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avanturin [10]
3 years ago
15

Find the squares of (y+3)​

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
5 0

Answer:

(y-3)^2=y^2+(2×-3×y)+9

=y^2-6y+9

Step-by-step explanation:

(a+b)^2=a^2+2ab+b^2

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A student had taken 7 tests and received scores of 88, 73, 81, 83, 79, 73, and 97.
ddd [48]

Answer:

Median 81

Mode 73, appeared 2 times

Range 24

Step-by-step explanation:

As performed by calculator.net:

Mean (Average) 82

Median 81

Range 24

Mode 73, appeared 2 times

Geometric Mean 81.633806378697

Largest 97

Smallest 73

Sum 574

Count 7

3 0
3 years ago
Please answer fast, it's important... Q) find the volume of cube whose dimensions are (x+7y), (7x-y) and (xy-5).​
Alona [7]

Answer:

Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2

Step-by-step explanation:

Given

Shape: Cube

Dimension: (x+7y), (7x-y) and (xy-5).​

Required

Determine the volume

The volume is calculated by multiplying the dimensions:

Volume = (x+7y) * (7x-y) * (xy-5)

Evaluate the first 2 brackets

Volume = [x(7x-y)+7y(7x-y)] * (xy-5)

Volume = [(7x^2-xy)+(49xy-7y^2)] * (xy-5)

Volume = [7x^2-xy+49xy-7y^2] * (xy-5)

Volume = [7x^2+48xy-7y^2] * (xy-5)

Open brackets

Volume = xy[7x^2+48xy-7y^2] -5[7x^2+48xy-7y^2]

Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2

8 0
3 years ago
A grocery store has 12 cartons of yogurt for sale of which 3 are rasberry
ziro4ka [17]

Answer:

um.... yes? is there  more to the question?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please help quicklyyy!!!
Fiesta28 [93]

Answer:

Its the 3 one

Step-by-step explanation:

7 0
3 years ago
There are 156 laptops and desktop computers in a lab. There are 8 more laptops than deskto
Karolina [17]

Answer:

It would be 70

Step-by-step explanation:

First step: Divide 156 by 2

156 / 2 =  78

Second Step: The half of 156 is 78. Now we have 78 laptops and desktops, and as we know the question says that  "there are 8 more laptops than desktops", the next step to follow is to subtract 8 from 78 (Desktops) and add 8 to the 78 (Laptops).

78 - 8 = 70 Desktops  

78 + 8 = 86 Laptops

Hope this helps :)

8 0
3 years ago
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