# Math

## Recent Questions

**math**

Imagine that you have five blue socks and five brown socks in a drawer that are not paired up. How many socks must you take out from the drawer(without looking to be sure of getting a pair of the same color?

**math**

(x + 1)^2 / (x - 2) => (x - 2 + 3)^2 / (x - 2) => ((x - 2) + 3)^2 / (x - 2) => ((x - 2)^2 + 6 * (x - 2) + 9) / (x - 2) => (x - 2)^2 / (x - 2) + 6 * (x - 2) / (x - 2) + 9 / (x - 2) => x - 2 + 6 + 9 / (x - 2) => x + 4 + 9 / (x - 2) As x goes to infinity, 9/(x...

**Math - Calculus**

Suppose you live near a bay where the water level fluctuates due to the tides. Your bay is an inverted cone with a radius of 1 mile, and a depth in the center of 100 feet. (There are 5280 feet in a mile.) Water flows through a channel in and out of the bay with the tides. You ...

**math**

hey how do i find the oblique asymptote of (x+1)^2/(x-2)

**Math (Physics)**

What is the resistance of a 3.9-m length of copper wire 1.1 mm in diameter? The resistivity of copper is 1.68×10^−8Ω⋅m. R=______ Ω Please Help. I've been at this for hours.

**Math(Calculus)**

Im having a real difficult time solving this question. Find the absolute extrema of the function. h(x) = e^x^(2) - 4 on [-2,2] Absolute maximum value: at x = Absolute minimum value: at x =

**Math**

During a recent survey of two middle school classrooms, 1/3 of the students reported that they bring their lunch to school. Another 1/4 reported that they buy their lunch in the cafeteria and 1/6 reported going home for lunch. The remaining 18 students reported that they don't...

**math**

Which ratio can form a proportion with 3/7?

**Math**

Evaluate the determinant of each matrix -3 2 -3 0 -1 -1 3 0 -3 My answer is -36 The correct answer is -24 but I don't understand how they got the answer.

**Math(Physics)**

How much energy is stored by the electric field between two square plates, 7.9 cm on a side, separated by a 2.5-mm air gap? The charges on the plates are equal and opposite and of magnitude 15 nC . Answer--> PE=_____ J PE = potential energy? I got this wrong twice. [119805....

**Math**

Kaylea makes punch for 60 students in the band. She fills a 2-quart pitcher 6 times with orange soda. How many gallons of orange soda does Kaylea use for the punch?

**math**

5/8 divided by y/9 = 1 1/8

**math**

is the vertical asymptotes in the numerator or denominator? why? can you please explain you answer

**Math**

Find the inverse for the following matrices: 2 and -4 is on top 6 and 3 is on bottom My answer is 90 120 -180 60

**math**

The length of a rectangle is 4 in longer than its width. If the perimeter of the rectangle is 48 in, find its area.

**Math**

From a pool of six juniors and eight seniors three co captains will be chosen for the football team. How many different combinations are possible if one junior and two seniors are chosen?

**math**

Excited about the success of celebrity stamps, post office officials were rumored to have put forth a plan to institute two new types of thermometers. On these new scales, E° represents degrees Elvis and M° represents degrees Madonna. If it is known that 40°E = 25°M, and ...

**math**

Account A and B each start out with $500. If Account A earns $50 each year and Account B earns 5% of its value each year, after how many years will Account B have more money than Account A? If necessary, round your answer to the nearest year.

**6th grd math**

How can i find the area of a 14inch circle? Thank You so much!

**Math**

The length of a rectangle is three times its width. If the perimeter of the rectangle is 48cm,find its area.

**Math**

Translate the sentence into an inequality. The sum of a number times 10 and 27 is at least −20..... How do I write this????

**Math**

Jack is learning to ride a bicycle. In his first try, he rode for 1/100mile. The second time he rode for 5/100 mile. In the next two tries, he rode successfully for 2/10 mile and lo 4/10 mile Part A What is the total distance he rode the bike in four tries? Use words, numbers...

**Math**

Sofia spins the pointer of a spinner that has 5 equal sections numbered 1 to 5. Choose True or False for each statement. A. It is likely that the pointer will land on a factor of 4. B. It is as likely as not that the pointer will land on an odd number. C. It is unlikely that ...

