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Fiesta28 [93]
3 years ago
13

here is a list of numbers. 7,12,16,20,27,40,56,64. a work out the difference between the two square numbers in the list. b work

out the difference between the two cube numbers in the list.
Mathematics
2 answers:
poizon [28]3 years ago
4 0

Answer:

see below

Step-by-step explanation:

7,12,16,20,27,40,56,64

The square numbers are 16 = 4^2   and 64 = 8^2

The difference is 64 - 16 =48

The cube numbers are 27 = 3^3 and 64 = 4^3

64 - 27 =37

Igoryamba3 years ago
4 0

Answer:

a. 48

b. 37

Step-by-step explanation:

7,12,16,20,27,40,56,64

Square numbers= 16=4², 64=8²

  • the difference= 64-16= 48

Cube numbers= 27=3³, 64=4³

  • the difference= 64-27= 37
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2 years ago
Past experience has indicated that the breaking strength of yarn used in manufacturing drapery material is normally distributed
vlabodo [156]

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95% two-sided confidence interval on the true mean breaking strength is (94.8cm, 99.2cm)

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\frac{1-0.95}{2} = \frac{0.05}{2} = 0.025

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7 0
3 years ago
Solve : <br> 20-9x=11<br> 4(2x+1)=8<br> 5(2x+5)=-15<br> 3(8x+1)=-21
laila [671]
<span>20-9x=11
-9x=11-20
-9x= -9
x= -9/(-9)
x=1


4(2x+1)=8
2x+1=8/4
2x+1=2
2x=2-1
2x=1
x=1/2
x=0.5


5(2x+5)=-15
2x+5= -15/5
2x+5= -3
2x= -3-5
2x= -8
x= -8/2
x=-4

3(8x+1)=-21
8x+1= -21/3
8x+1= -7
8x= -7-1
8x =-8
x= -8/8
x= -1
</span>
4 0
3 years ago
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