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Nataly_w [17]
3 years ago
12

Quiz! 2x + 2 = 4 find x! ​

Mathematics
2 answers:
lilavasa [31]3 years ago
7 0
<h3>Solution</h3>
  • 2x + 2 = 4
  • 2x = 4 - 2
  • 2x = 2
  • x = 2 ÷ 2
  • x = 1
<h3>Proof</h3>
  • 2(1) + 2
  • = 2 + 2
  • = 4
MariettaO [177]3 years ago
3 0

Answer:

1

Step-by-step explanation:

2x=4-2

x=2/2

x=1

hope it helps

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Marta_Voda [28]

Answer:

-2.453

Step-by-step explanation:

sqrt(6) * sqrt(2) = 3.461

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-2.453

7 0
3 years ago
A triangle has side lengths of 12 millimeters, 17 millimeters, and 13 millimeters. Is this triangle equilateral?
nordsb [41]
No, this triangle is not equilateral. This triangle is scalene. All three sides are of different lengths, which is why it's scalene. In order to have an equilateral triangle, all three sides need to be the same length. 
7 0
3 years ago
Now that you know x, find KL.<br> 2X-3 X+7<br><br> Help me
Dafna11 [192]

Answer:

2x-3 is

-  \frac {62}{5}

if x-7

\frac{23}{10}

if all 2x-3 x+7

\frac{117}{10}

Step-by-step explanation:

ok that all

6 0
3 years ago
A customer purchased a jacket for $65. This was 80% of the original price.What was the original price?
Sergeu [11.5K]
The answer is $81.25. Because you take the equation x times .8 = 65 and solve for x.
8 0
4 years ago
Read 2 more answers
A limited-edition poster increases in value each year with an initial value of $18. After 1 year and an increase of 15% per year
Andru [333]

Answer:

y = 18 * 1.15^x

Step-by-step explanation:

Given

a = 18 --- initial

r =15\% -- rate

Value after a year = $20.70

Required

Expression to calculate its value after y years

This is calculated using:

y = ab^x

Where

b=1 +r

Substitute r =15\% in b=1 +r

b = 1 + 15\%

b = 1 + 0.15

b = 1.15

Substitute b = 1.15 and a = 18 in y = ab^x

y = 18 * 1.15^x

5 0
3 years ago
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