12

Math
Factor 81-27p is A)9(9-3p) B)27(3-p) C)27(54-p) D)27(p-3) I think A but not sure. Is there a website that explains simplifying Algebraic Expressions? Thanks for your help.

Math
Disclaimer: I'm not asking for an answer I'm just asking how to do this. ________________________________________​_____ 9-c<2or-3c>15? I'm not asking for the answer I already submitted the thing but I just want to know how to do it for future purposes, Thank you ...

math
Given the function f(x) = x2– 3x + 3, find the following: f(-2) = _________ f(5) = _______

math
Give the domain and range of the following functions: f(x) = 1⁄4x – 7 g(x) = 3x2+ 2

math
All the members of a construction crew work at the same pace. Six of them working together are able to pour foundation in 22 hours. How many hours would this job take if the number of workers: if the workers increased by the factor two

math
I’m thinking of a number that when multiplied by 8.7 gives a product of about 7.2 . Give 5 numbers to answer this question and show how your estimations are reasonable.

Math
Mr. Perry took his family out to eat. They ordered three meals costing \$8.99 each, two sodas at \$1.50 each and one cup of coffee for \$1.25 . Write an expression to find the total amount the Perry family spent on dinner before taxes and tip. Afterwards, evaluate the expression.

Math
In a recent survey 56% of students at MacNab High School work a part time job during the school year. If there are 378 students in the school, is 125 , 200 or 560 a reasonable estimate for number of students who work part time during the school year? Explain your answer.

Meg is making necklaces out of leather string. Each necklace requires 25 centimeters of string. Meg wants to make a necklace for each member of her family so she needs a total of 7 necklaces. How many centimeters of string does Meg need? If the total cost of the string was \$4....

math
Three friends Nick, Rachel and Ahmed have a lemonade stand. They decide to share the profits the following way. Nick gets 2/3 of the total profits. Rachel will get 1/4 of the total profits. Explain why Ahmed will get 1/12 of the total profits. Give reasons for your answer

Math
1. What is 2.28 x 10^-8 in standard form

math
A sales clerk receives a monthly salary of \$800 plus a commission of 7%on all sales over \$3000. What did the clerk earn the month that he sold \$â¢13,300 in merchandise?

math
The denominator of a fraction is 20 more than the numerator of the fraction. If 5 is added to the numerator of the fraction and the denominator is unchanged, the value of the resulting fraction becomes 38. Use x as your variable. Find x.

What was one strength of the Articles of Confederation? A it allowed states to make decisions for themselves B it gave the federal government power to impose taxes C it gave congress the authority to over turn decisions made by the president D it provided congress with a means...

math
a spy tracks a rocket through a telescope to determine its velocity. the rocket is traveling vertically upward from a launching pad 10,000 m away. at a certain moment the angle between the telescope and the ground is equal to pi/3 and is changin g at a rate of 0.5 rad/min. ...

Math
What is the side length of an equilateral triangle that has a perimeter of 24.6 cm?

Math
Is the equation true, false, or open? 9p + 8 = 10p + 7 I think it's true... Am I correct???

MATH
Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars) for a run of x pairs of cleats is C(x) = 2900 + 9x + 0.1x2 (0 ≤ x ≤ 500). Gymnast Clothing sells the cleats at \$150 per pair. Find the revenue ...

Math
Fertilizer covers 5/8 square feet in 1 / 4 Hour

math
sam has 4/5 yards of yarn. he used 3/8 of the yarn. how many yards of yarn did he use? a. 5/8 b. 7/10 c. 3/10 d. 3/13 i dont know the answer and i need help getting the answer.

math
A single fair is tossed. Find the probability of obtaining a number different than 9

Math
A solid body consists of a cylinder surmounted by a hemisphere of the same radius. The total length of the body, measured along the central axis of cylinder, is 10cm. If the radius of the hemisphere is xcm

math
Divide 61 into two parts such that their product is 320

math
An ordinary annuity with 2,000 regular at 3% compounded annually for one year

math's
Manoj deposited a sum of rs64000 in a post office for 3 years compounded annually 9%/ annum.what amount will he get on maturity?

Math simplify
How is this positive 8. I keep getting negative -16. Simplify: -4 + -12= ?

Math
Can someone help with lesson 10 unit 3 solving equations?

