Kal Jay

Determine whether the statement is true or false. The lines with equation ax+by+c1=0 and bx-ay+c2=0, where a ≠ 0 and b≠ 0, are perpendicular to each other. ______________________________________________ True. The slopes of the lines are m1 and m2 respecti...

9 years ago

Consider the supply equation p=2x+10, where x is the quantity supplied in units of 1,000 and p is the unit price in dollars. Determine the number of units of the commodity the supplier will make available in the market at the given unit price. p=16

9 years ago

The freezing point is 0C and 32F, and the boiling point is 100C and 212F, respectively. Find F as a function of C and use this formula to determine the temperature in Fahrenheit corresponding to temperature of 15C. a. 60F b. 62F c. 59F d. 61F thank you

9 years ago

Determine whether the equation defines y as a linear function of x. If so, write it in the form y = mx + b. 6x-9y^2+8=0 a. y=6x+8 b. y=6/9x-8 c. y=6x-8 d. y=6/9x+8 e. y isn't a linear function on x. Thank you.

9 years ago

The quantity demanded for a certain brand of portable CD players is 200 units when the unit price is set at $90. The quantity demanded is 1,200 units when the unit price is $40. Find the demand equation. I'm leaning toward d, but I'm not sure. a. p = - 0....

9 years ago

An office building worth $1 million when completed in 2000 is being depreciated linearly over 80 years. What will be the book value of the building in 2048? (Assume the scrap value is $0.) a. The book value of the building in 2048 will be $200,000. b. The...

9 years ago

Find the point of intersection of the pair of straight lines. Round the answers to nearest three decimal places. y=7/3x-21 2x + 4y + 42 = 0 a. (3.706, -12.353) b. (21, -12.353) c. (3.706, 12.353) d. (2, 4) e. (7, 3) Thanks a bunch!

9 years ago

Find the break-even point for the firm whose cost function C and revenue function R are given. C(x)=0.3x+140; R(x)=0.5x a. P(680)=340 b. P(700)=350 c. P(690)=345 d. P(720)=360 e. P(710)=355 thank you

9 years ago

Mike’s Sporting Goods sells elliptical trainers under two payment plans: cash and installment. Under the installment plan, the customer pays $90/month over 5 years with interest changed on the balance at a rate of 19%/year compounded monthly. Find the cas...

8 years ago

Pierce Publishing sells encyclopedias under two payment plans: cash or installment. Under the installment plan, the customer pays $23/month over 2 yr with interest charged on the balance at a rate of 15%/year compounded monthly. Find the cash price for a...

8 years ago

Find the present value of an ordinary annuity of $1,400 payments each made semiannually over 8 years and earning interest at 12% per year compounded semi-annually. ​ $6,954.70 $9,763.58 $14,148.25 $3,365.99 Thanks for the help

8 years ago

Find the present value of an ordinary annuity of $500 payments each made quarterly over 6 years and earning interest at 8% per year compounded quarterly. ​ $9,456.96 $2,311.44 $24,968.07 $5,264.38 Thank you

8 years ago

Let U={1, 2, 3, 4, 5, 6, 7, 8, 9} and A={1}. Find the set Ac. a. {2, 3, 4, 5, 6, 7, 8, 9} b. {1, 2, 3, 4} c. {2, 4, 6, 8, 9} d. {2, 3, 4, 5, 6, 7, 8} Thank you!

8 years ago

{a, c} € {a, b, c} How do you get the answer? Thank you

8 years ago

How many international direct-dialing numbers are possible if each number consists of a four-digit area code (the first digit of which must be nonzero) and a five-digit telephone numbers (the first digit must be nonzero)? a. 567,000,000 b. 486,000,000 c....

8 years ago

In a survey of 380 households regarding the ownership of VCRs and DVD players, the following data was obtained: ​ 350 households own one or more VCRs. ​180 households own one or more VCRs and one or more DVD players. ​13 households do not own a VCR or a D...

8 years ago

Let A={2, 4, 6, 8} and B={2, 3, 5, 7, 9}. Compute n(A). ​ 17 14 5 8 4 1 Please help thank you

8 years ago

The 130 consumers were asked about their buying preferences concerning another product that is sold in the market under three labels. The results were 12 buy only those sold under label A. 24 buy only those sold under label B. 27 buy only those sold under...

8 years ago

Let A, B, and C be subsets of a universal set U and suppose n(U)=100, n(A)=30, n(B)=30, n(C)=32, n(A∩B)=9, n(A∩C)=10, n(B∩C)=14, and n(A∩B∩C)=5. ​ Compute n(Ac∩Bc∩Cc) c. 70 64 39 14 10 89 I dont understand this. Please help. Thank you.

8 years ago

Let A and B be subsets of a universal set U and suppose n(U)=210, n(A)=100, n(B)=60, and n(A∩B)=30. Compute n(Ac∩Bc). 80 150 100 90 180 200 Please help. Thank you

8 years ago

A 3-member executive committee is to be formed from a 11-member board of directors. In how many ways can it be formed? ​ 6 170 165 33 990 Please explain this to me. thank you

8 years ago

In a survey of 250 households regarding the ownership of desktop and laptop computers, the following information was obtained: ​ 130 households own only desktop computers. 30 households own only laptop computers. 50 households own neither desktop nor lapt...

8 years ago

Data released by the Department of Education regarding the rate (percentage) of ninth-grade students that don't graduate showed that out of 50 states, ​ 16 states had an increase in the dropout rate during the past 2 years. ​18 states had a dropout rate o...

8 years ago

Mike’s Sporting Goods sells elliptical trainers under two payment plans: cash and installment. Under the installment plan, the customer pays $90/month over 5 years with interest changed on the balance at a rate of 19%/year compounded monthly. Find the cas...

8 years ago

I don't what n(a) means.

8 years ago