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Blizzard [7]
3 years ago
10

ASAP PLEASE HELP!! WILL GIVE BRAINEST!!! what is the value of x and y

Mathematics
1 answer:
antoniya [11.8K]3 years ago
7 0

Answer:

Step-by-step explanation:

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How many strings of eight uppercase English letters are there that start with X, if no letter can be repeated?
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X 25*24*23*22*21*20*19
which gives you
2,422,728,000
5 0
3 years ago
An airline promotion to business travelers is based on the assumption that two-thirds of business travelers use a laptop compute
skad [1K]

Answer:

a

  The null hypothesis is  H_o  :  p =  0.67

   The alternative hypothesis is  H_a : p \ne 0.67

b

 The sample proportion is \^ p  =  0.65

Step-by-step explanation:

From the question we are told that

     The sample size is  n =  546  

      The number of people that use a laptop overnight is  k = 355

    The population proportion is  p =  \frac{2}{3}  =  0.67

   Generally

  The null hypothesis is  H_o  :  p =  0.67

   The alternative hypothesis is  H_a : p \ne 0.67

Gnerally the sample proportion is mathematically represented as

        \^ p  =  \frac{ k}{n}

=>     \^ p  =  \frac{ 355}{546}

=>     \^ p  =  0.65

4 0
3 years ago
Write an expression that can be used to multiply 6x198 mentally
VashaNatasha [74]
6×100
6×90
6×8
hope this helps
7 0
3 years ago
Given Triangle IFN congruent to Triangle SJP, name all the pairs of corresponding parts.
Gemiola [76]
Sides
IF=SJ
FN=JP
NI=PS

Angles
I=S
F=J
N=P
5 0
3 years ago
Calcular el valor del ángulo que falta de dun triangulo rectangulo si uno de sus lados mide 25 grados.
Blizzard [7]

Considerando la definición de triángulo rectángulo y sus propiedades, el valor del ángulo que falta de un triángulo rectángulo es 65°.

<h3>Definición de triángulo</h3>

Un triángulo es un polígono que está determinado por tres segmentos de recta que se denominan lados, o por tres puntos no alineados llamados vértices.

En otras palabras, un triángulo es un polígono conformado por tres lados, así como por tres vértices y tres ángulos interiores.

Una de las propiedades de cualquier triángulo indica que la suma de los ángulos interiores es igual a 180°.

<h3>Definición de triángulo rectángulo</h3>

El triángulo rectángulo es una figura geométrica que se considera como un polígono formado por tres lados que forman un ángulo recto y dos ángulos agudos.

En otras palabras, el triángulo rectángulo es aquel que tiene un ángulo interior que es recto, es decir, mide 90º.

<h3>Valor del ángulo faltante en este caso</h3>

En este caso, sabes que:

  • Al ser un triángulo rectángulo, un ángulo interior mide 90°.
  • Otro ángulo interior mide 25°.
  • La suma de los ángulos interiores es igual a 180°.

Entonces, el valor del ángulo faltante se puede calcular mediante:

90° + 25° + ángulo faltante= 180°

Resolviendo:

115° + ángulo faltante= 180°

ángulo faltante= 180° - 115°

<u><em>ángulo faltante= 65°</em></u>

Finalmente, el valor del ángulo que falta de un triángulo rectángulo es 65°.

Aprende más sobre los ángulos de un triángulo:

brainly.com/question/21439270

brainly.com/question/21729438

brainly.com/question/27901271

#SPJ1

8 0
2 years ago
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