# Math

## Recent Questions

**Math**

Is sum of two whole number a natural number?

**Math**

Solve the inequality. y + 3 ≤ 5 y ≥ 2 y ≤ 8 y ≤ 2 y ≥ 8

**Math**

Mass of a chicken A 50grams B50 kilograms

**Math**

Please Check My Answer: Find the probability that you throw a dart and land in the region labeled "G" Here is a link to the image: I can't place it in here, but if you google the question, the very first image that pops up (A square with different colors and a yellow line ...

**Math**

How would you solve this problem? Please include steps for me! Solve for θ in the interval 0 ≤ θ ≤ 2π: cos(θ )sin(θ ) − 1/ 2cos(θ ) = 0

**math**

1. How many ways are there to put 5 balls in 2 boxes if the balls are distinguishable but the boxes are not? 2. How many ways are there to put 6 balls in 3 boxes if the balls are distinguishable and the boxes are distinguishable? 3. How many ways are there to put 6 balls in 3 ...

**Math**

Which expression equals 6x − 5y + 2 − 8x + 3( y + 5)? A) 3x − 2y + 17 B) −3x + 2y + 17 *** C) −2x − 2y + 17 D) −2x − 2y − 17

**Math**

There are 14 NBA teams who do not make the playoffs. Of these teams, 3 of them will be randomly selected to make the 1st, 2nd, and 3rd pick. How many different ways can the 1st-3rd pick be arranged?

**Math**

Please Check My Answers!!! What is the type of conic section is given by the equation x^2-9y^2=900 and what is the domain and range? Answer: Type is hyperbola, Domain is all real values of x, not sure what the range is. Please explain how to find these What are the vertex, ...

**math**

A farmer's land is separated into sections of size 215 acres. Suppose there are 449 such sections. How many acres of land does the farmer own? Write your answer as a mixed number in simplest form.

**Math**

The bearing of point Y from a point X is 048°. If Y is 115km away from point X and the bearing of point Z from Y is 120° at a distance of 75km. Find the distance between X and Z, using a scale of 1cm to represent 20km

**Math**

You have $5 for lunch. You bought a turkey sandwich for $2.25. A. Write an inequality that represents how much more money you can spend. B. Solve your inequality. I just don't get this question, can anyone help me with this? Thanks!

**Math**

A deer population was measured to be 4000. Two years later , it was measured to be 4300. assume the population grows exponentially. A). Write an equation describe this situation. Find values of all constants. b) What will the population be four years after the first ...

**Math**

Find the simple interest of $500000 at an annual rate of 5.6% for 9 months.

**Math**

I'm having trouble getting through these types of problems: Can someone tell me how to approach this? The point (8, -4) is on the graph of y=f(x). Find the corresponding point on the graph of g(x)=3f(1/2x)+11 Any assistance would be greatly appreciated! -Brett

**Math**

The fourth term of an arithmetic sequence is 18 and the sixth term is 28. Give the first 3 terms

**math**

How many possible distinct 5 card hands can be dealt from a standard 52 card deck? The order in which the cards are dealt doesn't matter. I know it ISN'T 52 choose 5 because the cards have to be DISTINCT, or DIFFERENT.

**math**

Julie baked cupcakes for her family at home and for a party at school. She iced 4 cupcakes with red frosting, 2 cupcakes with orange frosting, 2 with yellow, 2 with green, 3 with blue and the last 3 with violet frosting. Each cupcake is iced with exactly one color of frosting...

**Math**

For questions 2 and 3, use a calculator to find the values of the inverse function in radians. sin^-1(0.65) 0.71 + 2pi n and –0.71 + 2 pi n 0.71 + 2 pi n and –3.85 + 2 pi n 0.86 + 2pi n and –0.86 + 2pi n –0.61 + 2pi n and 2.54 + 2 pi n tan^-1(-0.09) –0.09 + 2pi n No ...

**algebra**

A math class has 3 girls and 7 boys in the seventh grade and 2 girls and 2 boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both boys?

**Math**

It cost a family $348 to buy a 15ft by 26ft rug. If the cost is proportional to the area, what will it cost the family to buy a 7.5ft by 8ft rug 89.66 188.50*** 249 87

**Math**

A watch loses 30 second hour. If the watch was set right on Sunday at 11:30 p.m. What day and time did it show after 10 hours? 10 * 30 = 300 5 min

**Math**

The cost of a student ticket to the school play is $7. Write an equation that correctly relates thecost, c, for a particular number of student tickets, s, purchased. Identify the independent and dependent variables. I dont get this question everyone keeps saying C=7S and i ...