Math
Which ordered pair is a solution of the equation: y= -9x + 4 A (10,-86) B (-4,-58) C (6,-41) D (-6, 57)

Math
What is 0.4 ten times as much as

Math
at lunch, lupe shared 3 1/2 small pizzas equally among his 4 friends. lupe's friend, Jon, only ate 1/2 of the pizza Lupe gave him. what fraction of a whole pizza did Jon eat?

Math
Can someone please help me with this question? If f(x) = 7x2 – x + 3 and h ≠ 0, find the following and simplify. a.) f(x+h) b.)( f(x+h)-f(x))/h

Math
Write 17/4 as a mixed number. Explain your work I'm stuck and could really use some help, this is what I got so far: First I divided 17 by 4, 4 goes into 17 four times and has a remainder of 1. What do I do after this can anyone help??

Math
7a+10=2a

Math
Rationalize the denominator of (3 * cube root of 12 - 8) / (cube root of 9 - cube root of 6). Please show steps and the full process to rationalize.

math
Which point is located at (– 3 , – 2)?

Math
Riddle: why is it always so noisy in the barn? Use this letter to solved: REZGBNESKA Thanks can't figure it out help!

Math
Leila will rent a car for the weekend. She can choose one of two plans. The first plan has no initial fee but costs \$0.70 per mile driven. The second plan has an initial fee of \$65 and costs an additional \$0.50 per mile driven. How many miles would Leila need to drive for the ...

Math
Laura was making a recipe that said the ingredients were for 6 people, but she needed to make it for 8 people. The recipe called for 2 2/3 cups of milk and 1/4 cup of oil. How many cups of these liquid ingredients did she need for 8 people?

math
write 70000000+600000+5000 in standard form

math
write 70000000+6000

math.science
what is the heat release rate for a 30-m diameter gasoline pool fire?

Math
Cells an average of 15 3/5 bushels of corn each day. what integer represents the change in the bushels of corn in his inventory after six days?

Math
Number one which table of values can be used to graph the function Y= - 4X +3

Math
Solve the system: p-3q=-1 -5p+16q=5 a. (2,1) b.(3,3) c. (-1,0) d.(5,2)

Math
Help me with my homework, please! 1. 5/6 x3 A. 8 1/3 B.10 5/6 C. 50/60 D. 5/60 2. 3/7 X 2/3 A. 9/14 B. 1 5/9 C. 2/7 D. 3/12 3. 5/8 X 2/3 A. 7/24 B. 5/12 C. 15/16 D. 16/15 4. 3 3/4 X 2 2/3 A. 6 1/2 B. 6 8/9 C. 8 D.10 5. 2 5/6 X 1 7/8 A. 2 35/48 B. 5 5/16 C. 5 35/48 D. 6 4/16

Math
the table shows the height in inches of stacks of tires extend the pattern what is the height of a stack of 7 tires Help plz numbers Height of stacks of tires x 1 8 2 16 3 24 4 32

math
Find the six trigonometric functions for an angle in standard position whose terminal ray passes through (5, -2).

Linden Math
Ted wanted to share 2!/2 pounds of strawberries equally with 5 friends. How many pounds of strawberries would each person get?

math
kendra was 46

math
How many number of standard bed fit in an area of 15625 square meters

math
How do I find the y-intercept from a table? I know if the table has the x value as 0, and it gives the y value, then that is the y intercept coordinates. But I'm talking about if it doesn't show a zero value for x. So for example, if my table is something like this: Month ...

Math
A 100-kg box is placed on a ramp. As one end of the ramp is raised, the box begins to move downward just as the angle of inclination reaches 15◦. What is the coefficient of static friction between the box and the ramp?

Math
A 500-N tightrope walker stands at the center of the rope such that each half of the rope makes an angle of 10.0◦ with the horizontal. What is the tension in the rope?

Math
An automobile of mass 2000 kg moving at 30 m/s suddenly stopped with a constant braking force of 10000 N. How far does the car travel before stopping?

Math
Two blocks are connected by a string and pulley. On the left side the block weighs 90 grams while on the other side it weighs 110 grams. Assuming that the string and pulley are massless, the magnitude of the acceleration of each block is?

Math
Two forces are simultaneously acting on a 4.0 kg object on top of a frictionless surface. The forces are 12 N upward and 16 N to the right, yielding a net force as shown in the figure. What is the magnitude of the net force F?

