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Vilka [71]
3 years ago
12

48 ÷ [(5 + 16) − 13]

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
3 0

Answer:

6

Step-by-step explanation:

48 ÷ [(5 + 16) − 13]

PEMDAS work from the inside out

48 ÷ [21 − 13]

48 ÷ [8]

6

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Order the following from greatest to least 1/4, 0.33, 1/8, 0
schepotkina [342]

Answer: 0.33 , 1/4 , 1/8 , 0

Step-by-step explanation:

1/4 is 0.25

1/8 is 0.125

After converting to decimal it’s all easy

4 0
3 years ago
Read 2 more answers
In a recent year, a sample of grade 8 Washington State public school students taking a mathematics assessment test had a mean sc
Daniel [21]

Answer:

The  number is  N  =1147 students

Step-by-step explanation:

From the question we are told that

    The population mean is  \mu  =  281

     The standard deviation is  \sigma  =  34.4

    The sample size is  n = 2000

percentage of the would you expect to have a score between 250 and 305 is mathematically represented as

      P(250 <  X <  305 ) =  P(\frac{ 250 - 281}{34.4 }  <  \frac{X - \mu }{\sigma }  < \frac{ 305 - 281}{34.4 }   )

Generally  

             \frac{X - \mu }{\sigma }  =  Z  (Standardized \ value \  of  \  X )

So  

         P(250 <  X <  305 ) =  P(-0.9012<  Z

       P(250 <  X <  305 ) = P(z_2 < 0.698 ) -  P(z_1 <  -0.9012)

From the z table  the value of  P( z_2 < 0.698) =  0.75741

                                         and  P(z_1 < -0.9012) =  0.18374

     P(250 <  X <  305 ) = 0.75741 - 0.18374

      P(250 <  X <  305 ) =  0.57

The  percentage is  P(250 <  X <  305 ) =  57\%

The  number of students that will get this score is

           N  = 2000 * 0.57

           N  =1147

6 0
3 years ago
46+ 2/7w<br> w= -1/2<br> You don't need to show your work
Tomtit [17]
46.1428 or -46(3/14)
3 0
2 years ago
Can you guys help me out pls
kozerog [31]
Answer is for sure b
8 0
2 years ago
Who would you go about this.
Nostrana [21]
A. First move all to the left side of the equation(Normal form)

x^3 - 49x= 0

B. Factor out an x, which is the GCF (Factored form)

x(x^2 - 49) = 0

C. Find solutions by making each x piece equal to 0. The first part is just x=0 and the second part is just factoring the difference of squares and then solving.

x=0, x^2 - 49 =0

x=0, x + 7 = 0, x - 7 = 0

Therefore, the answers for Part C are:
x = 0, x = -7, x = 7
6 0
2 years ago
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