All Questions

453

Math help

A warehouse is stacking up two different kinds of crates to save more space. The tall crate is 5 feet tall, while the short one is 3 feet tall. The warehouse manager is looking at two different options to stack them.

option A: stack read more ..

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Guest Dec 18, 2020

800

+20

A hot bowl of soup cools according to Newton’s law of cooling...

A hot bowl of soup cools according to Newton’s law of cooling. Its temperature (in ∞F) at time t is given by T(t) = 76+105e^-0.125t, where t is given in minutes.

What was the initial temperature of the soup?
read more ..

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dakota2290 Dec 18, 2020

636

+20

A fruit fly experiment starts with 600 flies...

A fruit fly experiment starts with 600 flies. If the population increases following exponential growth and there are 1000 flies after 2 days, how many days will it be until there are 10000 flies?

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dakota2290 Dec 18, 2020

511

HELP plz

a) How many positive integers N from 1 to 5000 satisfy the congruence N equiv 5 (mod 12)?
b) How many positive integers N from 1 to 5000 satisfy the congruence N equiv 11 (mod 13)?
c) How many positive integers N from read more ..

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Guest Dec 18, 2020

470

Help!

A weightlifter is training using a number of 10 and 25 kilogram weight plates. He can lift up to 165 kilograms. Which of the following is a combination of weights that the weightlifter can't lift?

four 25 kilogram abs four 10 kilogram read more ..

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Guest Dec 18, 2020

611

+421

Analytic geo, perhaps?

This problem is very intresting, as I first got the correct answer using analytic geo, but wondered if there was another, easier way to do this.

If ΔBCD is isosceles and ㄥADC = 105° and BC = 5√6, find AC in the figure below: read more ..

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Pangolin14 Dec 18, 2020

500

quadratic

There are 5 quadratics below. Four of them have two distinct roots each. The other has only one distinct root; find the value of that root.

x^2 - 4x + 5
9x^2 - 6x + 4 read more ..

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Guest Dec 18, 2020

450

algebra

What is the sum of all possible values of k for which x^2 + kx - 10x + 16 is the square of a binomial?

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Guest Dec 18, 2020

490

Math help!!

The solution (2,1) is feasible for which of the following inequalities?

-2x - 4y > -6
read more ..

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Guest Dec 18, 2020

496

continuous graph

For real numbers x, let
f(x) = x + 2 if x > 3
f(x) = 2x - 3a if x <= 3
What must the value of a be to make the piecewise function f(x) continuous (which means that its graph can be drawn without lifting your pencil from the read more ..

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Guest Dec 18, 2020

468

How to show my work with these

1. (3 x 2^2) / (6 - 4)

2. 3^3 x (6 + 2 - 8)
read more ..

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Guest Dec 18, 2020

525

Really need help- How do I show my work for these?

1. 2^3 x (8+4-10)

2. 2 x (3^3 - 5 + 8)

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Guest Dec 18, 2020

677

How do I show my work for this question?

23 x (8+4-10)

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Guest Dec 18, 2020

443

Polynomial functions

(A) given the following equation x4+3x3-3x-1use synthetic division to test the following 3 pts and show if they are root or not. Test these 3 possible root pts also called possible zeros using synthetic division. (x,y)=(-3,0) ; (1,0) ; (2,0).
read more ..

AceofSpades Dec 18, 2020

555

triangle problem

In triangle ABC, altitudes AD, BE, and CF intersect at the orthocenter H. If angle ABC = 49 and angle ACB = 21, then find the measure of BHC, in degrees.

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Guest Dec 18, 2020

622

+77

really need help right now

In triangle $ABC$, $AB=c$, $BC=a$, $CA=b$, $\angle A = \alpha$, $\angle B = \beta$, and $\angle C = \gamma$ where all angles are measured in degrees. Suppose that $b^2-a^2=ac$ and $\beta^2 = \alpha \gamma$. Find $\lfloor 10\beta \rfloor$.

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Jonjon Dec 18, 2020

484

solve for X

2^(3x)=3^(2x+1)

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Guest Dec 18, 2020

495

function

Let r(x) =1/(1-2x). What is r(r(r(r(r(r(30))))) (where r is applied 6 times)?

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Guest Dec 18, 2020

372

Parallel Line

(Parallel lines and transversal statements Question) Refer to this image: https://ibb.co/CHg6Bnj

Guest Dec 18, 2020

375

Write a function in the form of g(x)=a⋅b^x with the points graphed as (0,6) and (1,9)

Guest Dec 18, 2020

721

+44

Solve for x and y

3x+2y=16
7x+1y=19

A. (-2,-5) read more ..

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shelbyrai3434 Dec 18, 2020

523

triangle question

In right triangle ABC, angle B=90 degrees, and D and E lie on AC such that BD is a median and BE is an altitude. If BD=3 x DE, compute AB/EC.

read more ..

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Guest Dec 18, 2020

653

10 years ago Mrs.Smith’s age was 17 times her daughter Angela’s age. 6 years later, Mrs.Smith’s age would be 4 years less than three times A

10 years ago Mrs.Smith’s age was 17 times her daughter Angela’s age. 6 years later, Mrs.Smith’s age would be 4 years less than three times Angela’s age. Assuming Mrs. Smith’s present age as x years and Angela’s age read more ..

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Guest Dec 18, 2020

548

giai he phuong trinh cho nao z ?

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Guest Dec 18, 2020

All Questions ⁺⁰237641 Questions

Math help

A hot bowl of soup cools according to Newton’s law of cooling...

A fruit fly experiment starts with 600 flies...

HELP plz

Help!

Analytic geo, perhaps?

quadratic

algebra

Math help!!

continuous graph

How to show my work with these

Really need help- How do I show my work for these?

How do I show my work for this question?

Polynomial functions

triangle problem

really need help right now

solve for X

function

Parallel Line

Write a function in the form of g(x)=a⋅b^x with the points graphed as (0,6) and (1,9)

Solve for x and y

triangle question

10 years ago Mrs.Smith’s age was 17 times her daughter Angela’s age. 6 years later, Mrs.Smith’s age would be 4 years less than three times A

giai he phuong trinh cho nao z ?

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