12/02/20

Algebra 1 Substitution
Use substitution to solve the system of equations. Type your answer in coordinate format: (x,y)-6x+8y=12-3x+4y=6
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12/02/20

Algebra 1 Substitution
Use substitution to solve the system of equations. Type your answer in coordinate format: (x,y)5x+4y=-34y=3x
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12/02/20

Can someone help me with this please
Find the vertex for the parabola
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12/01/20

Need help on this asap!!
Find the directrix for the parabola
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12/01/20

Write an equation of the line that passes through P(4, -3) that is parallel to y = 3x - 2. Write the equation in slope-intercept form.
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12/01/20

Logarithm question

Log2x-1(4.5x)=2find domain and solution my initial answers are x>1/2 for the domain and x=2 for the solution but it’s incorrect.
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12/01/20

I need help and the steps on how to solve this
Find the directrix for the parabola
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12/01/20

Investment: Rule of 70 The Rule of 70 says that the time necessary for an investment to double in value is approximately 70/r, where r is the annual interest rate entered as a percent.
Investment: Rule of 70 The Rule of 70 says that the time necessary for an investment to double in value is approximately 70/r, where r is the annual interest rate entered as a percent. Use the Rule... more
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12/01/20

The balance A (in dollars) in a savings account is given by A = 5000e0.06t
The balance A (in dollars) in a savings account is given by A = 5000e0.06t, where t is measured in years. Find the rate at which the balance is changing when t = 1 year, t = 10 years, and t = 50... more
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12/01/20

The ozone layer in a particular region is slowly depleting at a continuous exponential rate of -0.2%. a) If the current layer strength is 94%, what will it be in 20 years? b) When will it become 80%?
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12/01/20

precal question

Write the sum using sigma notation.12 + 22 + 32 +    + 132 13 k = 1
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12/01/20

precal question

Find the nth term of a sequence whose first several terms are given.4, 6, 4, 6, 4, 6, . . .an =  
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12/01/20

precalculus question

Find the nth term of a sequence whose first several terms are given. 5, 11/4,17/9,23/16,29/25 , . . .an = 
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12/01/20

How can you determine which graph is steepest by examining the following equations? y=3x, y=-4x-7, y=1/2x+4
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12/01/20

precal question
Write the sum without using sigma notation.  n (−1)j + 4 xj j = 1     +   +   + ··· +           a1         a2         a3         an
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12/01/20

The half-life of radium is 1600 years. If 2.5 kg is present now, find the formula for t days. How much will be present after a) 3200 years b) 16,000 years c) 800 years
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12/01/20

7) Tuition at a state university have increased from $14,000 to $18,500 in the last 5 years.

a) What has been the average annual growth rate in expenses? b) If this growth rate continues, what will the expenses be 5 years from now?
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12/01/20

A house bought for $175,000 in 2001 was sold for $235,000 in 2013. What was the annual rate of appreciation (increase) in the value of the house. Round to 3 decimals.
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12/01/20

Write a liner function f with the values f (0) = 3 and f (2) = 8
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12/01/20

Find a formula for the exponential function of the form A = f (t) = I B^t passing through the points (3.2, 52) and (5.2, 53)
Find a formula for the exponential function of the form A = f (t) = I B^t passing through the points (3.2, 52) and (5.2, 53)A=f(t) = _____ ⋅ _____^tround growth factor to nearest 0.00001and initial... more
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12/01/20

Trigonometry Question
A surveyor standing on a hill 19 feet high looks at a building across a river. The surveyor determines that the angle of depression to the base of the building is 20.23 degrees and the angle of... more
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12/01/20

Algebra question
A store owner wants to develop a new snack mix by mixing chocolate and trail mix. How many pounds of chocolate costing $11.30 per pound should be mixed with 17 pounds of trail mix costing $2.60 per... more
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12/01/20

Two small buckets and one large bucket can hold 8 cups of gasoline. One large bucket minus one small bucket constitutes 2 cups of gasoline. How many cups of gasoline can each bucket hold?
How many cups of gasoline can each bucket hold?
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12/01/20

The perimeter of a rectangular garden is 34 square feet. The length of the rectangle is 11 feet longer than the width. Let the length = x and the width = y. What are the dimensions of this garden?
I just need to find the dimensions.
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11/30/20

How many more quarters does she have?
Jennifer has three more dimes than nickels and three times as many quarters as nickels. If she has $7.50, how many quarters does she have?
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