**math**

There are 2.2 pounds in one kg.If Mary Catherine has 2.5 kg hamburger meat for her cookout ,how many pounds of hamburger meat does she have.

**Math**

Sofa is on sale for 28% off. Sale price is $666.00. What is regular price?

**Math**

1) in a possible class, Rosa will take a total of 4 tests. She has already taken 2 of the tests and received scores of 81 and 83. What is the least possible score Rosa can obtain on the third test to still obtain an average score of 85 on all 4 tests? (Assume Test scores can ...

**math**

what is the surface area of 16ft on the bottom 8ft on the right and 5ft on the left???????????????

**Math**

Austin must choose a number between 67 and 113 that is a multiple of 3, 8 and 12. Write all the numbers that he could choose. If there is more than one number, separate them with commas.

**Math**

Suppose you are researching the eating habits of people your age. What sampling method could you use to find the percent of students in your grade who eat five servings of fruit and vegetables each day? What is an example of a survey question that does not have bias? I have ...

**Math**

a pond is 36 m long. a duck swims 4 lengths of the pond each day. how far does the duck swim in 4 we

**math**

Today my daughter's age is one sixth of my age. If I was 40 years old two years back, what is my daughter's age today?

**Math**

The road is 7m wide. The corner is in the shape of a quarter of a circle. the inside radius of the corner is 70m. Ali walks rounds the corner on the inside, from A to B. Obi walks round the corner on the outside, from C to D. How much further does obi walk than Ali?

**Math**

an arch of a bridge is made by bending a steel beam into the shape of a semi circle, if the span (diameter) of the arch is 20m, use the value 3.14 for π to find the length of the steel beam to the nearest meter

**English**

1. Mom can solve this problem. 2. Mom can solve this math problem. ------------------------------------------------ What does #1 mean? Can #1 mean #2? Can #1 mean that she can solve a problem in life?

**math**

if you have a 6 foot canvas and cut off 4 inches then how many feet would be left

**Math**

Every time mr coleborn throws a ball of paper in the garbage can, the probability the ball goes in the can is 3/4. What is the probability he misses 2 times in a row?

**MATH ASAP**

Two helicopters ﬂying at the same altitude are 2000m apart when they spot a life raft below. The raft is directly between the two helicopters. The angle of depression from one helicopter to the raft is 37° and the angle of depression from the other helicopter is 49°. Both ...

**Math**

Is the product of 4/7 and radical 16 a rational or irrational number? Explain.

**MATH!!**

find the total number of possible outcomes for 4 different cell phone models, each of which has 3 different plans. A.7 B.12 C.16 D.24 my answer is 12 please tell me if its correct if not can yo help me find the right answer thankyou

**math**

which values can be substituted for x to make the inequality x - 4 >0 true? choose all that apply A. 0 B. 3 C. 4 D. 18 my answer is 0 and 4 please check my answer's

**math**

Fiona is repairing the wiring on a radio broadcast tower. She is in the basket of the repair truck 40m from the tower. if she looks up at an angle of 42° she can see the top of the tower. She can see the base if she looks down at an angle of 32°. How high is the tower?

**math**

9. which set of output values correctly completes the function table? y=6-x input (X) output (y) -2 ? -1 ? 3 ? ----------------------- 4,5,3 -8,-7,3 8,7,3 11. What is the function rule shown by the table? input(x) output(y) -2 -3 0 1 1 3 2 5 --------------------- y=x-1 y=x+2 y...

**Math**

9. which set of output values correctly completes the function table? y=6-x input (X) output (y) -2 ? -1 ? 3 ? ----------------------- 4,5,3 -8,-7,3 8,7,3 11. What is the function rule shown by the table? input(x) output(y) -2 -3 0 1 1 3 2 5 --------------------- y=x-1 y=x+2 y...

**math probability**

A biased coin lands heads with probabilty 2/3. The coin is tossed 3 times a) Given that there was at least one head in the three tosses, what is the probability that there were at least two heads? b) use your answer in a) to find the probability that there was exactly one head...

**Math**

A vendor. Sold 2/5 of fruits to motorists and 1/4 to students. He also sold 3/7 of the remaining fruits to others. If the vendor was left with 168 fruits, how many fruits were sold to students?