**Math**

Darrin tosses a quarter and a penny 20 times. He gets heads on both coins twice. Compare the theoretical probability of getting heads on both coins with Darrin’s experimental probability of getting heads on both coins. Why might the probabilities differ?

**Math (HELP ASAP!)**

1. Find the slope of the line that passes through (-2,1), (1,10). a. 3 b. -3 c. 1/3 d. -1/3 2. Which equation represents a direct variation? What is the constant variation? a.3y = 2x + 1; 1 b.y = -5x - 11; 5 c.4y = -12x; -3 d.y + 7 = 2x - 1; 7 3. Suppose y varies directly with...

**Math**

A general point on a curve is P(3+4costheta,2+4sintheta). Show that the locus of P is a circle and find the centre and radius

**Math**

Problem: What is the resistance of a 3.9-m length of copper wire 1.1 mm in diameter? The resistivity of copper is 1.68×10^−8Ω⋅m. Answer--> R=______Ω

**Math**

The experimental probability that a person in the United States has the A+ blood type is 35.7%. The experimental probability that a person in the United States has the AB– blood type is 0.6%. Last week, a blood bank received 224 donations. Predict how many more A+ donations ...

**math**

A line has a slope of 2. It passes through the point (1,2) and (3,y). What is the value of y ? Please help. Is there like a specific difference I'm suppose to find? I'm super confused.

**Math**

what is the recursive rule for the sequence -7.4, -21.2, -35, -48.8, -62.6 an=an-1+13.8 an=an+1+13.8 an=an+1-13.8 <-- or D an=an-1-13.8 <-- or C

**math**

what is the value of b in the equation? 4(b -1)=2b+10 4b-4=2b+10 -2b=14 b=-7 is this right?

**Math - probability**

The experimental probability that a person in the United States has the A+ blood type is 35.7%. The experimental probability that a person in the United States has the AB– blood type is 0.6%. Last week, a blood bank received 224 donations. Predict how many more A+ donations ...

**Math**

Patty tosses a coin and rolls a number cube. 1)Find the probability that the coin lands on heads and the cube lands on an even number 2)Patty tosses the coin and rolls the number cube 60 times. Predict how many times the coin will land on Heads and the cube will land on an ...

**Math**

picking a 7 from a standard deck of 52 cards. a standard deck includes 4 cards of each number from 2 to 10 What is the probability?

**Math**

Artist used squares of colored glass that measured 1/4foot by 1/4 foot. How many colored squares did he use?

**math**

A ten foot long ladder leans against a wall, with the top of the ladder being eight feet above the ground. What is the approximate angle that the ladder makes with the ground? A) 37° B) 47° C) 53° D) 60°

**Math**

Simplify dg-8^6x+9.4

**Math (Physics)**

Problem: What wavelength photon would be required to ionize a hydrogen atom in the ground state and give the ejected electron a kinetic energy of 19.1 eV ? Answer--> λ =______nm [Note: I got 3.8x10^-8. I got it wrong twice] My steps: (32.7 eV)(1.6x10^19)= 52.32x10^-19 Next...

**Math (Physics)**

Problem: An excited hydrogen atom could, in principle, have a radius of 2.50 mm . ________ Part A: What would be the value of n for a Bohr orbit of this size? Answer--> n= 6.87×103 _______ Part B What would its energy be? Answer--> E=_______eV [Note: I got 4.61x10^-26 ...

**Math**

6 times the difference of a number and 9 is 18 less than the number. I need to write out as an equasion. Help!

**Math Questions Mrs Sue Help**

4t – t – 1 = 17 T=? 4r – 3r – 1 = 2 r=? 12 = -4(d + 13) d=? 12 p = 4 p=? -4n – 18n + 4 = -18 n=? These are really confusing

**Math**

Jim owns a small business. There was a loss of $26 on Thursday and a loss of $11 on Friday. On Saturday there was a loss of $9, and on Sunday there was a profit of $13. Find the total profit or loss for the 4 days.

**Mrs Sue Math**

5d + 13d = -18 D=?

**MATH**

The perimeter of the base of the regular quadrilateral pyramid is P = 30 cm. Find the sum of all edges of this pyramid, if the perimeter of a lateral face is 27.5 cm

**Math**

The perimeter of the base of the regular quadrilateral pyramid is P = 30 cm. Find the sum of all edges of this pyramid, if the perimeter of a lateral face is 27.5 cm

**math**

The patient is seen by his family physician for follow-up treatment of recently diagnosed asthmatic bronchitis. The physicianâ€™s fee is $75. The patientâ€™s copayment is $20, and the patient is not required to pay any additional amount to the provider. The payer ...

