All Questions ⁺⁰237357 Questions

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48

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+1776

help me

help me with geometry

bader Jan 9, 2024

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53

1

+1776

plz help

bader Jan 9, 2024

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45

1

+1776

need help with angles

bader Jan 9, 2024

+1

52

2

+291

Question

A rectangular garden has a length that is twice its width. The dimensions are increased so that the perimeter is doubled and the new shape is a square with an area of 3600 square feet. What was the area of the original garden, in square feet?

DS2011 Jan 9, 2024

+1

83

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+1932

need help with system

Find the ordered triple $(p,q,r)$ that satisfies the following system:
p - 2q &= 3 - 4p + 7q, \\
q - 2r &= -2 - 5q, \\
p + r &= 9 + 10q.

tomtom Jan 9, 2024

+1

49

1

+1932

help plz

In Linguistics $101,$ the ratio of the number of juniors to the number of seniors is $3:2$. When twelve more juniors join the class, and one senior drops the class, the ratio of the number of juniors to the number of seniors becomes $2:1$. How read more ..

tomtom Jan 9, 2024

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52

1

+1678

Algebra

All members of our painting team paint at the same rate. If $45$ members can paint a specific wall in $60$ minutes, then how long would it take $12$ members to paint the same wall, in minutes?

wiseowl Jan 9, 2024

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52

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+1678

Algebra

All members of our painting team paint at the same rate. If $40$ members can paint a $100$ square foot wall in $50$ minutes, then how long would it take the $40$ members to paint a $480$ square foot wall, in minutes?

wiseowl Jan 9, 2024

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42

1

+1678

Algebra

All members of our painting team paint at the same rate. If $50$ members can paint a $3600$ square foot wall in $20$ minutes, then how long would it take for $25$ members to paint a $4000$ square foot wall, in minutes?

wiseowl Jan 9, 2024

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46

1

+1678

Proportion

In physics, Ohm's law says that current through a wire, $I$, is directly proportional to voltage, $V$, and inversely proportional to resistance, $R$:
I = V/R
It's also true that resistance is directly proportional to the length of the wire. read more ..

wiseowl Jan 9, 2024

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34

1

+1678

Rates

A plane flies from Penthaven to Jackson and then back to Penthaven. When there is no wind, the round trip takes $3$ hours and $20$ minutes, but when there is a wind blowing from Penthaven to Jackson at $70$ miles per hour, the trip takes $3$ hours read more ..

ElectricPavlov ●

wiseowl Jan 9, 2024

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48

2

+1729

Algebra

Let $x \mathbin{\spadesuit} y = \frac{x^2}{y}$ for all $x$ and $y$ such that $y\neq 0$. Find all values of $a$ such that $a \mathbin{\spadesuit} (a + 1) = 9$. Write your answer as a list separated by commas.

parmen Jan 9, 2024

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62

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+1729

Functions

Suppose $a(x) = 2x + 5 - 3x^2 + x^3$ and $b(x) = 4 - x^2 + 4x^4$. Find $(a\circ b)(3) - (b\circ a)(3).$

parmen Jan 9, 2024

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45

1

+1729

Inverse Function

Let
\[f(x) = \frac{2x + 5}{x - 4} + \frac{x^2 + 1}{4x - 3}.\]
Find the inverse $f^{-1}(x)$.

parmen Jan 9, 2024

0

57

1

+1729

Functions

Let $f(x) = 3x - 8 + 4x^2$ and $g(x) = 15x + c - 3x^2$. Find $c$ if $(f \circ g)(x) = (g \circ f)(x)$ for all $x$.

parmen Jan 9, 2024

+1

39

2

+157

Binomial Theorem

For some real number and some positive integer the first few terms in the expansion of are
Find .
Please help ASAP... thanks so much!

BlackjackEd Jan 9, 2024

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62

1

+1776

help with geometry

bader Jan 9, 2024

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50

1

+1776

Need help

How do you solve this?

bader Jan 9, 2024

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37

3

+1678

Geometry Problem

A semicircle inscribed inside a quarter circle. Find the length of a chord of the quarter circle that is also a tangent of the semicircle. read more ..

wiseowl Jan 9, 2024

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32

1

+1556

Frustum

Find the total surface area and the volume of the conical frustum below.

kittykat Jan 9, 2024

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