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Aleksandr-060686 [28]

4 years ago

15

Detective pi is having a birthday party for the first baby rhino the cake serves 50 people and cost $120. How much does the cake

cost per person

1 answer:

irakobra [83]4 years ago

8 0

120/50=2
$2 per person

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Factor completely y^4-81x^4

Vlad [161]

$y^4-81x^4=y^4-(3x)^4=(y^2-(3x)^2)(y^2+(3x)^2)=(y-3x)(y+3x)(y^2+9x^2)$

Depending on the field over which you're factoring, you may also write the last factor as

$y^2+9x^2=(y-3ix)(y+3ix)$

4 0

4 years ago

Help help help help

goblinko [34]

Answer:

$\displaystyle m=\frac{-1}{2}$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Algebra I</u>

Reading a Cartesian plane
Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (4, 1)

Point (0, 3)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

Substitute in points [Slope Formula]: $\displaystyle m=\frac{3-1}{0-4}$
[Fraction] Subtract: $\displaystyle m=\frac{2}{-4}$
[Fraction] Simplify: $\displaystyle m=\frac{-1}{2}$

4 0

3 years ago

The radius of a circle is 2 centimeters. What is the area of a sector bounded by a 90° arc?

pochemuha

I hope this helps you

Area=90/360.pi.2^2

Area=1.pi

4 0

3 years ago

Find the surface area of the cylinder. 7 cm 5 cm The surface area of the cylinder is nothing cmsquared.

chubhunter [2.5K]

Step-by-step explanation:

surface area of cylinder =

2πr(r+h)

2×<u>2</u><u>2</u>×7(7+5)

7

44(7+5)

44(12)

528

4 0

3 years ago

ThreeThree friends board an airliner just before departure time. There are only 1010 seats left, 44 of which are aisle seats. H

Dimas [21]

Answer:

Na = 720 - 120 = 600 ways

The 3 people can arrange themselves in 600 possible ways.

Step-by-step explanation:

For at least one of the three friends to seat on an aisle seat, the number of possible arrangements can be given as;

Na = Nt - Nn .....1

Where;

Na = number of possible arrangements with at least one of the seating on an aisle seat.

Nt = total number of possible arrangements for the three friends

Nn = number of possible arrangements with none of the three friends seating on an aisle seat.

Given;

Total number of seats available = 10

Total number of aisle seats available = 4

Total number of people = 3

So;

Nt = 10C3 = 10×9×8 = 720

Nn = (10-4)C3 = 6C3 = 6×5×4 = 120

From equation 1;

Na = 720 - 120 = 600 ways

The 3 people can arrange themselves in 600 possible ways.

5 0

4 years ago