2,563 Answered Questions for the topic Maths

09/27/19

how can I know all the probabilities

Five applicants are to be scheduled for job interviews at five given times. On an application form, each applicant was asked to mark two out of the five times. What is the probability that each of... more
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09/23/19

Vertical Translation
Find an equation for a sine function having an amplitude of 3, period of 4pi, horizontal shift of 2pi to the left, and a vertical shift of 1.
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09/23/19

Vertical Translations
Find a cosine equation having the following characteristics:amplitude= 2period= 8pihorizontal shift= 4pivertical shift= -2Thank you in advance!
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09/23/19

Vertical Translations!
Find an equation for a cosine function having an amplitude of 2, a period of 2pi, horizontal shift of pi/2 to the right, and a vertical shift of -5.
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09/23/19

anyone can help me with this problem with some explanation

We’ll call a set of numbers un-average if the average of any two numbers in the set is not in the set. So {1, 3, 6, 7, 10} is un-average, but {1, 3, 6, 7, 9} is not. What is the largest set of... more
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09/21/19

Vertical Translations!
A sine function has an amplitude of √2, period of 8pi, horizontal shift of pi, and a vertical shift of 1.What is the y-value of the positive function at x=4pi?
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09/21/19

Vertical Translations! Need Help Quickly. I have a test tomorrow and I still can't figure out how to do these.

Find a cosine equation having the following characteristics:amplitude= 5period= 2pi/3horizontal shift= -pi/6vertical shift= 2Please explain how you figured out how to solve the problem! Thank you... more
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Maths

09/19/19

Fractional Indices
Question 1:8^1/6×2^x=32^1/2Find xQuestion 2:5^-2×3 Square root 8 As a decimal
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Maths Algebra 1

09/17/19

A box weighs 90 grams write down in terms of b the weight of b boxes

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Maths Prealgebra

09/14/19

2000 people were asked whether they chose to use soap suds or green clean to do their washing up 75% chose green clean how many people chose greenclean
2000 people were asked whether they chose to use soap suds or green clean to do their washing up 75% chose green clean how many people chose greenclean
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09/10/19

Trigonometry- Prove that triangle ABF is similar to triangle DEF.
1)Prove that triangle ABF is similar to triangle DEF. Please ensure you follow proper proof form.2)Find the lengths of sides a and b in triangle ABF from question #1.
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09/06/19

Explain how Absolute Values work
To understand the absolute value definition you must believe that IxI = -x for negative x's. using x=-3 as an example, explain in words why multiplying x by -1 produces the same result as taking... more
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09/06/19

state a reasonable domain
A parking deck is to be built on 200' by 200' lot x=width of deck in feet
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Maths Trigonometry

09/05/19

can someone help me find the radius of the circle
What is the radius of the circle 2x2 + 2y2− 8x + 12y+ 15 = 0 ?I'd really appreciate the help I get the square root of 11/2 but the answer says it's wrong?
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08/28/19

Dan gets £x wages each week. After he pays his tax of £t and then his rent of £155. He then shares what’s left between himself and his wife. How much do they each get?

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Maths Trigonometry

08/27/19

prove that : root 3 cos theta + sin theta =1

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Maths

08/25/19

math problem help

Jalen is training to run the mini-marathon. Today during his run he went at a rate of 3.5 mph for 20 minutes to warm up, then sped up to 5.25 mph. The whole workout took an hour and a half. How far... more
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08/24/19

Bearings Question (finding distance travelled)
A ship travel on a bearing of 150oT for 25km before changing direction to 050oT and travelling a further 15km. How far south is the ship from it's starting position. (State answer correct to 2... more
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Maths Algebra 1

08/21/19

if a bridge is 45 feet in the center that hovers water and on the west and east banks of the bridge are 1/5 how long is the bridge
if a bridge is 45 feet in the center that hovers water and on the west and east banks of the bridge are 1/5 how long is the bridge
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08/20/19

present value interest factor annuity formula

1030 = 40 [1-(1+r)-40/r] + 1000 [1-(1+r)-40/r] solve for r
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Maths

08/18/19

Modulus problem
We know that |x|=always a positive value but when x<0 then why do we consider |x|=-x
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08/16/19

Question about adjusting exam scores on a kind of proportional scale
Let's imagine we have ten student's scores as %87769147687479948859The minimum passing score is set at 70%. The school decides to throw out the 47% grade as a hard fail.The next lowest grade, 59 is... more
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Maths Algebra 2

08/14/19

Partial Fraction of 1/(s^2(s+2))
1/S2(S+2) Solve as soon as possible .........................
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Maths Algebra 2

08/12/19

The sum of two numbers is 15 and the difference is 4. Let the two numbers be x and y. Write down a pair of simultaneous equations involving x and y. Solve the equations/
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Maths Prealgebra

08/10/19

There are 21 coins only two tyoes which are:(quarter and nickel) they add up to 2.45 how many of each coins are there
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