**math**

it takes joh 2 hours to finish working in a yard, mark can work on the same yard for 3 hours. how long will it take both of them if they work as a team?

**Math**

A businessman borrowed sh 40000 from a lending institution at a simple interest rate of 2 1/2 % per month. How much did he pay back at the end of one year?

**Math**

What is the next number in the pattern 3, 10, 5, 12, 7, 14, 9, 16, ...?

**MATH ASAP**

A rectangular ﬁeld is to be fenced in on four sides with a fifth piece of fencing placed Parallel to one of the shorter sides, so that the ﬁeld is split in two parts. If 1600 m of fencing is available, ﬁnd the largest possible area for this enclosure. What dimensions ...

**MATH ASAP**

Justin is riding in a hot air balloon, directly over Ben, who is standing on the ground. Justin spots Patti on the ground at an angle of depression of 27 degrees. The balloon rises 35m. Now the angle of depression to Patti is 36 degrees. How far is Patti from Ben?

**math**

In pushing a desk a distance of 2.0 meters, a student accomplished 300.0 joule amount of work. How much force was expended?

**math probability**

prove that (n choose k) = (n-1 choose k-1) (n-1 choose k) a) By using formula of (n choose k) b) by breaking subsets of size k into two mutually exclusive classes, one class comprising all those subsets which contain a given element and the other all those which dont

**math/algebra**

Find the greatest possible error for the given measurement if it is to the nearest 10 miles. 150 mi

**Math**

An architect is designing an atrium for a hotel. The Atrium is to be rectangular with a perimeter of 728ft of brass piping. What dimensions will maximize the area of the atrium?

**Math**

The fourth term of arithmetic sequence is 18 and the sixth term is 28. Give the next three terms.

**Math**

Give the next three terms of the sequence 5, 9, 13, 17, 21, 25,... Then graph the sequence.

**Math**

In the arithmetic sequence -7, -4, -1, 2,..., what term is 44?

**Math**

Sarah makes $13.65 an hour her percentage raise was 3.5% what is her new hourly rate

**math**

Carl Sonntag wanted to compare what proceeds he would receive with a simple interest note versus a simple discount note. Both had the same terms: $19,500 at 8% for 2 years. Use ordinary interest as needed.

**Math**

The area of a rectangular poster is 30 square inches if the width of the poster is 5 in how tall is the poster

**math**

you are creating identical candy bags using 18 chocolate bars and 30 peanut butter cups. What is the greatest number of bags you can fill using all the candy

**Math**

Is it correct to say A × A = {(a, a) : a ∈ A}?

**math probability**

prove (n choose k) = (n choose n-k)

**Math**

Suppose that y varies inversely with x and that y = 2 when x = 8. What is an equation for the inverse variation? ASAP PLEASE

**Math**

1) Carlos and Nathan ate lunch together in a park bench. At 1:00p.m., they left the bench and walked in different directions. By 1:05p.m., Carlos and Nathan were 60 meters apart. If they each continued walking in a straight line at the same speed as before, how far apart will ...

**Math**

A train leaves a station and travels north at a speed of 75mph. Two hours later, a second train leaves on a parallel track and travels north at 125mph. How far from the station will they meet?

**math**

.. You were offered the opportunity to purchase either a simple interest note or a simple discount note with the following terms: $33,353 at 7% for 18 months. based on the effective interest rate, which would you choose

**math probability**

A biased coin lands heads with probabilty 2/3. The coin is tossed 3 times a) Given that there was at least one head in the three tosses, what is the probability that there were at least two heads? b) use your answer in a) to find the probability that there was exactly one head...

**Math**

Find two consecutive odd integers such that the square of the first, added to 3 times the second, is 24.

**Math**

Rajesh distributed his capital 1/2 of the capital to his wife 1/3 to his son & remaining 50000 to his daughter.find total amount of his capital

**math**

Show that 5x7^n+3+11^n-8 is always divisible by 3 for all numbers for n

**Mico- Econ**

You have an hour between your economics and math classes. What is the opportunity cost of that time if you use it to complete your math homework instead of your economics homework? the economics homework you could have completed the math homework you chose to complete the ...

**math**

a plane is steering at S83degE at an air speed of 550 km/h. The wind is from N70degE at 85 km/h. Find the ground velocity of the plane to 1 d.p.

