2 years ago

Does anyone know a math equation using the distributive property that equals 15

Mathematics

1 answer:

Lubov Fominskaja [6]2 years ago

5 0

Answer:

3(5)=x

Explenation:

3*5 is equal to 15

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Product is -8 and sum is 2.<br> What are the two numbers

anygoal [31]

Step-by-step explanation:

Let the two numbers be x and y.

$\therefore \: xy = - 8...(1) \\ and \\ x + y = 2 \\ \\ \therefore \:x = 2 - y...(2)$

From equations (1) & (2)

$(2-y)y=-8\\\therefore \: 2y - y^2 = - 8\\\\\therefore \:y^2 - 2y-8=0\\\\\therefore \:y^2 - 4y+2y-8=0\\\\\therefore \:y(y - 4)+2(y-4)=0\\\\\therefore \:(y+2)(y - 4)=0\\\\\therefore \:(y+2)=0\:\: or\:\:(y - 4)=0\\\\\therefore \:y=-2\:\: or\:\:y =4\\\\ When \:\: y = - 2\implies x = 4\\\\When \:\: y = 4\implies x = - 2\\$

Thus, the two numbers are (4, - 2) or (-2, 4).

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4 years ago

1. Your algebra test scores for one semester.

VLD [36.1K]

I believe they are Discrete

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3 years ago

Help please. I don’t understand this topic

dusya [7]

The second option is your answer.

2(1) - 3 = 2 - 3 = - 1

2(2) - 3 = 4 - 3 = 1

2(3) - 3 = 6 - 3 = 3

2(4) - 3 = 8 - 3 = 5

- 1 + 1 + 3 + 5 = 8

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3 years ago

Find the surface area of cube whose volume is 64 cm cube

Oksana_A [137]

V = L³ = 64 => L = ∛64 = 4 cm

A = L² = 4² = 16 cm²

At = 16 x 6 = 96 cm²

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3 years ago

The Luxor Hotel, in Las Vegas, is a square pyramid with lateral faces consisting of black, glass mirrored panes. The building is

galben [10]

Easiest way to get the surface area of the lateral square pyramid is by using the formula:

$A_{L} = a \sqrt{ a^{2}+4 h^{2} }$
a = Base edge = 646 ft
h = Height = 350 ft

Using the formula:
$A_{L} = 646 \sqrt{ 646^{2}+4 350^{2} }$
[tex]A_{L} = 6.15335×10^{5} square feet
[tex]A_{L} = 615335<span> square feet</span>

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3 years ago