2,563 Answered Questions for the topic Maths

Maths Physics

05/24/20

PLS ANSWER VERY FAST URGENT !!!!!!!!!!!!!!!!!
A newspaper seller is riding a bicycle with a pile of newspaper in his basket.He drops the newspaper in the entrance of every house as he passes bywithout slowing down his cycle. He passes house... more
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Maths Mathematics

05/22/20

Surface area cube

A cube of lead of sides 8cm is cut into cubes of sides 2cm. Find the surface area of the large cube and the total surface area of the small cubes to determine by how much the surface area has... more
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Maths

05/22/20

find the area of a rectangle if the length is 5x and the width is 5x-4
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05/20/20

I am having an issue finding the correct amount. Ive tried the simple interest formula and the compound interest formula
$20,000 is loaned at a simple interest rate of 8% for 90 days. Find the total amount that must be repaid at the end of the 90-day period. (Round your answer to the nearest cent.)the answer is... more
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05/19/20

Help! Multiply the following and list the excluded values - x2-8x+16/x2-7x+10 • x2-12x+35/x2+3x-28
x2-8x+16/x2-7x+10 • x2-12x+35/x2+3x-28
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05/19/20

do not know what I am doing wrong
Suppose you won $730,000 in the lottery and deposited the money in a savings account that paid an annual rate of 8% interest, compounded daily. How much interest would you earn in a year? (Round... more
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05/19/20

I used A=P(1+r/n)^nt to solve but I've gotten it wrong
$20,000 is loaned at a simple interest rate of 8% for 90 days.
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05/19/20

having issues solving and rounding up
A deposit of $19,000 is placed in a savings account that pays 3.2% interest, compounded daily. How much money can be withdrawn at the end of 8 years if the principal is to remain in the bank?... more
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Maths Geometry

05/19/20

In quadrilateral ABCD, ∠ABD = ∠BCD = 90°. ∠DAB = 48°, ∠ADC = 106° and BC = 7 cm. Calculate the length, in cm to 3 significant figures, of (a) BD, (b) BA
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Maths

05/18/20

The radius of the sector formed from a cone
A cone whose base diameter and vertical height are 24cm and 5cm respectively is unfolded to form a sector of a circle. Calculate1) The radius of the sector2) The angle of the sector
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05/18/20

Im sure i did all the steps right
$20,000 is loaned at a simple interest rate of 8% for 90 days. Find the total amount that must be repaid at the end of the 90-day period. (Round your answer to the nearest cent.)i got the answer as... more
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05/18/20

if 121 people attend a concert and tickets for adults cost $3.25 while tickets for children cost $2.75 and total receipts for the concert was $356.25 , how many of each went to the comcert ?
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05/18/20

so ive gotten it wrong when it comes to rounding to the nearest 1%
Find the discount, the discount rate, and the reduced price for a box of cereal that normally sells for $3.29 if a shopper presents the coupon at a store that doubles the value of the coupon.... more
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05/18/20

having issue solving this question
Find the discount rate on a Segway PT shown in the advertisement. Round to the nearest one percent.original price: $5,200reduced to: $4,450_________%
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05/18/20

having issue solving this question
Find the discount, the discount rate, and the reduced price for a box of cereal that normally sells for $3.29 if a shopper presents the coupon at a store that doubles the value of the coupon.... more
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05/17/20

Quadratic Equations
Two students A and B were asked to solve a quadratic equation ax² + bx + c = 0 , a ≠ 0 . A made some mistakes in writing ' b 'and found the roots as 3 and -1/2 . B too made mistake in writing ' c '... more
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Maths

05/17/20

Harry wants a fence around his garden
Harry wants a fence around his garden.16.3m width16.7m heightWhat is the perimeter of the whole garden? 
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05/17/20

PLEASE HELP ME SOLVE THIS QUESTION
Suppose that f : [0, 3] → R is continuous on [0, 3], differentiable on (0, 3) and f(0) = 0, f(1) = 1, f(3) = 1. Show that there exists c1 ∈ (0, 3) such that f'(c1) = 1. Show that there exists c2 ∈... more
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05/17/20

Write the equation that correctly shows the area of the triangle in terms of its height, h. PLEASE HELP!
A carpenter is building a set of trusses to support the roof of a residential home. In the blueprints, she has determined that she needs to make a support triangle with an area 56m2 . She knows... more
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05/17/20

Please Help Me With This Math Question!!!
Write the equation for the following function that represents a horizontal shift left 4 and a vertical shrink by a factor of ½ on the parent function f(x) = x ^ 2
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05/16/20

Partial differential equation

u_x=(1/sqrt(-y))*u_y what is the general solution for u?
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05/15/20

One canned juice drink is 20​% orange​ juice; another is 5​% orange juice. How many liters of each should be mixed together in order to get 15L that is 9​% orange​ juice?
One canned juice drink is 20​% orange​ juice; another is 5​% orange juice. How many liters of each should be mixed together in order to get 15L that is 9​% orange​ juice?How many liters of the... more
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05/15/20

How should I do for this question?
Two particles, A and B, have masses 2m and 3m respectively. The particles are moving in the same direction along the same straight line on a smooth horizontal surface when they collide directly.... more
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05/15/20

Precalculus question?
Suppose T(t)=23sin(2π(t-7)/24)+66 is the temperature (in degrees Fahrenheit) at time t, where t is measured in hours after midnight on Sunday. You paint the exterior door to your house at 5 p.m. on... more
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05/15/20

Precalc question
a) If y=sin(x) on the domain -π/2 ≤ x ≤ π/2, what is the domain D and range R of y=2sin(3x-1)+3? How many solutions does the equation 4=2sin(3x-1)+3 have on the domain D and what are they?b) If... more
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