All Questions ⁺⁰230451 Questions

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608

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help

Express cos(5x) as a polynomial in cos(x).

Guest Nov 28, 2019

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731

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λ=μ

λ=μ
1/2λ=1-μ
1-λ=1/2μ
λ=μ=? read more ..

Guest Nov 28, 2019

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406

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Any challenging question??

If anyone have tough question (Doesn't involve calculus pls) , please post!

Guest Nov 28, 2019

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706

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Given are the functions f(x)=-0,5x 3 +4x 2 -6x and g(x)=2-√(4+2x)

Given are the functions f(x)=-0,5x3+4x2-6x and g(x)=2-√(4+2x)
a. For what values of x does the function g have results?
b. Give the coordinates of the vertex of the graph of f
c. Plot the graphs of f and g and give the solution to read more ..

Guest Nov 28, 2019

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873

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+1712

I'm Back with some Geo/Theory Questions!

Sorry I left if you noticed.

I was just reeling under homework and stress and stuff.
read more ..

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tommarvoloriddle Nov 28, 2019

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373

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help

A rhombus of side length s has the property that there is a point on its longer diagonal such that the distances from that point to the vertices are 1, 1, 1, and s. What is the value of s?

Guest Nov 28, 2019

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708

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+101

question concerning complex numbers

For complex number z, what is 2z + i = iz + 3?
(Please respond in form x + yi)

Thanks for your time! read more ..

chclt363 Nov 28, 2019

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971

1

help

In a rectangular coordinate system, the line $3y = x$ intersects the line $2x + 5y = 11$ at point $A$. What is the sum of the coordinates of point $A$?

Guest Nov 28, 2019

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434

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Calculating the weight of a mammal

The formula H = 300 * W-0,3 gives the average amount of heartbeats per minute of a mammal. The W stands for the weight in kilograms which is less than 10 ton.

a. With what window range would you get the graph to show up nicely read more ..

Guest Nov 28, 2019

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679

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How do you know if the graph of a fractional function has asymptotes?

How do you know if the graph of a fractional function has asymptotes?

Guest Nov 28, 2019

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751

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help

I drive a distance of 200km around the city and my car’s average speed is 25 km/h. How far do I then need to drive at an average speed of 100 km/h to raise my car’s average speed for the whole time to 40 km/h?

Guest Nov 28, 2019

Nov 27, 2019

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1000

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help

Mary has 62 square blue tiles and a number of square red tiles. All tiles are the same size. She makes a rectangle with red tiles inside and blue tiles on the perimeter. What is the largest number of red tiles she could have used?

CoolStuffYT ●●

Guest Nov 27, 2019

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1021

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+1253

Tough Parabola Question

Here's the question

A line intersects the parabola at points and . The line intersects the y-axis at the point . If then find .
I'm not sure how to read more ..

heureka ●●●●

CoolStuffYT Nov 27, 2019

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1028

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Can someone please help? I have been stuck on this question for 2 weeks.

2.Suppose a math book is thrown down from the top of the tallest tree in California, which is 378 feet tall with an initial velocity of -10 ft/s. The position function for free-falling objects is: s(t) = −16t2 + v0t + s0.

A. Determine read more ..

Guest Nov 27, 2019

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732

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help

Three people play a game with a total of 24 counters where the result is always that one person loses and two people win. The loser must then double the numberof counters that each of the other players has at that time. At the end of three games, each player read more ..

Guest Nov 27, 2019

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781

3

help

A number is formed by writing the numbers 1 to 30 in order as shown.

12345678910111213.....2930

Simeon removed 45 of these 51 digits leaving 6 in their original order to make the largest 6-digit number possible. What is the read more ..

Guest Nov 27, 2019

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584

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help

An oddie number is a 3-digit number with all three digits odd. Find the number of oddie numbers divisible by 3.

Guest Nov 27, 2019

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745

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help

The side lengths of a right-angled triangle are in geometric progression and the shortest side has length 2. What is the length of the hypotenuse?

Guest Nov 27, 2019

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564

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Let f be the function defined by

Let f be the function defined by

(sin^2x)/x^α , x > 0
f(x) = { γ , x = 0 read more ..

Guest Nov 27, 2019

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923

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Help quickk

Let x and y be positive real numbers such that 1/(x+2) + 1/(y+2) = 1/3. Find the minimum value of x + 2y.

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Guest Nov 27, 2019

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459

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using epsilon-delta definition how can i prove that

using epsilon-delta definition how can i prove that
lim x→0+ =1/√ x = +∞.

Guest Nov 27, 2019

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1099

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help

Pippa made a litre of drink from apple juice and water in the ratio of 1 : 2. She found the taste too strong so she made a litre again in the ratio 1 : 3, but found this too weak. So she thought if she combined these two mixtures, it should be about right. read more ..

Guest Nov 27, 2019

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