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mylen [45]
2 years ago
15

What invention lets you look right through a wall?

Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
4 0
A window is the invention
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What is the slope of the line that passes through the points (-10, -8) and
bazaltina [42]
First of all we have to find the slope


m = y₂-y₁ / x₂-x₁

m = -8 + 16 / -10 + 8

m = 8/-2

m = -4

y-y₁ = m (x-x₁)

y + 8 = -4 (x + 10)

y + 8 = -4x - 40

y = -4x -40 - 8

y = -4x -48
7 0
2 years ago
The set of whole numbers is not a subset OF--
Andrews [41]
I’m pretty sure it’s b
5 0
2 years ago
Read 2 more answers
A sporting goods store is having a 15% off sale on all items. Which functions can be used to find the sale price of an item that
asambeis [7]
The answers are: 
<span>ƒ(x) = x - .15x
</span><span>Sale = Original - .15(Original)
</span><span>y = .85x

Let sale price be f(x) and x be the original price. Discount was 15% = 0.15
f(x) = x - 0.15x

If f(x) is sale and x is the original, then:
</span><span>Sale = Original - .15(Original)

Let sale price be y and original price x:
y = x - 0.15x
y = 1 * x - 0.15 * x
y = (1 - 0.15) * x
y = 0.85x</span>
3 0
3 years ago
The sum of the square of two consecutive whole number is 25. Find the numbers
Gnom [1K]
Don't you mean "the sum of the squares ..."?
The sum of the squares of two consecutive whole numbers is 25.  Find the numbers.  Let the first be represented by x and the second by x+1.
Then x^2+(x+1)^2=25.  Expanding, x^2+x^2+2x+1=25.
Rewriting this as a quadratic equation in standard form,

2x^2+2x+1=25, or 2x^2+2x-24=0.  Simplifying, x^2+x-12=0.
Factoring, (x-3)(x+4)=0.  Solving for x:  x-3=0, so x=3; x+4=0, so x=-4.
Choose the positive x value:  x=3.  Then the next consecutive number is 2+1=3+1=4.

Check:  Does 3^2 + 4^2 = 5^2 = 25?  Yes.
The numbers are 3 and 4.
3 0
3 years ago
Por qué crees que el valor de la media no aparece en la tabla y es un número decimal?
vovikov84 [41]

La media no aparece en la tabla ya que se requiere un calculo para encontrarla, además, es un número decimal pues corresponde a la suma de los resultados dividida en el número de días.

<h3>¿Qué es la media?</h3>

En matemáticas, la media o promedio corresponde a la suma de todos los valores dividida en el número total de valores. En este caso la media corresponde a la suma de las temperaturas dividida en el número de días.

Calcular la media:

Usando la formula anterior, calculemos la media:

  • 16 + 19 +17 + 20 + 22 + 18 +15 = 127/7 = 18.7

El valor de la media es 18.7, al respecto se puede observar que:

  • Este valor no aparee en la tabla pues no corresponde a la temperatura de ningún día sino que debe ser calculado.
  • Este valor es decimal, lo que se común al hallar la media ya que se suman todos los valores y se dividen por un número determinado.

Nota: Esta pregunta esta incompleta. Aquí esta la parte faltante:

Aprenda más sobre promedio en: brainly.com/question/8917478

3 0
2 years ago
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