Solve the following system of equations by elimination: 70x + 42y=42 140x - 60y = 180

Q: Suppose that $17,421 is invested at an interest rate of 6.3% per year, compounded continuously. a)…

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Q: 11. Find all values of t for which -2 (а) 0; 3 t- 3

A: topic - determinants

Q: Consider the linear transformation T : M22 → P2 given by — (а +b+ 3с + d) + (а+b+3с+d)x + (a +b+ Зс…

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Q: How much money do you need to deposit in a bank today if you are planning to have $5000 in four…

A: Here we have to find hoe much money do you need to deposit in a bank today if you are planning to…

Q: Q1 The following data is provided for the velocity of an object as a function of time: t.5 5 10 15…

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Q: Evaluate 3c when c = = 5: gebraic Expression Numerical Expression Answe

A: Put c=5

Q: Q2) Solve the D.E x²dy + (3xy- 1)dx 0

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Q: Solve: x* + 4x2 - 45

A: Here we have to solve the given equation.

Q: A Leslie matrix is given below with the usual age groups, 0 year old (0-1), 1 year olds (1-2), etc.…

A: Note: As you asked, solved d for you.

Q: For each, tell if you would multiply or divide and choose the number you'd use. a. A population…

A: This question can be solved using the concept of percentage.

Q: P7500 is deposited in a savings account at 6.5% rate of interest compounded quarterly for 25 years.…

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Q: Find the determinant of matrix a i. 2 2 2 by using the properties of determinant. b+c a+c a+b

A: Let's find.

Q: Let f(x) = x2 + 7x and g(x) = 2- x. Find (x) and (3).

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Q: X=(1/2)^y

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Q: Revenue Function Let a be the number of books sold to distributors. The revenue function is R(x) =…

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Q: sin A sin B sin C 15. Use a graphing or scientific calculator and the law of sines, to find the…

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Q: 1. 11101012 + 11110102 2. 25478 + 4212s 3. ACE16 + CA916

A: As per rule of bartleby we can solve only one question at a time and we can solve only three subpart…

Q: Find the slope of the line graphed below. 4- 3 Undefined -5 -4 -3 -2 2. 3. 4. -2-

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Q: Use the properties of logarithms to expand the following expression as much as possible. Simplify…

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Q: Suppose you were given $700 from your uncle. You deposited that money in a bank and added $40 per…

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Q: b. Ine 2x %3D c. The equations log, 32 5 and2° 32 are equivalent. d. The equations 4 64 and log,64 4…

A: We are asked to find which are all true

Q: Suppose that a polynomial equation has the following six roots: -4, -2, 1 + iv2, 1 - iv2, 2, and 4.…

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Q: 2

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Q: To win at LOTTO in one state, one must correctly select 6 numbers from a collection of 46 numbers (1…

A: topic - permutation and combinations

Q: (목+)" Q41. Term independent of x in expansion of is? e 6x3

A: here is the solution

Q: Use the graph off at the right to complete each of the parts (a) through (h). a. Find the domain of…

A: topic - functions Note : As per bartleby guidelines, we are supposed to answer only first three sub…

Q: Suppose matrix A and B are: За 3Ь ; B=|-d -e -f [4g 4h [a b c] 3c A = |d e f Lg h i] 4i If the value…

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Q: Which angles are supplementary to each other? Select all that apply. JAI and ZDHK and ZKHL and ZGDH…

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Q: A chemical manufacturer sells sulfuric acid in bulk at a price of $100 per unit. If the daily total…

A: C(x)=100000+50x+0.0025x2Selling proce per unit=$100If production is 7000 unitsTotal selling price=…

Q: A certain tranquilizer decays exponentially in the bloodstream and has a half-life of 45 hours. How…

A: LetA0=100h=45 hrsA(t)=93We know thatA(t)=A0(12)th 93=10012t45Taking ln on both…

Q: Find two consecutive positives even interfere such the sum of their squares is 52?

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Q: 1

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Q: Find the inverse of the given matrix, if it exists. Use the algorithm for finding A1 by row reducing…

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Q: The function y 0.3e3 represents exponential growth. 035x a. %3D 12e b. 4e 3e2 c. e.-4e =-4e? d. The…

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Q: Following the birth of a child, a parent wants to make an initial investment Po that will grow to…

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Q: Clayton started with $3 and spent it on a bag of candy with 40 pieces. He sells each piece of candy…

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Q: How many code symbols can be formed using 3 out of 7 letters of A, B, C, D, E, F, G if the letters:…

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Q: Given the following system of linear equations: x1 - 2x2 + x3 = 3 x2 + x3 = 1 -x1 + 2x2 - 3 = -3 2x2…

A: Here we have to use the Gauss Jordan elimination method.

Q: how do you solve "the student council is planning a trip to the zoo . it costs $12.50 per studnet…

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Q: FACTOR 시

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Q: Orthogonally diagonalize the matrix, giving an orthogonal matrix P and a diagonal matrix D. 12 2…

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Q: ABC pharmacy buys covid 19 self test kid  for $250 per box which containts 50 units. find the…

A: Given that, the markup rate=40%=40100=0.4 The price of sanitizer $250 per box, The box coining 50…

Q: The maturity value of a 3-month loan of $4000 is $4085. What is the simple interest rate (%)? (1…

A: We know that          Simple Interest =   ( P × r × t ) ÷ 100       where    P = Principal value…

Q: Q23: Polar conversion of (v3, -V7) is? (a) ( V10, 2n + tan¬1 3 () (), (b) (V10, 2n – tan-1 3 (c) (…

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Q: if you drive 126 miles and use 9 gallons of gas, what is your rate?

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Q: 6. R 75 64 MZRST = %3D 139* MZRUT = %3D

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Q: A system of linear equations of the order 2 x 2 has the following form. Find the wrong solution for…

A: Option 1 is wrong solution.

Q: Decibels Sound levels in decibels (dB) can be calculated by D (r) = 10 log (10®x), where x is the…

A: Sound level in decibels,Dx=10 log1016x

Q: Equilibrium Point Yaster Cookware is planning to introduce a new line of cast-iron pans. A marketing…

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Q: You are making your schedule for next semester. You have 10 choices for your math class, 13 choices…

A: No ofchoices for Maths are 10English are 13Communications are 6Elective are 11A schedule consists of…