All Questions

876

+236

An athlete's target heart rate, in beats per minute, is 80% of the theoretical maximum heart rate.

An athlete's target heart rate, in beats per minute, is 80% of the theoretical maximum heart rate. The maximum heart rate is found by subtracting the athlete's age, in years, from 220. To the nearest whole number, what is the target heart rate of an read more ..

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Choff Jan 28, 2021

440

help plz

$ABCD$ is a parallelogram. The point $E$ is in the segment $BC$, and $F$ is a point in the line $DC$ such that $AF$ pass through the point $E$ and intersect the segment $BD$ in the point $G$. If $AG=6$ and $GE=4$. How long is $EF$?
read more ..

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Guest Jan 28, 2021

528

-1295x(1+0.20)^7+500x(1+0.20)^6+520x(1+0.20)^5+435x(1+0.20)^4+400x(1+0.20)^3+225x(1+0.20)^2+600x(1+0.20)+400

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Guest Jan 28, 2021

468

polynomial

Find a monic quartic polynomial with rational coefficients whose roots include 2+sqrt(2) and 1-sqrt(5) . Give your answer in expanded form.

MaxWong ●

Guest Jan 28, 2021

543

+328

How many ways can you write 410 as the sum of 4 different 3-digit numbers, assumingorder does not matter?

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Potatobird Jan 28, 2021

445

intermediate algebra

Let x, y and z be positive real numbers such that x + y + z = 1. Find the maximum value of xyz.

MaxWong ●

Guest Jan 28, 2021

487

Pls Help and Explain Pls

Two side lengths of a triangle are 17 and 11. What is the longest possible integer length of the third side of the triangle?

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Guest Jan 28, 2021

-1

700

what is the dependnt variable for v=1/3bh

Tell me

MaxWong ●

Guest Jan 28, 2021

476

Triangle to square ratio

The largest possible equilateral triangle is inscribed in a square. Triangle's vertices must touch either side of a square or its vertex. Find the ratio of the area of a triangle to the area of a square.

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Guest Jan 28, 2021

480

Real numbers x and y

Real numbers x and y satisfy.

xy^2 = 240y
x^2*y^2 = -250y read more ..

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Guest Jan 28, 2021

415

function

If f(x) = 5x - 12, find a value for x so that f(x) = f(2x + 1).

MaxWong ●

Guest Jan 28, 2021

508

6the grade math Question

In the past month, Michael rented 1 video game and 5 DVDs. The rental price for the video game was $2.30. The rental price for each DVD was $3.40. What is the total amount that Michael spent on video game and DVD rentals in the past month?

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sisgirl Jan 28, 2021

559

sum

The sum of the first n terms of 1 + 3 + 5 + 7 + 9 + .. is 144. Find n.

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Guest Jan 28, 2021

436

need help

Margaret started a stamp collection. She collected 8 stamps the first day. Each subsequent day she collected 7 more stamps than she had collected the previous day. If she collected stamps for 5 consecutive days, what was the average number of stamps collected read more ..

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Guest Jan 28, 2021

465

coordinate geometry

What is the area of the portion of the circle defined by x^2 - 12x + y^2 = 28 that lies above the x-axis and to the right of the line y = 8 - x?

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Guest Jan 28, 2021

519

Solve derivative

How do I solve the derivative of
i got it to
Then to get the derivative I did to
And that equals to 0 but it says it was the wrong answer, how do I solve this?

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Guest Jan 28, 2021

271

Given that 16b - 24ab^2 = 72, and 2ab=3b+1, find 2a^2-a.

Guest Jan 28, 2021

779

+69

Circle in a trapezoid problem

Quadrilateral ABCD is an isosceles trapezoid, with bases AB and CD. A circle is inscribed in the trapezoid, as shown below. (In other words, the circle is tangent to all the sides of the trapezoid.) The length of base AB is 2x and read more ..

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ddocm Jan 28, 2021

325

Need help

Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 18 feet by 4 feet by 3 inches for a patio if the concrete costs $33.00 per cubic yard? Round your answer to the nearest whole dollar.

Note: Enter read more ..

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Guest Jan 28, 2021

362

number theory

What is the least five-digit positive integer which is congruent to 5 (mod 18)?

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Guest Jan 28, 2021

586

If ur Smart solve this

A train traveling at 100 km an hour takes 3 seconds to enter a tunnel and an additional thirty seconds to pass completely through it. Find the length, in kilometers, of the train. Express your answer as a common fraction.

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Guest Jan 28, 2021

491

+50

Consider the series 3/10 + 3/2 + 15/2 + 75/2 + 325/2 + ...

Consider the series 3/10 + 3/2 + 15/2 + 75/2 + 325/2 + ...
Does the series converge or diverge?

The series _____. You know this because the series is _____. read more ..

nicoledakota2290 Jan 28, 2021

416

+50

Which expression correctly shows how to use the binomial theorem to determine the 4th term in the expansion of (2x^3y+y)^7

Which expression correctly shows how to use the binomial theorem to determine the 4th term in the expansion of (2x^3y+y)^7

Thank you!

nicoledakota2290 Jan 28, 2021

515

Which expression correctly shows how to use the binomial theorem to determine the 4th term in the expansion of (2x^3y+y)^7

Which expression correctly shows how to use the binomial theorem to determine the 4th term in the expansion of (2x^3y+y)^7

Thank you!

Guest Jan 28, 2021

Jan 27, 2021

402

The nth term of a series is represented by an = 6n / (5^n+1) · n

The nth term of a series is represented by an = 6n / (5^n+1) · n

Mario correctly applies the ratio test to determine whether the series converges or diverges.
read more ..

Guest Jan 27, 2021

All Questions ⁺⁰234765 Questions

An athlete's target heart rate, in beats per minute, is 80% of the theoretical maximum heart rate.

help plz

-1295x(1+0.20)^7+500x(1+0.20)^6+520x(1+0.20)^5+435x(1+0.20)^4+400x(1+0.20)^3+225x(1+0.20)^2+600x(1+0.20)+400

polynomial

How many ways can you write 410 as the sum of 4 different 3-digit numbers, assumingorder does not matter?

intermediate algebra

Pls Help and Explain Pls

what is the dependnt variable for v=1/3bh

Triangle to square ratio

Real numbers x and y

function

6the grade math Question

sum

need help

coordinate geometry

Solve derivative

Given that 16b - 24ab^2 = 72, and 2ab=3b+1, find 2a^2-a.

Circle in a trapezoid problem

Need help

number theory

If ur Smart solve this

Consider the series 3/10 + 3/2 + 15/2 + 75/2 + 325/2 + ...

Which expression correctly shows how to use the binomial theorem to determine the 4th term in the expansion of (2x^3y+y)^7

Which expression correctly shows how to use the binomial theorem to determine the 4th term in the expansion of (2x^3y+y)^7

The nth term of a series is represented by an = 6n / (5^n+1) · n

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