W 3. When solving the system of equations given below using substitution, which variable is the easiest to isolate? 3z +5y 12 z+7y = 4 %3D

Q: The count in a bacteria culture was 400 after 10 minutes and 1100 after 30 minutes. Assuming the…

A: Given that, The count in a bacteria culture was 400 after 10 minutes and 1100 after 30 minutes.

Q: Suppose ABC is a right triangle with sides​ a, b, and c and right angle at C. Find the unknown side…

A:

Q: Graph the system of linear equations - x +5y=8 2x - 10y =7

A: The given system of the equation is; -x+5y=8    ....12x-10y=7    ....2   Now write equation (1) and…

Q: ( ) -3 8. Determine the inverse of the matrix 1 -2

A: Topic = Matrix

Q: Identify the size of the matrix. a. A4X7 * B7×12 1. b. A3 2x5 + B32x5 C. A3x2 * B3x2 d. A7X9 + Bºx7…

A: Any matrix size is determined by counting its column and rows

Q: The time it takes to drive to soccer practice varies inversely as your driving speed. Averaging 30…

A: The time it takes you to get to soccer practice varies inversely as your driving speed: t = k/s…

Q: 1

A: The number left arrow is pointing is 0.4=0.4×101×10=410 in decimal fraction. The number right arrow…

Q: Graph the system of linear inequalities. X20 x+y<11 Click this Coordinate Plane to draw the graph…

A: We can explain the answer using the graph in the following steps.

Q: Quiz: Quiz 9: Simple and Compound Interest Qu roman borrowed $3500 from a bank for 6 months. A…

A: Topic:- algebra

Q: The count in a bacteria culture was 500 after 20 minutes and 1500 after 30 minutes. Assuming the…

A:

Q: Examples 1-3 Expand each binomial. 14. (с — d)? 15. (x + 6)6 16. (у — 5)7 17. (2a + 4b)4 18. (За —…

A:

Q: You currently have $4,700 (Present Value) in an account that has an interest rate of 4% per year…

A: Given: P=$4700 r=4%=0.04 A=$11750

Q: Tony opened a savings account whose value after t years after the initial deposit is given by the…

A:

Q: Suppose you want to accumulate $100,000 for a down payment on a house in 6 years. You make a single…

A: Solution is given below:

Q: Estimating Products to the Nearest Tens Estimate the product by rounding each number to the nearest…

A:

Q: A fossilized leaf contains 25% of its normal amount of carbon 14. How old is the fossil (to the…

A:

Q: you invested ​$25,000in two accounts paying 7% and 9% annual​ interest, respectively. If the total…

A: We have to use formula for simple interest to solve the problem

Q: Two trains leave towns 835 miles apart at the same time and travel toward each other. One train…

A:

Q: Fill in the blank with an appropriate inequality sign. (a) If x < 4, then x – 3? v1. (b) If x < 4,…

A: Solve the given

Q: D) MA912.A 20. Write an equation for the line graphed. A) y = 2 B) y = 2x C) y = -2x D) y = 2x + 1

A:

Q: -2 8. B 3= A%3D 1

A: We have to find the matrix operation

Q: Write the first four terms of the sequence whose general term is given. Separate the terms with a…

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Q: 22+44

A:

Q: 19 log9 x2 6.

A:

Q: A wooden artifact from an ancient tomb contains 35 percent of the carbon-14 that is present in…

A: We have to find out time

Q: (w- 2)² =O

A: Topic:- algebra

Q: W 1. Solve the following system of equations: Va +y= 6 --y= -6 O (0, -6) and (9,3) O (0,6) and (9.…

A:

Q: Fill in the blank with the appropriate direction (left, right, up, or down). (a) The graph of y =…

A:

Q: Verify that A, is an eigenvalue of A and that x, is a corresponding eigenvector. 2 = 6, x, = (1, 0,…

A:

Q: e 87e in the form &876" and interpret the value of b. Round 6 to four decima e0.66z 876 implies b =…

A: Topic:- algebra

Q: A student deposits $1000 in a savings account that pays interest at the rate of 6% per year,…

A: here is the solution:

Q: 1. Identify the size of the matrix. a. A4X7 * B7×12 b. А32х5 + в32X5 С. A3x2 * B3x2 d. A7X9 + BºX7…

A:

Q: 13 Use the properties of logarithms to rewrite the expression and simplify if possible. 81y In (x+6)

A:

Q: Find P(15.6<X < 54.5) if X is normally distributed with mean 45 and standard deviation 10

A:

Q: Find an expression for the function f(x) whose graph is a line passing through the points (4, 9) and…

A: Given query is to find the equation of the function.

Q: Determine the equation of the cubic function that has roots at -3, -5, and 3 and passes through the…

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Q: Determine if the graph of the quadratic equation opens up or down and is wider or narrower than the…

A:

Q: in how many ways can 7 volunteers be assigned to 7 booths for charity bazaar?  a. 10080 ways b.…

A: We have to find the no of ways

Q: Summation Formulas: Ela-p*-) = Irl<1 1. Geometric Series ; Ir|< 1 k=1 n Sn =5 (a, + an) 2.…

A:

Q: PROB.NO. 5 FIND VALUES (IF ANY) OF THE UNKNOWNS X AND Y WHICH SATIFY THE FOLLOWING MATRIC EQUATION:…

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Q: Estelle invested $2, 000 in an investment account at the start of the year 2010, and by 2014 the…

A: Given: Estelle invested $2000 in an investment account at the start of the year 2010 and by 2014 the…

Q: bacteria culture starts with 10001000 bacteria and grows at a rate proportional to its size. After…

A: The solution is given below. Using. Concepts of compounding we will do it.

Q: VERIFY THAT ( X + 3 )( X + 21 ) = (X + 21 )( X + 3 ) = x² - 5X + 61 FOR 1 2 1 X = 3 3 1 4

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Q: Find and interpret the slope of the line containing the given points. (4,-1) and (1,3) Select the…

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Q: Graph the system of linear equations. x +5y= – 12 x- 5y= 8

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Q: Steve opened a savings account with an initial deposit of $3, 000. The account paid 6% annual…

A: Let amount $P be invested for t years with rate of interest r compounded n times in a year. Then…

Q: 2. Which conic section is represented by the équation 2x2 + 4x- y +9 = 0? O Hyperbola Ellipse O…

A:

Q: Prorate the following and find the monthly cash flow. Assume 4 weeks in a month. Hint: calculate all…

A: Cash Flow = Cash in - Cashout  Given monthly income = $3300  Cashout = Total Monthly expenditure

Q: Which of the following are equivalent to log, (14)? Choose all that apply. You will receive full…

A:

Q: Ayden has a square picture frame with an area of 256 square inches. What are the dimensions of the…

A: Given  Area of square = 256 square inches .