# Math

## Recent Questions

**Math Please Help me**

find the area of the parrallelogram with a base of 372.5 cm and a height of 17.6 cm A) 398.8 cm2 B) 327.8 cm2 C) 13,112 cm2 D) 6,556 cm2 My guess is B but i need help

**Math**

Find the perimeter of a regular 360-sided polygon that is inscribed in a circle of radius 5 inches. If someone did not remember the formula for the circumference of a circle, how could that person use a calculator’s trigonometric functions to find the circumference of a ...

**Math (Physics)**

A galaxy is moving away from Earth. The "blue" hydrogen line at 434 nm emitted from the galaxy is measured on Earth to be 458 nm . Part A How fast is the galaxy moving? Answer--> v=____ c Part B How far is it from Earth based on Hubble's law? Answer--> d=____ ly [Please ...

**Math**

What is the formula to finding slant height in a pyramid? Thanks!! :)

**Math**

How to write 26 April 2017 in 5 letters without digit

**math**

You roll a number cube twice. Find P (even, then not 2). Write the probability as a fraction in simplest form. I'm fully clueless to the answer to this question. Can someone please help me out? Thanks Very Much and need the answer A.S.A.P!

**Math**

My Father went shopping with a sum of money. He spent 1/2 of her money plus 50 pesos on a belt. He then spent 1/2 of the remaining money plus 30 pesos on a pair of sandals. Finally he spent 1/5 of what was left plus 20 pesos on a T-shirt . He was left with 15 pesos. How much ...

**math-precalculus**

Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature varies between 73 and 87 degrees during the day and the average daily temperature first occurs at 8 AM. How many hours after midnight, to two decimal places, does the ...

**Math, Algebra, Graphing Systems of Linear Equation**

I'm confused about graphing or solving the linear equations for slope/intercept. Here is what I solved: 3x+2y=-6 X-4y=-16 2y= -3x-6 -4y=1x-16 Y=-3/2+3 Y=+1/4+4 ------------- My answer for graphing the systems for the lines to intersect...well, they didn't intersect. But the ...

**Math, Algebra, Graphing Systems of Linear Equation**

I'm confused about graphing or solving the linear equations for slope/intercept. Here is what I solved: 3x+2y=-6 X-4y=-16 2y= -3x-6 -4y=1x-16 Y=-3/2+3 Y=+1/4+4 ------------- My answer for graphing the systems for the lines to intersect...well, they didn't intersect. But the ...

**6th Grade Math (Please Help It's Getting Late)**

Roger visted a ski and snowboard shop the other day to buy a new snowboard. The store said it was having a sale, today only. 20% off all new 2016 Burton Snowboards. Usually these snowboards cost $300 when they're not on sale. Roger told his friend John they are only $60 today...

**math**

How many degrees did the minute hand turn. 4.20p.m

**Math**

on a map 1/2 inch represents 50 miles. How long would a line need to be to represent 750 miles. so I thought I should divide 750 by 50 than multiply 15 { the answer I got } by 1/2 but I have a feeling its wrong

**Math**

a fund has 50,000 in it's account.if it earns 9.79%,how much interest will it have after 459 days? Note: It is a compound Interest.

**Math**

How many yards do you need to make 15 t shirts with only 3/4 yards please explain

**math**

Find the pressure exerted by the atmosphere on a car window which is 30 cm tall and 40 cm wide if atmospheric pressure is 101,000 Pa. (Remember that a Pa = N/m2)

**Math 8**

write a linear equation that models you borrow $120 from your brother. You plan to pay him $15 per week towards the loan. 120=15x or y=15x-120

**Math**

. In how many different ways can Tim, Savannah, Ian, Haley, Kaash, and Myles line up? 2. There are 15 contestants in a boy’s cross country race. 3 ribbons will be awarded. How many different ways could the ribbons be awarded? 3. How many different ways can the letters H D R ...

**Please help with MATH**

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**

if a note has a frequency of 220 hz find the frequencies of the notes one two and three octaves

**math**

1. Find the area of a parallelogram with base b and height h. b = 87 cm h = 18.6 cm (1 point) 105.6 cm2 211.2 cm2 809.1 cm2 1,618.2 cm2 2. Find the area of the triangle. A triangle has a base of 21 yards and a perpendicular height of 8.2 yards. (1 point) 33.62 yd2 86.1 yd2 344...

**math**

given cot theta = 11/12, find tan of theta and sin of theta

**MAth**

Which of the following types of information is NOT suited for display on a double bar graph? A. population of boys and girls at three different schools. B. Numbers of records versus compact discs sold each week during a one month period at The Music Den. C. the weekly interest...

**Math-Please Help**

20. Suppose a population of 175 crayfish doubles in size every month. The function f(x)=175(2^x) gives the population after x months. How many crayfish will there be after 1 year? A) 2,100 B) 4,200 C) 716,800 D) 61,250 I think the answer is D. Am I correct?

**Math**

Which function table is correct for this rule : Y = x/2 + 4 (cant copy and paste) A (my answer) B C D

**Please help with MATH**

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 ...

**Connections math help**

the equation is 3d + 2 equals 29 can be used to find the height of a bean plant days after it was purchased how many days has it been since the plant was purchased A.7.6 B.8 C.9 D.10.3

**math**

A mountain bike tire has a diameter of 26 inches. To the nearest foot, how far does the tire travel when it makes 32 revolutions?

**math**

Identify the dependent variable in the relationship. A person burns a total of "c" calories by walking "m" miles. 1)calories 2)miles 3)neither "c" calories or "m" miles 4) both "c" calories and "m" miles I THINK #2, not sure because we have not gone over independent/dependent ...

**Math**

Suppose that the local sales tax rate is 3% and you purchase a car for 27,700, how much tax is paid

**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