Solve: Bill can grade a set of test papers in 80 minutes. Karl can grade a set of the same number of similar test papers in 140 minutes. How long will it take Bill and Karl to grade a set of these test papers if they work together? O Approx. 40.5 minutes O Approx. 34.8 minutes O Approx. 19.6 minutes O Approx. 48.0 minutes O Approx. 50.9 minutes

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Q: What is the square root of -5?

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A: Topic = Algebra The value of the investment after 30 years is $5700.

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A: From the given graphs, we find that it represent y as a function of x.

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A: Solution given below

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A: Given query is to simplify the expression.

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A: We will find the rank of the matrix

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A: We can solve this as follows:

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Q: Which of the following sets is linearly independent in P2 ? {1+x + x?, x – x²,x + x²} the above set

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Q: Note: Enter your answer and show all the steps that you use to solve this problem in the space…

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Q: What is the square root of -5?

A: Topic:- algebra

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A: This question can be solved using the concept of solving equations having rational function.

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A: vector space.

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Q: 2 -3 1 2 and B: -2 0 the matrix 3(A +2B) is equal 2 For matrices A =| 0 1 7 -2

A: The given matrices are;  A= 2 -3      0 2       7 -2 B=1 -2 0      5 1 2.

Q: What is the domain of f(x) = (? A {x\x€R} {x|x€R, x= 0} B © {x|x€R, xS0} D D {x\x€R, x>0}

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Q: f(x)=4x2+2 and g(x)=3x+4, find (f∘g)(1) and (g∘f)(1). (f∘g)(1)=      (g∘f)(1)=

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Q: 6) 2. 10 Зх - 6 3

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Q: 125 ,n3D410, p 0.25, and q 1-p. Evaluate the formula z= when p pq 410 (Round to two decimal places…

A: z=p⏞-ppqn

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A: Let's find.

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A: Given query is to find rate of change.

Q: The formula is x=ab^2/c^3 with a representing the constant variation where x=12 when b=6 and c=3.…

A: x=ab2c3Given x=12,b=6,c=3.Therefore12=a.623312=a.362712=a.4312×34=a3×3=a9=aa=9.

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Q: need the answer quickly

A: Given