Mark M.

The formula for the total cost,C, of 15 plugs and sockets is: C = 15(P + S) Where P is the ocst of a plug and S is the cost of a socket. Find the total cost of 15 plugs and sockets if plugs cost... more

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Algebra 1

01/09/17

10(x/2+6)=8

How to solve

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Proportion Rate Scale Drawings And Models

01/09/17

Scales and Diagram

When making a photocopy of a 10 cm by 15 cm photograph, Elizabeth enlarged the picture by a scale factor of 150%. By what percent was the area of the photograph enlarged?

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Trignometry

01/09/17

Determine the acute angle at which y=2x-1 and y=0.5x+2 intersect.

Determine the acute angle at which y=2x-1 and y=0.5x+2 intersect. Can you please include the process of how to solve the problem? Thank you.

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Precalculus College Algebra

01/09/17

Form a polynomial whose zeros and degree are given.

Zeros: -4, multiplicity 1; 3 multiplicity 2; degree 3Type a polynomial with integer coefficients and a leading coefficient of 1

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Trigonometry

01/09/17

Find an expression for the area of the regular pentagon. Determine the area of a regular n-gon. (Image)

a) Find an expression for the area of the regular pentagon. b) Determine the area of a regular n-gon. https://i.imgsafe.org/43b894a5b0.png (The web link features a diagram to assist with... more

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Trignometry

01/09/17

In △ABC, BD is perpendicular to AC. a) Show that the two smaller triangles inside △ABC are similar to each other. b) If BD = x and AD = y...

In △ABC, BD is perpendicular to AC. a) Show that the two smaller triangles inside △ABC are similar to each other. b) If BD = x and AD = y, find the ratios of the areas of the two smaller... more

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Trig

01/09/17

(2x^2+3x)^2 -4(2x^2+3x)-5

rewrite the expression and find it as four linear factors

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Math Help

01/09/17

If you average 30 mi/h,a drive between two cities will take two hours longer than if you average 35 mi/h.how far apart are the two cities

Algebra charts

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Interest Rates

01/09/17

Brenda deposited $300 in the bank.If the bank pays her simple interest at the rate of 4%, how much interest will her account earn at the end of 9 months?

what will be brenda's new total balance

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Probability

01/09/17

Suppose you have 18 black socks and 18 green socks in the dryer. Without looking, how many socks would you need to pull out of the dryer to be sure you get a

continuation of question a black pair of socks? without looking how many socks would you need to pull out of the dryer to be sure you get a matching pair (of any color)?

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Math Word Problem

01/09/17

describe what an array that shows 70 x 35 would look like. how many items would there be how many rows would there be.

it is about arrays. you multiply.

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Linear Systems

01/09/17

Solving a system of linear equations by substitution

x=2y+7 3x-2y=3

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Geometry

01/09/17

To the Nearest tenth of the ramp,what is the horizontal length of the ramp?

A Ramp is 12 feet long and rises 2 feet from the ground A.10.0 feet B.10.6 feet C.11.8 feet D.11.9 feet

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Percentage Profit

01/09/17

Paying $21 and making $63 is how much % profit

Need to find percentage profit on a $21 purchase and making $63

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Stats

01/08/17

A typical unladen swallow has an air-speed velocity of with a mean of 22 m/s and a standard deviation of 1.5 m/s.

A typical unladen swallow has an air-speed velocity of with a mean of 22 m/s and a standard deviation of 1.5 m/s. What is the probability that a randomly chosen unladen swallow will have an... more

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Trigonometry Trig

01/08/17