**Math**

A ship is travelling with a velocity (30i- 42j), and a trolley is being pushed relative to the ship with the velocity (-5i- 6j). A fly is crawling on the trolley with relative velocity ( -i- 1/2j - k). a) calculate the velocity and the speed of the relative to the Sea. all ...

**math**

Write the expression as the sine, cosine, or tangent of an angle. sin(2π/9)cos(3π/8)+cos(2π/9)sin(3π/8)

**math**

Use the fundamental identities to simplify the expression. cos(x)(1 + tan2(x))

**math**

Find the exact value of the expression. cos(π/16)cos(3π/16) − sin(π/16) sin(3π/16)

**math**

Solve the system. {x^2 + y^2 = 85 {3x + y = 15

**math**

Use the Law of Sines to solve the triangle. (Round your answers to two decimal places.) A = 76°, a = 38, b = 29 B = C = c =

**math**

if vector U= (1,-3,-2) and vector V= (4,-5,3) find | u+v-5j |

**math**

Find the exact value of each trigonometric function. sin(θ)= 3/5 cos(θ)= 4/5 tan(θ)= 3/4 1. cos(2θ)= 2. tan(2θ)= 3. cot(2θ)= 4. sec(2θ )= 5. csc(2θ)=

**Quadratics - math**

A rocket is shot into the air and follows a parabolic path given by h = -4.9t^2 + 58.8t + 8.6 where h is the height of the rocket above the ground in meters and t is the elapsed time in seconds. Determine how long the rocket will be above 150 m.

**math**

Statuary Hall is an elliptical room in the United States Capitol Building in Washington, D.C. The room is also referred to as the Whispering Gallery because a person standing at one focus of the room can hear even a whisper spoken by a person standing at the other focus. A ...

**math probability**

A biased coin lands heads with probabilty 2/3. The coin is tossed 3 times a) Given that there was at least one head in the three tosses, what is the probability that there were at least two heads? b) use your answer in a) to find the probability that there was exactly one head...

**math**

6x-2=0 find the value of x. How would you work this out?

**Math**

A user is charged php300 monthly for a particular mobile plan, which includes 100 free text messages. Messages in excess of 100 are charged php1 each. Represent the amount as a function of the number of messages m sent in a month.expressed by the piecewise function.

**MATH**

Q: Marissa Is researching information about martial arts students. She found that 7 out of 12 martial arts students practice each day. there are 144 students at her school. Part A: Predict how many students practice every day. Part B: What Is The Sample Size? I Think the ...

**math**

Find the asymptotes of the hyperbola. (x^2/36) - (y^2/49) = 1

**Math help now**

On Friday night the local diner serves three main entrees, each with a choice of vegetable. The entrees are beef, chicken, and fish. The vegetables are spinach, broccoli, and carrots. How many possible dinners ( entree and vegetable combinations does the diner serve. List them.

**Math help..**

The spinner is divided into equal parts. Use a tree diagram to find the probability that the spinner will land on a consonant the first time and a vowel the second time if the spinner is spun twice My spinner has 3 parts, N E and U A:2/3 B:2/9 C:3/4 D:5/9 I think the answer is...

**math**

You roll a number cube twice. Find P (even, then not 2). Write the probability as a fraction in simplest form. plaz help

**MATH**

The table shows the drink preferences of 50 shoppers at the mall. What is the probability that one shopper, selected at random from the 50 surveyed, preferred either Drink B or Drink A?

**Math help asap**

A single, standard number cube is tossed. What is the probability of getting a number greater than 3? A. 2/3 B. 1/3 C. 1/6 D. 1/2

**math**

Given the formula y = 2x(z+3) find y if z =2 and x=4 I got 40

**math**

The measure of the arc created by a central angle is 57°. What type of arc is this? minor arc major arc semi-circle

**math**

the bill you pay is $720 a year.if you pay it monthly, you will pay $70/month. thats a monthly $840 each year. How much would you need to save each month?

**math**

find the first and the 15 ters of an arithmetic sequence whose fifth term is -1 and ninth term is 11.

**Math**

Burton Bush wants to retire in Arizona when he is 80 years of age. Burton, who is now 55, believes he will need $400,000 to retire comfortably. To date, he has set aside no retirement money. If he gets an interest rate of 6% compounded annually, he will have to invest today (...

**Math**

The effective rate of a 25,000 Non-interest-bearing simple discount 10% 90-day Note is A) 10.26% B)10.62% c)10.8% d)10%

**Math**

The percentage method aids in calculating a)SUTA B)FICA C)FUTA D)FIT