**math**

Part A: Using the graph above, create a system of inequalities that only contain points D and E in the overlapping shaded regions. Explain how the lines will be graphed and shaded on the coordinate grid above. (5 points) Part B: Explain how to verify that the points D and E ...

**math**

To determine whether there is a relationship between the type of school attended and verbal reasoning scores for Irish students, three samples with 25 students, in each group, were randomly selected from data used by Raferty and Hout (1985). One group of students attended ...

**Math**

Write the following pairs as like fractions: (a) 87.3/8.73

**Math**

Each letter of the English alphabet is written on a scrap of paper and put in a hat. P(J) = start fraction 1 over 26 end fraction. What type of probability is illustrated and why? (1 point) theoretical; the result is based on the number of possible outcomes* theoretical; the ...

**math**

Forty-eight sheep live on the farm. Thirty-six cows also live on the farm. What is the ratio of sheep to cows

**Math**

Prove the side of triangle is is produced then the exterior angle formed is equal to the sum of two interior opposite angle

**Math**

there is a track next to the barbecue area the track is 1/4 mile long. a group of students have a relay race. they run around the track 4 times. draw a number line to show how many miles the students can. use 0 and 1 as points on your number line. divide the number line into ...

**Math**

Mrs. Lin brings 6 trays of hamburger buns to the barbecue. 2/3 of the trays have wheat buns. How many of the trays have wheat buns? Draw a diagram to solve the problem.

**Math**

Milos bring 12 hamburgers to the barbecue. He puts cheese on 4 hamburgers. Draw to show the fraction. Write two equivalent fractions. Explain why they are equivalent fractions

**Math**

What is the surface area of the square pyramid represented by the net?

**MATH**

Bobbie wants to plant a flower garden in her yard. She raked out the circular garden area shown below. Now she wants to estimate the area of the garden. Bobbie knows that her rake is 5 feet long. Which estimate is closest to the area in square feet of the garden? 60 310 180 80

**Math**

How do I write 90,000,000+5,000,000+900,000+60,000+200+80+5 in standard notation

**math**

4. What is the slope of the line that goes through (6, 5) and (3, 1)? 3/4 - 3/4 4/3 - 4/3 5. the slope of the line that goes through (-3, -5) and (-3, -6) is ______. positive negative zero underfined

**math**

In 2002 Lamal was 21 years old. In 2005 Jamal will be three times as old as Malcolm. a) How old will Malcolm be in 2005 b) How old was Malcolm in 2002?

**Math**

If an architect made a drawing of a swimming pool with a length of 15 inches and width of 4 inches. And the scale she used is 1 inch= 3.5 feet, what are the actual dimensions of the swimming pool?

**math**

In 2002 Lamal was 21 years old. In 2005 Jamal will be three times as old as Malcolm. a) How old will Malcolm be in 2005 b) How old was Malcolm in 2002?

**Math (ugh)**

Solve the problem. Make sure your answer is in simplest form and improper fractions are expressed as mixed numbers. 3 3/4 x 2 4/5 = ?

**Math**

Did John Cena ever do math? It doesn't look like he did..

**Math**

There was 30 students in the class 24 of these studen pass the test what percentage of these students passed their test

**math**

log10x+log4x=2. Find x value

**Math 1**

48x^3 - 128x^2 -56x -16 please help. Poloynomials

**Math 1**

392n^4 + 168n^3 + 168n^2 +72n

**Math 1**

80x^4 - 60x^3 - 60x^2 - 45x

**Math**

1. x^9/X^2 x^11 X^7 7 X^5

**math**

Kim is making rectangular greeting cards. Each card has an area of 12 square inches and the length is 1 inch more than the width. Find the length and width of her cards.

**Math**

Find the degree of -5w^3-4w^2+7w+16 A. -5 B. 16 C. 14 D. 3 I don't understand polynomials can sometime help me?

**math**

the sum of two numbers is 31 and their difference is 7 what are the two numbers?

**math**

Mr. Gaines is catering his company picnic. He will pay $18.45 for 3 people to eat the barbecue lunch. At this rate, how many people can Mr. Gaines afford to feed on a budget of $195.00?

