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Tamiku [17]
3 years ago
6

EXPERT HELP I'LL GIVE BRAINLIEST: EXPLAIN THE ANSWER

Mathematics
2 answers:
EleoNora [17]3 years ago
8 0

Answer:

D: A prediction based on data is reliable, because the means of the samples are close together.

Step-by-step explanation:

I got it right:)

Ivahew [28]3 years ago
8 0
Jjjjjjjjjjjjjjjjjjkjkkkkjkkkkkkkkkkkkk
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Draw a quick picture to show the number 24 then draw a quick picture to show 24 after you have regrouped 1 ten as 10 ones explai
Sveta_85 [38]

Answer:


Step-by-step explanation:

Total pink triangles = 24

Let first 10 triangles be a circle

let second ten triangles be a square

⇒ red circle = 10 triangles

⇒blue square = 10 triangles

Remaining triangles = 4

Thus circle+square+4 triangles=10+10+4

                                                   =24

Refer the attached figure.

This is a quick picture to show 24 after you have regrouped 1 ten as 10 ones

5 0
3 years ago
A bike shop charges x dollars to rent a bike for a half a day. It charges (x + 40) dollars to rent a bike for a full day. The ta
Thepotemich [5.8K]
Can't answer. 
Needs number of rentals from that day.
5 0
3 years ago
The speed of a toy car over time can be represented by a parabola with minimum speed 2 m/s after 3 seconds. After 5 seconds, the
uranmaximum [27]

Answer:

Step-by-step explanation:

y=ax²+bx+c

x=0,y=0,c=0

y=ax²+bx

2=9a+3b (×-5)

3=25a+5b(×3)

add

9-10=75a-45a+15b-15b

30a=-1

a=-1/(30)

2=9×(-1/30)+3b

3b=2+3/10=23/10

b=23/30

y=-1/30 x²+23/30=-1/30(x²+23x+(23/2)²)+1/30 ×(529/4)

y=-1/30(x+23/2)²+529/120

6 0
4 years ago
Read 2 more answers
The circumference of the earth is about 40050 km. Which of the following is the closest approximation of the diameter? Use 3.14
prohojiy [21]
D is the answer
40050 divided by 3.14 is 12754.77707
7 0
4 years ago
4. Elena va a una fiesta pero no sabe que ponerse, así que lanza un moneda y un dado al
taurus [48]

Answer:

  • <u>1/4</u>

Explanation:

Hola. Puesto que tu pregunta está en español, te responderé en el mismo lenguage.

Estas son las posibilidades dadas por la combinación moneda/dado

                                      Número de combinaciones

Moneda: prenda

    Cara: vestido                 1 de 2:          1/2

     Sello: falda                    1 de 2:          1/2

Dado: color

    Par: negro                      3 de 6:          3/6

    Impar: café                     3 de 6:         3/6

En total son 2 × 6 resultados: 12 (incluye resultados repetidos, no son todos diferentes entre sí)

¿Cuántas combinaciones tienen vestido y color negro?

  • P(Vestido∩negro) = ?

Es decir: moneda = cara y dado = par

  • Son 1 × 3 = 3.

Por tanto, la probabilidad de vestido negro es:

  • 3 de 12 = 3/12 = 1/4 ← respuesta

Hay otras formas de resolverlo. Por ejemplo;

Como los resultados de lanzar la moneda y el dado son independientes:

  • P(Vestido∩negro) = P(Vestido) × P(Negro)
  • P(Vestido) = 1/2
  • P(Negro) = 3/6 = 1/2
  • P(Vestido) × P(Negro) = 1/2 × 1/2 = 1/4 ← mismo resultado
8 0
4 years ago
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