43m

math question! please help!!
Suppose you bought 8 mangoes and four apples for $20 and 3 mangoes and 6 apples for $16.50. What is a system of equations that represents the situation? how much does each mango and each apple cost?
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48m

Math question! need help!
a shopper purchased 7 t shirts and 5 pairs of pants for $200. the next day, he purchased 5 t-shirts and one pair of pants for $112. what is a system of equations that represents the soulution? How... more
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1h

dy/dx, y=(5lnx)/(1+2^x)
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1h

Find a formula 𝑏𝑛 for the 𝑛- th term of the following sequence. Assume the series begins at 𝑛=1. 46,57,68,…
g
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1h

4lamps and 16 fixtures for each room. How many lamps for 6 rooms
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2h

The molecular formula for the amino acid lysine is C6H14N2O2.

The molecular formula for the amino acid lysine is C6H14N2O2. What would be the molecular formula for a polypeptide consisting of five lysine molecules?
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2h

Bill is in a class of 15 boys and 35 girls. 40% of the student ride the bus home. What percent do not take the bus home
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2h

a farmhouse shelters 11 animals. Some are sheep and some are ducks. Altogether there are 36 legs. How many of each animal are there?

that’s it
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2h

f(1) = 4, g(1) = 3, f '(3) = −5, f '(1) = −4, g '(1) = −3, g '(3) = 2, then find h '(1) if h(x) = f(x) g(x).
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2h

Help with precalculus equation.
Can someone please help me with solving this equation?The function f(x)=2x^2+16x+3 has a minimum of ______?
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2h

If the ratio of girls to boys is 3:4 and there are 34 more boys, how many girls?
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2h

Percents (math- word problem)
julian is painting chevron stripes oh his bedroom wall that is 10ft by 12 ft. He will cover 25% of the wall in yellow paint. What is the area of the wall that will be yellow?
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3h

Write and equation (any form) for the quadratic graphed below
When I answered the 2/3 tries I am able to do I got f(x)=-1(x-2)^2+3 and the second time i got y=-1x^2+4x-1 and how i got it was -1(x-2) (x-2)+3 i distributed so i got -1(x^2-2x-2x+4)+3 then i... more
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3h

Assume that there are 6 unfilled roles: 1 male and 5 female. There are 2 men and 8 women, including Ann, auditioning for a part in the play.
(1) How many different casts are there? (2) How many of these casts include Ann? 
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3h

one number is 5 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 422, find the numbers.
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4h

What is the multiplicative inverse of 2x?
I am trying to find the multiplicative inverse, the proof that shows that their product is 1, and using the inverse to write the corresponding expression below in standard form for 2x. Please help.
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4h

if you are traveling around a Basketball court with a parameter of 268 feet five times how many feet would you be traveling
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4h

Put the equation that is in general form:
Y=x^2+18x+77 into standard form: Y=(x-h)^2+kWhen I put my answers in for the first time I put y=(x+9)^2+4 how i did it was 18/2 which i got 9 and multiplied nine by itself and got 81 so i plugged... more
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4h

Finding resultant direction
An airplane is traveling 583 m/s at 68.1° degrees north of west when a wind starts to blow. The velocity of the wind is 110 m/s and it is blowing toward 19.0° east of north. What is the resultant... more
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5h

Chemistry Stoichiometry
2Al+6HBr=2AlBr3+3If 8 moles of HBr react, how many grams of Al reacted?
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5h

The LCM of 6^4 , 8^2 and k is 12^4 where k is a positive integer. Find the smallest value of k.

My answer is 1Please do explain with a solutionThank You!
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6h

Consider the function f(x)=7x2+3 Its tangent line at x=4 goes through the points (5,y1) and (−6,y2). What is y1 and y2?
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6h

For the function f(x)=(x+3)^2 , find the equation of the tangent line to the graph of f at x=0. If the equation of the tangent line is written as y=mx+b, what are m and b ?
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6h

math question on black board
A northbound train and a southbound train meet each other on parallel tracks heading in opposite directions. The northbound train travels 8 miles per hour faster than the southbound train. After... more
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7h

Find the 12th term of the geometric sequence 2, 10, 50,

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