What is the mean of the following set of numbers? 30, 28, 8, 26

Mathematics

2 answers:

krok68 [10]1 year ago

8 0

Answer:

Step-by-step explanation:

To calculate mean, add numbers and divide by amount of numbers

30 + 28 + 8 + 26 = 92

92/4 = 23

Eddi Din [679]1 year ago

8 0

Answer:

to find the mean add al the numbers together then divide it by 4 because that how many numbers are there

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In 2.44 seconds lindsey be 30 feet in the air.

<h3>What is Quadratic Equation?</h3>

A quadratic equation is a second-order polynomial equation in a single variable x, ax²+bx+c=0. with a ≠ 0 .

Given:

y= -16x²+33x+45

If the height is 30 feet.

30= -16x²+33x+45

-16x²+33x+45-30=0

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16x²-33x-15=0

Solving the quadratic equation

x=-b±√b²-4ac/ 2a

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3 0

1 year ago

Para el diseño de un tanque de tratamiento de agua se determina que su centro está ubicado en la posición (0;14) metros y está r

Andreas93 [3]

Answer:

Diámetro = 8 metros

Step-by-step explanation:

La ecuación de la circunferencia esta en la forma general y para identificar su centro y su radio debemos llevarla a la forma canónica completando cuadrados:

$x^{2} +y^{2} -28y + 180= 0$

Solo necesitamos completar cuadrados en la variable y, sumando a ambos lados de la ecuación 196, que resulta de dividir 28 entre 2 y elevarlo al cuadrado

$x^{2} +y^{2} -28y + 196 = -180 +196$