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ValentinkaMS [17]
3 years ago
8

A box has four coins coin 1 has both sides tails coin 2 has both sides heads coin 3 has both sides heads coin 4 if a regular coi

n (1 side heads and 1 side tails) if we randomly select one coin from the box and flip, what is the probability we get heads?
Mathematics
1 answer:
zysi [14]3 years ago
6 0
Fuyft7euurfufbe  rygryeue  ryygyd eyfkhf
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Serggg [28]

Answer:

i think two months im not sure tho

Step-by-step explanation:

5 0
3 years ago
Find the inverse of function f.
denis23 [38]

Answer:

Step-by-step explanation:

Let's solve for f.

fx=

1

3

x−2

Step 1: Divide both sides by x.

fx

x

=

1

3

x−2

x

f=

x−6

3x

Answer:

f=

x−6

3x

6 0
2 years ago
−7x + 25 = 48 Step 1: −7x + 25 − 25 = 48 − 25 Step 2: −7x = 23 Step 3: negative seven times x over seven = twenty-three over sev
Alexxandr [17]

Answer:

Step 3: He should have divided both sides by −7

Step-by-step explanation:

Incorrect calculation

−7x + 25 = 48

Step 1: −7x + 25 − 25 = 48 − 25 Step 2: −7x = 23

Step 3: negative seven times x over seven = twenty-three over seven

-7*x/7 = 23/7

-7x/7 = 23/7

Step 4: x = twenty-three over seven

Correct calculation

−7x + 25 = 48

Step 1: −7x + 25 − 25 = 48 − 25 Step 2: −7x = 23

Step 3: negative seven times x over seven = twenty-three over seven

-7*x/-7 = 23/-7

-7x/-7 = 23/-7

Step 4: x = twenty-three over negative seven

x = -23/7

5 0
3 years ago
What is the surface area of this composite figure?
faust18 [17]

Answer:

<h2>          294 cm²</h2>

Step-by-step explanation:

6\cdot6+5\cdot(6\cdot7)+6\cdot4+2\cdot(\frac12\cdot6\cdot4)=36+210+24+24=294\,cm^2

4 0
3 years ago
Considere la siguiente ecuación: 16a – ( 3a – (6 – 9a) ) = 30a + ( – (3a + 2) – (a + 3) ) III) Al romper paréntesis, agrupar tér
Mamont248 [21]

Answer:

La ecuación simplificada es  a = \frac{11}{19}.

Step-by-step explanation:

Tenemos la siguiente ecuación simultánea: 16\cdot a - [3\cdot a - (6-9\cdot a)] = 30\cdot a +[-(3\cdot a+2)-(a+3)]. El procedimiento consiste en destruir los paréntesis desde dentro hacia fuera, agrupar los términos semejantes y simplificar. Presentamos el proceso paso por paso:

1) 16\cdot a - [3\cdot a - (6-9\cdot a)] = 30\cdot a +[-(3\cdot a+2)-(a+3)] Dado

2) 16\cdot a -\{3\cdot a + (-1)\cdot [6+(-1)\cdot 9\cdot a]\} = 30\cdot a +\{(-1)\cdot (3\cdot a +2)+(-1)\cdot (a+3)\}  -b = (-1)\cdot b

3) 16\cdot a -\{[(-1)\cdot (6)+(-1)\cdot (-1)\cdot 9\cdot a]\}= 30\cdot a +\{\left[(-1)\cdot (3\cdot a) + (-1)\cdot (2)\right] +[(-1)\cdot a +(-1)\cdot (3)] \} Propiedad distributiva

4) 16\cdot a -(-6+9\cdot a) = 30\cdot a +(-3\cdot a -2-a-3) -b = (-1)\cdot b/ (-b)\cdot (-c) = b\cdot c

5) 16\cdot a +(-1)\cdot (-6+9\cdot a) = 30\cdot a -4\cdot a-5 Propiedad distributiva/Definiciones de adición y sustracción/-b = (-1)\cdot b

6) 16\cdot a +[(-1)\cdot (-6)+(-1)\cdot (9\cdot a)] = 26\cdot a -5 Propiedad distributiva/Definiciones de adición y sustracción/Propiedad modulativa.

7) 16\cdot a +6-9\cdot a = 26\cdot a - 5  -b = (-1)\cdot b/ (-b)\cdot (-c) = b\cdot c

8) 7\cdot a +6 = 26\cdot a - 5 Propiedad distributiva/Definiciones de adición y sustracción.

9) 6+5 = 26\cdot a -7\cdot a Compatibilidad con la adición/Definición de sustracción.

10) 11 = 19\cdot a Propiedad distributiva/Definiciones de adición y sustracción.

11) 19\cdot a = 11 Simetría de la igualdad.

12) a = \frac{11}{19} Compatibilidad con la multiplicación/Existencia del inverso multiplicativo/Propiedad modulativa/Definición de división/Resultado.

La ecuación simplificada es  a = \frac{11}{19}.

8 0
3 years ago
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