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malfutka [58]
3 years ago
12

Simplify 24 ÷ (-2)(3) + 7Simplify 24 ÷ (-2)(3) + 7

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
7 0

Solving the expression 24\div (-2)(3) + 7 we get -29

Step-by-step explanation:

We need to simplify 24\div (-2)(3) + 7

Solving:

24\div (-2)(3) + 7

Using DMAS rule

=24\div(-2)*(3)+ 7

=-12*3+ 7

=-36+7

=-29

So, solving the expression 24\div (-2)(3) + 7 we get -29

Keywords: Solving the expression

Learn more about Solving the expression at:

  • brainly.com/question/5147732
  • brainly.com/question/2386054
  • brainly.com/question/11229113

#learnwithBrainly

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If the average yield of cucumber acre is 800 kg, with a variance 1600 kg, and that the amount of the cucumber follows the normal
lorasvet [3.4K]

Answer:

a

   The  percentage is

            P(x_1 <  X <  x_2 ) =   51.1 \%

b

   The probability is  P(Z >  2.5 ) =  0.0062097

Step-by-step explanation:

From the question we are told that

        The  population mean is  \mu =  800

        The  variance is  var(x) =  1600 \ kg

        The  range consider is  x_1 =  778 \ kg  \  x_2 =  834 \ kg

         The  value consider in second question is  x =  900 \ kg

Generally the standard deviation is mathematically represented as

        \sigma =  \sqrt{var (x)}

substituting value

        \sigma =  \sqrt{1600}

       \sigma = 40

The percentage of a cucumber give the crop amount between 778 and 834 kg  is mathematically represented as

       P(x_1 <  X <  x_2 ) =  P( \frac{x_1 -  \mu }{\sigma} <  \frac{X - \mu }{ \sigma } < \frac{x_2 - \mu }{\sigma }   )

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

So

      P(x_1 <  X <  x_2 ) =  P( \frac{778 -  800 }{40} < Z< \frac{834 - 800 }{40 }   )

      P(x_1 <  X <  x_2 ) =  P(z_2 < 0.85) -  P(z_1 <  -0.55)

From the z-table  the value for  P(z_1 <  0.85) =  0.80234

                                            and P(z_1 <  -0.55) =   0.29116  

So

             P(x_1 <  X <  x_2 ) =   0.80234 - 0.29116

             P(x_1 <  X <  x_2 ) =   0.51118

The  percentage is

            P(x_1 <  X <  x_2 ) =   51.1 \%

The probability of cucumber give the crop exceed 900 kg is mathematically represented as

             P(X > x ) =  P(\frac{X - \mu }{\sigma }  > \frac{x - \mu }{\sigma } )

substituting values

             P(X > x ) =  P( \frac{X - \mu }{\sigma }  >\frac{900 - 800 }{40 }   )

             P(X > x ) =  P(Z >2.5   )

From the z-table  the value for  P(Z >  2.5 ) =  0.0062097

 

7 0
3 years ago
To avoid collisions with invasive species of aliens, new imperial regulations allow only positive integer space jumps parallel t
Sunny_sXe [5.5K]

Answer:24,942,060

Step-by-step explanation:

(10,10,4) - (3,2,0) = 7,8,4

7+8+4=19

19!/(7!*8!*4!)= 24'942'060

7 0
2 years ago
How do I find the height of the triangle using pyhthagreon theorem?
Llana [10]

Answer:

<h2><em><u>Pythagorean </u></em><em><u>theorem </u></em><em><u>reads </u></em><em><u>as:</u></em></h2>

<h2><em><u>H²</u></em><em><u>=</u></em><em><u>P²</u></em><em><u>+</u></em><em><u>B</u></em><em><u>²</u></em></h2>

<h2><em><u>in </u></em><em><u>which </u></em><em><u>p </u></em><em><u>reads </u></em><em><u>as </u></em><em><u>perpendicular </u></em><em><u>so </u></em></h2>

<h2><em><u>P²</u></em><em><u>=</u></em><em><u>H²</u></em><em><u>-</u></em><em><u>B²</u></em></h2>

<em><u>p =  \sqrt{h {}^{2} - {b}^{2}  }</u></em>

7 0
3 years ago
In ΔHIJ, the measure of ∠J=90°, JH = 81 feet, and HI = 91 feet. Find the measure of ∠I to the nearest degree.
kakasveta [241]

Answer:

63°

Step-by-step explanation:

  • Sin0=\frac{81}{91}
  • x=sin^{-1}(81/91)\\\\
  • = 62.887
  • ≈ 63°

༻﹡﹡﹡﹡﹡﹡﹡༺

hope it helps...

have a great day!!

8 0
3 years ago
AT YOUR NEW JOB AT THE COFFEE
alukav5142 [94]

Answer:

106 : 84

Step-by-step explanation:

53 : 42 = 106 : 84

The ratio is already in lowest terms so found I an equivalent ratio by multiplying both terms by 2.

7 0
3 years ago
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