All Questions

590

Im confused?

When expressed in base 8, $N!$ terminates in a block of exactly 21 zeros. Find the largest positive integer $N$ with this property. (Enter $N$ as a decimal number.)
I found that 65! has a factorization that includes 2^63=8^21, but I was told that was read more ..

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Guest May 3, 2020

711

Please give an explanation

The perimeter of a rectangle is 98, and the length of one of its diagonals is 41. Find the area of the rectangle.

Also can someone answer this question for me https://web2.0calc.com/questions/quadrilateral-problem_1. There read more ..

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Guest May 3, 2020

705

+174

Alternative method?

So I was doing my math homework, and I had to find the 4,000th digit in the decimal form of 1/175. I found out the 4,000th digit was 7 by dividing 1 by 175, which is 0.00\overline{571428}. I did 2 + x * 6, in which I found x to be 666. Then plugging read more ..

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Forumofweb2.0cal May 3, 2020

735

+98

What is the exact value of sin(θ+β) given the following information?

What is the exact value of sin(θ+β)? Give your answer as a simplified fraction.

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ocmaz May 3, 2020

398

need help with roots

Let r, s, t be the roots of x^3 - 3x^2 + 7x + 11 = 0. Find r^2 + s^2 + t^2.

Guest May 3, 2020

960

+98

simplify (sin(-θ) tan(θ) )/sec(-θ)

simplify

options for the answer are:
cos^2 θ read more ..

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ocmaz May 3, 2020

-3

642

+318

Pls Help:(

Solve the equation

2sin ^2 θ-3 sin θ+1=0
read more ..

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mharrigan920 May 3, 2020

583

+210

A stone weighs 650g to the nearest 10g.

A stone weighs 650g to the nearest 10g.

What is the least possible weight of the stone?

TacoBell May 3, 2020

557

+210

simplify

simplify
w"xw#
and
w$ ÷ w! read more ..

TacoBell May 3, 2020

517

does anyone know this

The operation is defined as . What is the value of ?

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Guest May 3, 2020

704

i do not get this

Here are two functions:

If what is the value of k? read more ..

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Guest May 3, 2020

521

circle

Determine the center and radius of the circle x^2 + y^2 - 10x + 8y - 8 = 0.

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Guest May 3, 2020

949

help!!

Given , what is the smallest possible integer value for x such that f(x) has a real number value?

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Guest May 3, 2020

609

+166

Cosine Arithmetic

Compute

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HannibalBarca May 3, 2020

475

i don't understand this geometry question. :(

Let , and let be the reflection of over the line . Find the coordinates of .

(No image was given with this problem.)
read more ..

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Guest May 3, 2020

703

please help geometry questions :(

1. Let be a positive real number. The line and the circle are drawn. Find so that the line is tangent to the circle.

(No image for #1)
read more ..

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Guest May 3, 2020

569

help

What is the sum of the series 7 + 10 + 17 + 24 + ... + 479?

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Guest May 3, 2020

790

+738

help please!

The six faces of a cube are painted black. The cube is then cut into smaller cubes, all the same size. One of the small cubes is chosen at random, and rolled. What is the probability that when it lands, the face on the top is black?
read more ..

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lokiisnotdead May 3, 2020

439

can someone help with this?

A kilogram of raisins costs $6.54 and a kilogram of nuts costs $7.28.

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Guest May 3, 2020

506

PLEASE HELP!

There are ten people in the Baking Club, including Mark. They choose 3 people to form an executive committee.
How many possible committees could be formed that INCLUDE Mark?

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Guest May 3, 2020

2774

+738

𝕡𝕃𝕖𝔸𝕤𝔼 𝕙𝔼𝕃𝕡!!!

One day, River writes down the numbers 1,2,3,...999

What is the sum of all the digits that River wrote down?
read more ..

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lokiisnotdead May 3, 2020

788

+166

Trigonometry - Sine, Cosine, and Tangent

Let be an acute angle such that Find

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HannibalBarca May 3, 2020

488

need help with ratios

Find A:S:K if (A + S):(S + K):(A + K) = 2:3:4.

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Guest May 3, 2020

445

please help!

Let p and q be real numbers such that the roots of are real. Prove that the roots of are real, for any real number a.

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Guest May 3, 2020

552

+28

Use logarithmic differention to find the dervative of y with respect to the given independent variable

Use logarithmic differention to find the dervative of y with respect to the given independent variable
Y= (x+1)x

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Elola May 3, 2020

All Questions ⁺⁰237681 Questions

Im confused?

Please give an explanation

Alternative method?

What is the exact value of sin(θ+β) given the following information?

need help with roots

simplify (sin(-θ) tan(θ) )/sec(-θ)

Pls Help:(

A stone weighs 650g to the nearest 10g.

simplify

does anyone know this

i do not get this

circle

help!!

Cosine Arithmetic

i don't understand this geometry question. :(

please help geometry questions :(

help

help please!

can someone help with this?

PLEASE HELP!

𝕡𝕃𝕖𝔸𝕤𝔼 𝕙𝔼𝕃𝕡!!!

Trigonometry - Sine, Cosine, and Tangent

need help with ratios

please help!

Use logarithmic differention to find the dervative of y with respect to the given independent variable

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