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zloy xaker [14]
3 years ago
8

Can someone please help me use a protractor on this question since I don’t have one?

Mathematics
1 answer:
jekas [21]3 years ago
6 0

Answer:

If you don't have a protractor handy, you can determine the size of an angle using the basic geometric principles of triangles. You'll need a scientific calculator to solve the equations. Most smartphones are equipped with them, but you can also download a free app or access a free calculator online.

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A random sample of 450 vacationers in a huge luxury resort showed that 150 were business executives. We want to create a 95% con
Zolol [24]

Answer:

p(s) = 0,33

Step-by-step explanation:

n = 450

p₀ = 150/450       p₀ = 0,33      then    q₀  = 0,67

n*p₀ = 0,33*450  =  150

n*q₀  = 0,67*450 = 301

n*p₀  and n*q₀   more than 10, we can approximate  the binomial to a Normal Distribution Distribution

a) p - p₀  = z(c) * √ (p₀q₀)/n

z(c) =  ??

CI   95 %    then α = 5 %    α = 0,05      α/2 = 0,025

z(c) = 1,96

p  =  p₀  ±  z(c) * √ (p₀q₀)/n

p  = 0,33 ± 1,96 * 0,022

p =  (  0,33 - 0,04 ;  0,33 +  0,04

p = ( 0,29  ; 0,37 )

The value of the center of the confidence Interval is 0,33

p(s) = 0,33

7 0
3 years ago
Help and please explain!
UkoKoshka [18]

Answer:

a. 146

Step-by-step explanation:

{4*[72-6*(3+2)]}-22

=[4*(72-6*5)]-22

=[4*(72-30)]-22

=(4*42)-22

=168-22

=146

4 0
3 years ago
em um triângulo retângulo a hipotenusa mede 15 cm e um dos catetos mede 12 cm.Qual é o perímetro desse retângulo?
ElenaW [278]
The answer to Em um triângulo retângulo a hipotenusa mede 15 cm e um dos catetos mede 12 cm.Qual é o perímetro desse retângulo? 
<span><span><span>borda a =12 </span>unidades
</span><span><span>borda b =9 </span>unidades
</span><span><span>borda c =15 </span>unidades
</span><span><span>ângulo A =</span>53.1 graus
</span><span><span>ângulo B =36.9 </span>graus
</span><span><span>área=54 </span>square </span></span>unidades
Agora temos que
Determinar o comprimento da base do triângulo.
Calcula-se a altura do triângulo.
Multiplicar o comprimento da base por o comprimento da altura.
Multiplique por dois.
<span>Adicionar a unidade de medida apropriada.</span>

5 0
3 years ago
Is 36 T-shirts in 3 boxes equivalent to 60 T-shirts in 6 boxes?
kolbaska11 [484]

Answer:no it is not equivalent

Step-by-step explanation:

36x3=108 so there is 108 shirts in that box

60x6=360 so 360 is in that box


so not equivalent because they have different amounts in the boxes one is more and the other one less


your welcome

7 0
3 years ago
Read 2 more answers
20 Points and markwd brainliest
liberstina [14]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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