6,938 Answered Questions for the topic mathematics
Mathematics
03/31/21
Alvin is 11 years older than Elga. The sum of their ages is 95. What is Elga's age?
Base equation: y = 2^x, vertical stretch by a factor of 3, shifted down 4 units
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Mathematics
03/31/21
Y varies directly with x. If y = -8 when x = 2, find y when x = -6.
Mathematics
03/31/21
Adam has a rectangular shed that has a width of 2 meters. The length of it is 5 times the width. What is the length?
Please be the right answer
Whats that answer..help!
This is the problem and I have no idea. Any help would be greatly appreciated.F(6) if f(x) = 2x -1
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Mathematics
03/30/21
math equation for tests
∠ and ∠B are complementary angles. If m∠A=(x+9)∘ and m∠B=(7x−15)∘, then find the measure of ∠B.
Mathematics
03/30/21
choose the sentence that translates this inequality x- 8<23
03/30/21
The length of a rectangular door is 24 feet less than three times its width. Solve for parameter.
You have a door. you know the length is 24 less than three times its width. You need to know the parameter to see if it will fit your doorframe. ___w___ | |3w-24...
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Some basic proof by cases problems
I'm stuck on these basic proof problems. Could you share your solutions with me?a)Prove 3|(2n^2+1) if and only if 3∤n for n∈Zb)Let a∈R. Prove that a^2≤1 if and only if -1≤a≤1
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Calculating time value of money (Future values/Present values)
Mrs PQ is saving for her daughter’s education in five (5) years’ time. Her estimation is that tuition and living costs will be $300 000. She decides to deposit $3 000 per month (at the beginning of...
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Mathematics
03/29/21
Please help me! I don't understand this Combining Like Terms! Its due in 9 minutes!!
Six friends went to a football game. The price of admission per person is $x. Four friends paid an extra $5 each for a program. Write and simplify an expression that represents the total cost.
Mathematics Fractions
03/29/21
Solve the inequality: -100 _____ -75
I really need help, I’m not that good at math, and thank you for those who help me with this question, may God bless you all
Need some help with the question
Turner and his wife are saving for a down payment on a house. They think that they need $75,000.A. If Turner and his wife each put $100 from each paycheck (i.e.$200 weekly) into an account that...
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Mathematics
03/29/21
thinking of two of the numbers, one number is 4 less than the other number, give one possible pair of numbers
thinking of two of the numbers, one number is 4 less than the other number, give one possible pair of numbers
03/29/21
Hi, I need help with math
What is the slope of the line tangent to the polar curve r=4θ^2 at the point where θ=pi/4a) pi/2b) pi^2/4c) 8+pi/8-pid) something else?
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03/28/21
Please help with math question
A curve is defined by parametric functions x(t) and y(t), where dx/dt = 3t^2 and dy/dt = t^7-2t^4. For what positive value of t is d^2y/dx^2 = 1?a) 1.202b) 1.149c) 1.079d) 1.525
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Integral logarithmic calculus math help.
Pls find ∫x(2+x)logx2dx I dont know how to do calculus of a logs base, here x is the base of the log.
Mathematics
03/28/21
If R is the midpoint of AT then
Mathematics
03/28/21
Word problem for 3rd grade
I am 35 years old woman with a kid. He is 8 years old, and he is 3rd grade. He was solving a word problem with no answer shown, and he and I both are confused. It was written like this, “Sam,...
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03/28/21
statistics question
According to a poll, 80% of California adults (406 out of 506 surveyed) feel that education is one of the top issues facing California. We wish to construct a 90% confidence interval for the true...
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Help Please A chemical company makes two brands of antifreeze.
A chemical company makes two brands of antifreeze. The first brand is 60% pure antifreeze, and the second brand is 85% pure antifreeze. In order to obtain 50 gallons of a mixture that contains 65%...
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03/27/21
I need help on these two trigonometry questions
Use the given information to find the values of the other five trig functionsTan theta = -8/15, pi < theta < 2piSin thetaCis thetaSec theta Csc theta Cot thetaCsc theta=4 , pi/2 < theta...
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03/26/21
Calculate the volume and standard deviation of the volume of the triangular prism
The length l = 120.236m +/-0.025m, the width b = 42.524m +/- 0.014m, the height = 55.632m +/- 0.018m.Calculate the volume and standard deviation of the triangular prism.
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