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8090 [49]
3 years ago
9

Solve the equation: .69x+4.32=.46x+3.4 please show work or explain how to do it.

Mathematics
2 answers:
Andrews [41]3 years ago
8 0
.69x+4.3=.46x+3.4
-.46x -.46x
.23x+4.3=3.4
-4.3 -4.3
.23x= -.9
divide by .23x
.-9/.23x = about -3.9
so x= about -3.9
i think? i’m not sure
defon3 years ago
6 0
0.69x+4.32=0.46x+3.4
              -3.4                   -3.4  
____________________
0.69x+0.92=0.46x
-0.69x           -0.69x
______________
0.92=-0.23
multiply by -100/23   multiply by -100/23
x=-4
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Answer: 10

Step-by-step explanation:

Vieta's formulas :

5 - 3i + 5 + 3i = b ⇒ b =10

Now, we have the equation:

x² -10x + 34 = 0

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First, we simplify this to 3/4-j/12=0. 4/4=1 so we do, -j=-51/4*-1. Therefore, the answer is j=51/4. Hoped I helped. :)
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Which numbers should replace the question marks?
slava [35]

The first missing number in the sequence is 35, and the last missing number is 77.

<h3>Next number of the given sequence</h3>

The two missing numbers in the given sequence is calculated as follows;

= ?    49     63    ?

The given sequence is factor 7 which increases by 2

= 7 x 5      7 x 7       7 x 9     7 x 11

= 35         49          63          77

Thus, the first missing number in the sequence is 35, and the last missing number is 77.

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7 0
2 years ago
One number is 2 more than another. The difference between their squares is 20. What are the numbers?
ss7ja [257]

Answer:

let x=one number =

x-2= another number

x²- (x-2)²=20

x²-x²-4x+4=20

-4x=20-4

-4x=16

x=16/-4

x=-4

one number is -4

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4 0
3 years ago
2. Which algebraic expression represents the following phrase?
oksian1 [2.3K]

The algebraic expression which represents the square of the difference of s and 6 is (s - 6)²

Step-by-step explanation:

Let us represent some words by mathematics expressions

  • Square a number ⇒ x²
  • Square the sum of two numbers ⇒ (x + y)²
  • Sum of the squares of two numbers ⇒ x² + y²
  • Square of difference of two numbers (x - y)²
  • The difference of square two numbers x² - y²

∵ The expression is the square of the difference of s and 6

- That means find the difference between s and 6 at first,

   then square the difference

∵ The difference of s and 6 = s - 6

- Square this difference means but the difference in a bracket

   and then square the bracket

∴ The square of the difference = (s - 6)²

The algebraic expression which represents the square of the difference of s and 6 is (s - 6)²

Learn more:

You can learn more about the algebraic expressions in brainly.com/question/10771256

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3 0
2 years ago
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