All Questions ⁺⁰237641 Questions

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845

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help!!!

Find all values of k so that the graphs of x^2+y^2=4+12x+6y and x^2+y^2=k+4x+12y intersect. Enter your answer using interval notation.

i would really appreciate the help! I only get two attempts and i got it wrong the first time....help read more ..

Guest Nov 27, 2019

0

905

2

help

Let a, b, c be the roots of x^3 - 17x - 19. Find a^3 + b^3 + c^3.

Guest Nov 27, 2019

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1393

2

Help please!

A can is in the shape of a right circular cylinder. The circumference of the base of the can is 12 inches, and the height of the can is 5 inches. A spiral strip is painted on the can in such a way that it winds around the can exactly once as it reaches read more ..

Guest Nov 27, 2019

0

712

1

What is tan (-3645)?

What is tan (-3645)?

Guest Nov 27, 2019

0

850

3

help

Each side of a regular dodecagon A1 A2 A3 ... A12 has length 2. What is the area of the pentagon A1 A2 A3 A4 A5?

Guest Nov 27, 2019

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756

1

Physics question about mass and speed.

A planet revolves with a speed of 2,97 * 104m s-1 in orbit around a star. The radius of the orbit is equal to 1,96 * 1011m.
a. What would be the speed in km h-1
b. Calculate how many days it would take for the planet to complete read more ..

Guest Nov 27, 2019

+1

788

5

In a lake the amount of fish can be calculated by using the formula F = 1500 - 900/1+0,2t.

In a lake the amount of fish can be calculated by using the formula F = 1500 - 900/1+0,2t.
F is the amount of fish and t is the time in weeks with t = 0 being january 1st.

a. Calculate how much the amount of read more ..

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Guest Nov 27, 2019

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841

2

Could anyone check if these are correct? Thank you!

0,1x + 0,01 (x - 10) = 110,9-x
1x + 1x - 10 = 1109 - 10x
2x - 10 = 1109 - 10x
2x = 1119 - 10x read more ..

Guest Nov 27, 2019

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817

4

Calculating the diameter of a cylinder.

I have a cylinder made from metal. It has a mass of 345 grams, a height of 6,52cm and a volume of 1,18 * 10-4 m3. What is the diameter?

Guest Nov 27, 2019

0

751

1

help

How many distinct triangles with positive integer sides have perimeter equal to 12? (Triangles are distinct if they are not congruent.)

Guest Nov 27, 2019

0

958

1

Math

All Znors are Zmuds. Half of the Zorfs are Zmuds. There are 24 Zorfs. No Zlogs are Znors. There are 16 Zorfs that are not Zlogs. All Zlogs are Zmuds. Half of the Zlogs are Zorfs. No Znorfs. There are 9 Zmuds that are not Znors or Zorfs or Zlogs. There are read more ..

Guest Nov 27, 2019

0

865

3

+101

please help

The complex numbers a and b satisfy a*[conjugate b] = -1+5i
find [conjugate a]*b

chclt363 Nov 27, 2019

+1

2523

5

Help please! Thank you!

1. Medians $\overline{AX}$ and $\overline{BY}$ of $\triangle ABC$ intersect perpendicularly at point $O$. We know the lengths $AX = 12$ and $BC = 4\sqrt {13}$. Find the length of the third median, $CZ$. (Is not: 200 or 4sqrt22)
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Guest Nov 27, 2019

0

791

1

I am more concerned with the steps

I am more concerned with the steps
thankyou

1. Given and , evaluate the expressions. read more ..

Guest Nov 27, 2019

+1

817

0

I am more concerned with the steps

i am more concerned with the steps
thank you

1. Manu determines the roots of a polynomial equation by applying the theorems he knows. He organizes the results of these theorems. read more ..

Guest Nov 27, 2019

0

859

2

math

divide and round the quotient to the nearest hundredth: 351.9/5.7

Guest Nov 27, 2019

0

467

0

help

In a race, each of four greyhounds runs at its own constant speed. They all start at the same point on a circular track and at 30 seconds into the race, while all are still on their first lap, they have spread out so they are at four corners of a square. read more ..

Guest Nov 27, 2019

0

1244

3

+312

SIMILAR TRIANGLES

In rectangle ABCD points P and Q lie on AB and DC respectively. Angle PMQ is a right angle, M is the midpoint of BC and PB = 4/3BC. What is the ratio PM:MQ? Express your answer as a common fraction.

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mathleteig Nov 27, 2019

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685

2

help

There is a point X inside a square PQRS such that PX = 1, QX = 2 and triangles PXQ and PXS are congruent. What is the area, in square units, of the square?

Guest Nov 27, 2019

Nov 26, 2019

0

1112

5

help review question!!!!

Let a,b,c be positive real numbers. Determine the largest total number of real roots that the following three polynomials may have among them: ax^2+bx+c, bx^2+cx+a, cx^2+ax+b

Please help!!! read more ..

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Guest Nov 26, 2019

0

759

3

+4

help pls multivariable calculus

Hello friends! I'm doing my homework but I'm having problems with two exercises :c help

1. solve
read more ..

darkes65 Nov 26, 2019

0

810

1

Mario needs help!

Mario needs help!
Mario collected 23497 coins on his last adventure.
If 50 coins equal a 1-Up, how many 1-Ups will Mario receive?
How many coins are left over? read more ..

Guest Nov 26, 2019

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