All Questions ⁺⁰235549 Questions

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Help please

Problem 1. I am placing pieces on a 3 × 3 square board such that pieces are placed on non-adjacent squares (squares that are not directly above, below, left, or right of another square). How many ways are there for me to place 4 pieces on his 3 × 3 board?
Problem read more ..

isasejahr Apr 11, 2024

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22

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+1525

Algebra

Let u and v be the solutions to 3x^2 + 5x + 7 = 2x^2 + 9x - 17. Find
\frac{u^2}{v} + \frac{v^2}{u}.

parmen Apr 11, 2024

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23

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+1525

Algebra

Let a and b be the solutions to 5x^2 - 11x + 4 = 4x^2 + 12x - 13. Find 1/a^2 + 1/b^2.

parmen Apr 11, 2024

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20

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+1525

Algebra

Let
f(x) = \sqrt{x - \sqrt{x}}.
Find the largest three-digit value of x such that f(x) is an integer.

parmen Apr 11, 2024

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8

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+52

Trigonometric Laws and Identities

A 30-foot ramp is used to move product to a loading dock. The ramp makes a 24° angle with the horizontal. The ramp is to be replaced with a ramp that is 50 feet long. What angle does this replacement ramp make with the horizontal? Round your answer to the read more ..

xXValeXx Apr 11, 2024

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20

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+52

What is the exact value of sin(-pi/12)?

What is the exact value of sin(-pi/12)?
Please explain!

xXValeXx Apr 11, 2024

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27

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+1525

Algebra

Evaluate a^3 - \dfrac{1}{a^3} if a^2 - a - 1 = 0.

parmen Apr 11, 2024

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21

2

+20

Select the correct answer. Which equation is equivalent to the given equation?

x^2+16x=22
(x+4)^2=22
(x+8)^2=86
(x+8)^2=38 read more ..

MasterUtopia Apr 11, 2024

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32

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+20

Which equation is equivalent to the given equation?

x^2+16x=22
(x+4)^2=22
(x+8)^2=86
(x+8)^2=38 read more ..

MasterUtopia Apr 11, 2024

0

12

2

+20

Select the correct answer. A theater company is considering raising the price of its tickets. It currently charges $8.50 for each ticket a

Select the correct answer. A theater company is considering raising the price of its tickets. It currently charges $8.50 for each ticket
an average of 200 tickets for each show. The company estimates that for each $0.25 increase in the read more ..

MasterUtopia Apr 11, 2024

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24

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+20

Select all the correct answers. What are the solutions of this equation?

x^2-x-56=0
answer choices
x = 7
x = 8 read more ..

MasterUtopia Apr 11, 2024

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20

2

+1525

trig

Find the length $BC$, to two decimal places.

parmen Apr 11, 2024

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15

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+1525

trig

Find the length AC, rounded to two decimal places.

parmen Apr 11, 2024

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19

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+830

Algebra

Simplify the expression
\frac{1}{\sqrt{36}} - \sqrt{27} - \frac{1}{\sqrt{27}} - \sqrt{18} + \frac{1}{\sqrt{18}} - \sqrt{9}

magenta Apr 11, 2024

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28

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+830

help Algebra

For certain values of k and m, the system
3a + 2b = 12 - 5a + 7b
8a + 6b = k - a - mb
has infinitely many solutions (a,b). What are k and m? read more ..

magenta Apr 11, 2024

0

17

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+830

Inequality

Solve the inequality (x - 2)(x + 6) \le (x - 2)(x + 5). Write your answer in interval notation.

magenta Apr 11, 2024

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26

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+830

Inequality

Solve the inequality x(x + 6) > 16 - x + 14 + x^2. Write your answer in interval notation.

magenta Apr 11, 2024

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16

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+479

Geometry

Triangle DEF is equilateral. Find AE.

DA = 3, AF = 2

ChiIIBill Apr 11, 2024

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+479

Geometry

In triangle $ABC$, $M$ is the midpoint of $\overline{BC}$, and $N$ is the midpoint of $\overline{AC}$. The perpendicular bisectors of $BC$ and $AC$ intersect at a point $O$ inside the triangle. If $\angle AOB = 90^\circ$, then find the measure read more ..

ChiIIBill Apr 11, 2024

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17

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+479

Geometry

Points $A$, $B$, and $C$ are on a circle such that $AB = 8$, $BC = 15$, and $AC = 12$. Find the radius of the circle.

ChiIIBill Apr 11, 2024

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20

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+279

Counting

How many ways can you write two different letters chosen from
A B C D E F G H I J K L M N O P
so that they are in alphabetical order, and the first letter is a vowel? For example, AF and EN count, but DE and KC do not.

fjeihqoO Apr 11, 2024

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