01/21/19

Algebraic equation using two operations
The product of two numbers is -72. Their sum is 1. Find the smaller number.
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01/21/19

A bag contains yellow marbles and green marbles, 55 in total. The number of yellow marbles is five less than three times the number of green marbles. How many yellow marbles are there?
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01/21/19

How much will it cost to buy enough lemons to make four 9-inch lemon pies, each requiring half a cup of lemon juice?
The store is selling lemons at $0.37 each. Each lemon yields about 2 tablespoons of juice. How much will it cost to buy enough lemons to make four 9-inch lemon pies, each requiring half a cup of... more
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01/21/19

The coordinates (-8, 13) would be plotted in quadrant
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01/21/19

Point Slope Form Equation

Parallel to y = 7-4x and passing through (2,-5)
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01/21/19

Conversions math
 While still in the hospital, the doctor writes an order for an antibiotic at 25 mg/lbs/day. You are nervous now because the nurse was wrong before. Assuming that you weigh 123 lbs, determine how... more
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01/21/19

Find the missing angle

The sides of a rectangle are 25 cm and 8 cm. What is the measure, to the nearest degree, of the angle formed by the short side and a diagonal of the rectangle.
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01/21/19

System of equations question
Several books are on sale at a bookstore. Some of these books cost $3 and others cost $5. One day last week, 80 of these books were sold. The total amount of the sales was $300. How many of each... more
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01/21/19

What does BxC equal if B={L,M,N} and C={M}?
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01/21/19

One half of a certain number added to one third of the next consecutive number is 22. Find the numbers.
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01/21/19

Separate 144 into two parts such that one part shall be 3/5 the other part. Find the numbers.
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01/21/19

Teacher convention
A group of 50 teachers and school administrators attend a convention. If any two persons had been picked at random at least one of the two would be a teacher. From this information, what percentage... more
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01/21/19

Please help with this math problem!
A phone line runs east along a field of 1.8 miles and then north along the edge of the same field for 2.5 miles. If the phone line cost 3500 per mile to install, how much could have been saved if... more
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01/21/19

Trig identities

Find sin y if sec y= square root of 30 divided by 5 and tan y<0
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01/20/19

How do you find the average rate of change of f(x)=-3x to the second +7x+18
How do you find the average rate of change of f(x)=-3x2 + 7x + 18, for the interval -2≤x≤1
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01/20/19

What is the area of triangle bounded by the x-axis, the y-axis, and the line y= -5x+20?
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01/20/19

A truck is loaded with 80 cartons of books. A carton has 35 copies each of 12 different books. How many books are there on the truck?
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01/20/19

What is negative 9 and the sum of a number and 4 as an equation?
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01/20/19

Y is directly proportional to x squared and y = a for a particular value of x. Find an expression for y in terms of a, when this value of x is doubled.
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01/19/19

Two column proof
Given: ∆SVX ≈ ∆ UTX and line SV || line TUProof: VUTS is a parallelogramStatemente | Reason 1. ∆SVX ≈ ∆UTX | 5. Given 2. ____________ | 6. Given 3. ____________ | 7.... more
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01/19/19

The sum of two numbers is 2,490. Find the numbers, if 8.5% of the first one is equal to 6.5% of the other.
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01/19/19

f(x) = 1/(x^3-1) 1) lim x--> 1^- f(x) , 2) lim x--> 1^+ f(x) =
f(x) = 1/(x^3-1) 1) lim x--> 1^- f(x) = 2) lim x--> 1^+ f(x) = Would someone please show the steps for these two problems?
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01/19/19

f(x) = 1/(x^3-1) 1) lim x--> 1^- f(x) = 2) lim x--> 1^+ f(x) =
f(x) = 1/((x3-1) 1) lim x--> 1- f(x) = 2) lim x--> 1+ f(x) =I would like to understand the steps on how to answer these questions.
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01/19/19

limx-->pi/2^+ (-8/cosx)
limx-->pi/2 (-8/cosx)evaluate the right hand limitI keep getting -8/0+ (since cos(pi/2) is approaching zero from the right hand side) and keep getting negative infinity as my answer, but correct... more
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01/19/19

Notation for the Superimposition of two or more equations
Is there a mathematical notation that describes the superimposition of two or three equations?For example, y=x superimposed on y-x^2, could you write that as y=x, x^2?Thank you.
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