03/25/20

Complete the Square (Part 1 of Method)
What is the intermediate step in the form (x+a)^2=b as a result of completing the square for the following equation?-3x^2=18x+102
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03/25/20

2sin(x+y)cos(x−y)
Use the product-to-sum identities to rewrite the following expression as a sum or difference.2sin(x+y)cos(x−y)= ??
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03/24/20

i need help w deltamath
Sarah invested $3,800 in an account paying an interest rate of 3.6% compounded daily. Assuming no deposits or withdrawals are made, how much money, to the nearest hundred dollars, would be in the... more
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03/24/20

Simplifying math question

I'm trying to find the simplest form but struggling. Which is the simplest form. I’m confused. 4x The whole fraction plus 5 3or 4x+15 3
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03/24/20

What th average rate of change for f(x)=2x-1
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03/24/20

solve on [0,2pi)

sin(x+pi/6)-sin(x-pi/6)=1
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03/24/20

In ΔDEF, d = 5.2 inches, e = 6.8 inches and ∠F=166°. Find the length of f, to the nearest 10th of an inch.
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03/24/20

Determine whether the geometric series ∑∞n=1 (4^(n−1))/9^n is convergent or divergent. If it is convergent, find its sum. Give reasons and show all your work.
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03/23/20

Trigonometry question
Find the angle θ to the nearest minute without using a calculator. Show steps taken. tan θ = 1.063
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03/23/20

Given f(x)=AcosB(x-C)+D, changing which parameter, A, B, C, or D, will affect the phase shift of the function? How will this affect the position of the graph?
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03/23/20

Among all rectangles that have a perimeter of 144, what are the dimensions of the one whose area is largest?
Write the answers as fractions reduced to their lowest terms.
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03/23/20

what is my equation?
A school is organizing a cookout where hotdogs will be served. The hotdogs come in small packs and large packs. Each small pack has 8 hotdogs and each large pack has 18 hotdogs. The school bought... more
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03/23/20

A triangular plot of land is measured out to be exactly 1 acre, or 4,840 square yards. Two sides of the property each measure 150 yards. What is the length of the third side of the property?
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03/23/20

HelpHelpHelpHelpHelpHelpHelp
 A cyclist left the city for a station, which was 16 km away. On the way back he reduced his speed by 4 km/hour.... more
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03/23/20

let v= -5i -6j. find vector -8v
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03/23/20

Centrzl angle of the arc
A circle has a circumference of 18, It has an arc length of 6Whats the central angle of the arc in degrees?
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03/23/20

6700 dollars is placed in an account with an annual interest rate of 8%. How much will be in the account after 24 years, to the nearest cent?
6700 dollars is placed in an account with an annual interest rate of 8%. How much will be in the account after 24 years, to the nearest cent?
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03/23/20

Simplify the following expression: 3sin2θ+4cos2θ
Simplify the following expression: 3sin2θ+4cos2θ71+cos2θcos2θ3−sin2θ13+cos2θ
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03/23/20

Determine all the values of θ in the following equation if 0≤θ<2π. −12sin2θ+5=−4
Determine all the values of θ in the following equation if 0≤θ<2π.−12sin2θ+5=−4
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03/22/20

How much is 2.5 pounds of apples at $1.25 per pound
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03/22/20

The propeller of a 90-horsepower outboard motor rotates at exactly 2000revolutions per min. Find the angular speed of the propeller in radians per sec.
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03/21/20

Please Help !!!!!!! This is a PreCalculus question
Find C and a so that f(x)=Cax models the situation described. State what the variable x represents in your formula.There are initially 2500 bacteria, and this sample doubles in size every hour.C=a=
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03/21/20

Interesting divisibility problem
Several different numbers are written on the board. Exactly 2 are divisible by 2, and exactly 33 are divisible by 33. Let M be the biggest of them. What is the smallest possible value for M?
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03/21/20

F1 is a force of 5 N pulling an object south and F2 is a force of 3 N pulling an object in the compass direction of N 40 degrees E. Find the magnitude of the resultant vector.
Extra note: I'm having some trouble when it comes to modeling what's going on in the question. Will F2 approach F1 as F1 heads south and F2 heads N 40 E (so each object starts at a different... more
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03/21/20

I’ve gotten it wrong many times
After beginning a new position with 9 established accounts, a salesman made it his objective to add 3 new accounts every month. His goal was to reach 51 accounts. At this rate, how many months... more
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