3 years ago

What is an algebraic expression for "2 less than the product of 3 and a number x"? *

Mathematics

1 answer:

lys-0071 [83]3 years ago

4 0

Answer:

3x-2

Step-by-step explanation:

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Find an expression which represents the sum of (-8x+7y)(−8x+7y) and (2x-2y)(2x−2y) in simplest terms.

Yakvenalex [24]

Answer:

(-8x+7y)(−8x+7y)+(2x-2y)(2x−2y)= simplified - 68x^2+53y^2−120xy

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Step-by-step explanation:

3 0

2 years ago

David has twice as many cousins as Becky.

Sonja [21]

Answer:

24 cugini

Step-by-step explanation:

6x2=12

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3 years ago

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What is the median of the following string of values?<br>16, 95, 3, 37.97. 13, 27.42, 64, 14

liubo4ka [24]

Answer:

21.71

Step-by-step explanation:

1) you need to order then by the size

3, 13, 14, 16, 27.42, 37.97 ,64, 95

2) if there is an odd amount of numbers then the median would be the center term. but if it an even number then you add the two middle terms together and divide them by 2.

16+27.42= 43.42

43.42 divided by 2=21.71

Hope this helped

4 0

3 years ago

LB. Johnson middle school

Wewaii [24]

Answer:

What is this????

5 0

3 years ago

I don't understand this I have spent many points on this same question so this time I will be giving brainliest for the first co

Marrrta [24]

Given:

$|3+4 i|+|3-4 i|+|-3+4 i|+|-3-4 i|$

Solution:

Complex formula:

$|a+b i|=\sqrt{(a+b i)(a-b i)}=\sqrt{a^{2}+b^{2}}$

Let us simplify one by one.

$|3+4 i|=\sqrt{3^{2}+4^{2}}$

$=\sqrt{25}$

|3 + 4i| = 5

$|3-4 i|=\sqrt{3^{2}+(-4)^{2}}$

$=\sqrt{25}$

|3 - 4i| = 5

$|-3+4 i|=\sqrt{(-3)^{2}+4^{2}}$

$=\sqrt{25}$

|-3 + 4i| = 5

$|-3-4 i|=\sqrt{(-3)^{2}+(-4)^{2}}$

$=\sqrt{25}$

|-3 - 4i| = 5

Substitute these in the given expression:

$|3+4 i|+|3-4 i|+|-3+4 i|+|-3-4 i|=5+5+5+5$

$=20$

The solution of the expression is 20.

8 0

2 years ago