**Check my math question please? Very urgent!**

The commute times during rush hour traffic on a local interstate have a mean of 25 minutes and a standard deviation of 5 minutes. Repeated studies of this section of interstate are considered normally distributed. What percent of commuters drive between 20 - 25 minutes to work...

**Math**

Eight students share 5 blocks of modeling clay equally. What fraction of one block of modeling clay does each student get?

**Math**

There are 45 M&M in the bag. Your brother ate 2/3 them. How many did he eat.

**Math**

Camille has 8 feet of rope. She cuts the rope into 1/3 foot pieces for a science project. How many1/3 foot pieces of rope does she have?

**Math**

Solve ?

**math**

A man spends 1/2 of his salary on fees.2/3 on rent and rest on food. if he spends sh40,000 on food.What is the man's salary?

**Math**

Topic: Water Footprint. City of New York 2011 rate of 7.64/100 cubic feet of water. Calculate the cost of each of the following based on this rate. Use the conversion factor of 7.48 gallons per cubic food. A. A standard washing machine uses approximately 50 gallons of water ...

**Math**

Suppose a person were to breath an average of 16 times per minute. How many years would it take for them to breath one billion times? Assume there are 365 days in one year. Round your answer to the nearest single year.

**Functions (Math)**

The point P(2, -5) is located on the terminal arm of an angle θ in standard position. a) Draw and label an appropriate diagram. Remember to label θ and all the sides of the triangle. b) Determine the exact values of the primary trigonometric ratios for angle θ. c) Determine...

**Math**

You have 6 bracelets and 15 necklaces. Find the number of ways you can wear one bracelet and one necklace.

**MAth**

PQRS IS A RECTANGLE AB=25CM, BC=15CM .IN WHAT RATIO DOES BISECTOR OF ANGLE C DIVIDES AB?

**MAth**

IN RECTANGLE ABCD ,AB=25CM, BC=15CM. IN WHAT RATIO DOES BISECTOR OF ANGLE C DIVIDES AB?

**Math**

$24,000X0.04X30years (deposit of $24,000 and compound interest monthly of 4% for 30 years ?

**Math- PLEASE HELP. I DONT UNDERSTAND THIS QUESTION**

What is the formula for base, b, of a triangle if the area is A and the height is h?

**math**

A regular hexagonal pyramid has a perpendicular height of 42.0mm.If the distance across the flats of the hexagonal base is 18m find the volume and the lateral surface area of the pyramid.

**Math**

The bottom of a picture five feet tall is four feet above the level of an observer's eyes. How far from the wall on which the picture hangs should the observer stand in order that the picture subtends the greatest possible angle at the observer's eyes?

**Math**

Suppose that an animal's circadian rhythms tell it to eat a meal every 4h. How meals will the animal eat each day.

**Math- Please help**

Al and Bill live at opposite ends of the same street. Al had to deliver a parcel to Bill’s home, Bill one at Al’s home. They started at the same moment, each walked at constant speed and returned home immediately after leaving the parcel at its destination. They met the ...

**Math geometry**

The surface area of a cube is 96in2.what is the volume of the cube?

**Math**

If <1 and <2 are supplementary, then <1 and <2 form a linear pair

**math**

1-A matching card game contains 48 cards. Each card shows a piece of fruit, and there are 8 cards of each fruit in the deck. What is the probability of randomly selecting a picture of a banana? 6 1 1 8 5 6 1 6 2.A standard deck of 52 cards contains 4 aces. What is the ...

**math help please check my answer**

A roofer is standing on the roof of a house 60 ft above the ground. His truck is parked 25 ft from the house. What is the angle of depression from the roofer to his truck? Round to the nearest whole degree. 22° 23° 67° 68° <my answer choice

**Math**

If <1 and <2 are supplementary, then <1 and <2 form a linear pair

**math**

You place a bet on the number 21 in roulette. The probability of winning is 1 38 , and the company hosting the casino night for a city fundraiser gives the payoff odds as 35:1. What are the odds that the ball will land on the number 21? 1:37 1:38 1:35 1:21

**2 math questions, urgent plz help!!**

The line with equation a + 2b = 0 coincides with the terminal side of an angle θ in standard position and cos θ<0 . What is the value of sinθ ? −1/2 <my answer 5√ 5√/5 −25√/5 The line with equation x−y=0 coincides with the terminal side of an angle θ in...

**Math**

Solve 24,000X0.04X30years=