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421

Help please!

Consider the following statement: Let f be a function, such that for all a and b in the domain of f, f(a)=f(b) implies a=b. Then the function f has an inverse.
Is this statement true or false?

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Guest Nov 19, 2020

411

How many 4-digit numbers

How many 4-digit numbers have the second digit even and the fourth digit at least three times the second digit?

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Guest Nov 19, 2020

503

common factors

How many positive divisors do 852, 8400, and 7560 have in common?

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Guest Nov 19, 2020

572

The integers G and H are chosen

The integers G and H are chosen such that
G/(x + 5) + H/(x^2 - 4x) = (3x^2 - 13x - 5)/(x^3 + x^2 - 20x)
for all values of x except -5, 0, and 4. Find H/G.

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Guest Nov 19, 2020

552

The inhabitants of the island of Jumble use the standard Roman alphabet (26 letters, A through Z).

The inhabitants of the island of Jumble use the standard Roman alphabet (26 letters, A through Z). Each word in their language is 3 letters, and for some reason, they insist that all words contain the letter A or B at least once. How many 3-letter words read more ..

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Guest Nov 19, 2020

636

+153

I need halp soon

Asuming that p and q are nonzero simplify: $\dfrac{(pq^3)^3(4p^2q)^2}{(2pq^2)^3}$

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Thanks4helping Nov 19, 2020

784

+38

trig questions

which of the following is equivalent to the expression sin 2x cos x-sin x cos2x

a. sinx
b. sin 3x read more ..

asinus ●●

Debnath Nov 19, 2020

502

help?

1000=4*2^m-1

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Guest Nov 19, 2020

461

In a three-digit number

In a three-digit number, the hundreds digit is greater than 6, the tens digit is greater than 5 but less than 8, and the units digit is the smallest prime number. How many three-digit numbers satisfy all of these conditions?

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Guest Nov 19, 2020

531

I need calculations for this thanks

1. A skydiver jumps from a hovering helicopter that is 3640 meters above the ground. If air resistance can be ignored, how fast will he be falling when his
altitude is 2,430 m?
2. A box is projected up a long ramp (incline angle with read more ..

Guest Nov 19, 2020

482

quadratic

If we express 3x^2 - 8x - 2 in the form a(x - h)^2 + k, then what is a + h + k?

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Guest Nov 19, 2020

1534

Your math club has 20 members.

Your math club has 20 members. In how many ways can it select a president and a vice-president if no member can hold more than one office?

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Guest Nov 19, 2020

633

how much smaller is 2 × 10^6 than 4 × 10^3?

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Guest Nov 19, 2020

711

A pentagon ABCDE is translated north by 40 units to pentagon A1B1C1D1E

A pentagon ABCDE is translated north by 40 units to pentagon A1B1C1D1E1. Pentagon A1B1C1D1E1 is then translated east by 150 units to pentagon A2B2C2D2E2. We know the perimeter of pentagon ABCDE is 30 units. Find CC2.

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Guest Nov 19, 2020

456

Help please

Find the intersection of the lines 9x-4y=30 and 7x+y=11. Express your answer as an ordered pair (x,y).

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Guest Nov 19, 2020

590

+153

Need help guys

Expand $3p^5q^3\left( 2pq + \frac{5}{(pq)^2} \right)$

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Thanks4helping Nov 19, 2020

905

College Algebra Help

A waitress sold 20 ribeye steak dinners and14 grilled salmon dinners, totaling $591.53 on a particular day. Another day she sold 24ribeye steak dinners and 7 grilled salmon dinners, totaling $581.91. How much did each type of dinner cost? read more ..

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Guest Nov 19, 2020

613

circle translated

A circle with radius 2 is translated 5 units. What is the perimeter of the region swept out by the circle?

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Guest Nov 19, 2020

605

+153

Help me with this problem please

Evaluate the following when $a = 3$ , $b = \frac14$, and $c = 5$ :

read more ..

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Thanks4helping Nov 19, 2020

643

+153

Repost because I got no answer

https://web2.0calc.com/questions/halp-me-asap_1

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Thanks4helping Nov 19, 2020

437

A regular pentagon is rotated counterclockwise about its center

A regular pentagon is rotated counterclockwise about its center until it coincides with its original position. If the pentagon is rotated by an obtuse angle, then what is the obtuse angle?

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Guest Nov 19, 2020

Nov 18, 2020

513

I desperately need help :')

Janice gave me a calculator with a special button marked * This button behaves weirdly: When an odd integer is displayed, pressing the * button multiplies the number by 3 and then subtracts 1 When an even integer is displayed, pressing the * button read more ..

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Guest Nov 18, 2020

551

go answer this question? It's been sitting there for some time now...

https://web2.0calc.com/questions/x-2-px-q-0-has-one-negative-solution-and-one-positive

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Guest Nov 18, 2020

All Questions ⁺⁰237641 Questions

Help please!

How many 4-digit numbers

common factors

The integers G and H are chosen

The inhabitants of the island of Jumble use the standard Roman alphabet (26 letters, A through Z).

I need halp soon

trig questions

help?

In a three-digit number

I need calculations for this thanks

quadratic

Your math club has 20 members.

how much smaller is 2 × 10^6 than 4 × 10^3?

A pentagon ABCDE is translated north by 40 units to pentagon A1B1C1D1E

Help please

Need help guys

College Algebra Help

circle translated

Help me with this problem please

Repost because I got no answer

A regular pentagon is rotated counterclockwise about its center

I desperately need help :')

go answer this question? It's been sitting there for some time now...

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