Math
How much force is needed to accelerate a truck with a mass of 1500 kilograms from a full stop to 40 m/s in 10 seconds if the rate of acceleration is constant?

Math
Solve the equation 2cos2x = √3 for 0°≤x≤360° I did this: cos2x = √3 /2 2x=30 x=15 x=15, 165, 195, 345 Is this correct? Solve the equation √3 sin2x + cos2x = 0 for -π≤x≤π No idea how to approach this one Thanks a bunch for the help!

Math
n/5≥11 n≥ I multiplied by the reciprocal on both sides n/5 * 5/n which canceled out the n/5 then 11/1 * 5/n 55/1 n≥55 is that correct?

MATH
IT TAKES 5 MEN 7 HOURS TO DIG 9 HOLES, HOW MANY HOURS/MINUTES DOES IT TAKE 1 MAN TO DIG A HALF A HOLE?

Math
What multiplication fact can help you find 7÷7

Math
Your final balance of an investment of \$270 invested at 10% was \$459. For what period of time did you invest?

Math
A basketball has a surface area of 1810 in^2 and a baseball has a surface area of 6 in^2. What is the diameter of a baseball if the diameter of a basketball is 9.5 in^2.

Math
- 7/9 x 3/5 Answer i got is -27/45 is this correct??

Math
A new car is purchased for \$15,000. In 10 years the same car has a scrap value of \$1000.00. The rate of depreciation of its value is constant each year. A determine an equation in the form y=mx+b to represent this situation B how much is the car worth after 7 years.

Math
Given that I take a piece of paper and cut it in half and then in half again. If the paper originally had an area of 187/2 in^2.What is the area of my new paper?

Math
Evaluate: 5^2 + 6•2^2+(4^2+3^2)^0.5 PLz show work

MAth
Evaluate: -3^4+5[3(-4)^2-7]

college math
the half life of Uranium -238 is 4.5 billion years and the age of earth is 4.5 X 109 years. What fraction of Uranium-238 that was present when earth was formed still remains?

Math
There are ten Cortland, seven Gala and eight Macintosh apples in a basket. You pick three apples from the basket. a) What is the probability that three picked apples are all Gala or all Macintosh? b) What is the probability that three picked apples are one Gala and two ...

Math
Use a graphing calculator to solve the equation -3cost=1 in the interval from.0<theta<2pi Round to the nearest hundredth.

Math
1. Which number is a solution of the inequality? 10.6<b A)-18 B)-9 C)7 D)14*** 2. Which number is a solution of the inequality? y+2>8 A)-5 B)-6 C)6*** D)7 3. Which number is a solution of the inequality? 12 < y ( 8 - y ) A. 0 B. 1 C. 2 D. 3*** 4. If N is the set of ...

college math
a medical institution request 1 gram of bismuth-214 which has a half life of 20 min. How many grams of bismuth-214 must be prepared if the shipping time is 2 hours.

Math
Thank you for answering my question but it is not quite right. Uhmm what i want to know is how to get the number of functuonal evaluation of a function. In the paper if it is f(x) it is n, f'(x) it is n^2 where n is the dimension. But how? Where did that come from?? Thankyou ...

math
-2/5x-9<9/10

Math
16 ÷ 4 • 2 = My answer is 2 but my calculator says 8. (Yes I am aloud to use a calculator) IDK what it is, because if I use order of operations shouldn't it equal 2?

Math
For this math problem I am selling 30 pies for \$25 each at the farmers market. I spent \$500. \$200 on the booth and \$300 on all of the pies, each pie costing \$10 to make. I earned \$750 total, making a \$250 profit. c. In Task 1 you determined how much you will charge for each ...

Math
I desperately need help in solving this. -4>/= 4(6y-12)-2y I have not found an answer yet.

Math
I trying to find the density for 1.05 x 10>2kg>3 x 5.9 x 10>24 kg. Can you help me @Ms.Sue

Math
Which of the following functions have graphs that contain no asymptotes? Select all that apply. (2 points) a. power; y=x^n b. reciprocal; y=1/x c. exponential; y=b^x d. logarithmic; y=log b x e. root; y=n(rt(x)) Please help I'm really confused. Thank you!

math
seven and two thirds minus six and a half

math
The function rule T–4, 6(x, y) could be used to describe which translation?