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LenKa [72]
3 years ago
11

Solve |2x - 5| = 4. {x | x = 0.5 or x = 4.5} {x | 0.5 < x < 4.5} {x | x = -4.5 or x = 4.5} Solve |2x - 5| = 4.

Mathematics
1 answer:
stiks02 [169]3 years ago
3 0

Answer:

x = 4.5                            x = .5

Step-by-step explanation:

|2x - 5| = 4

The absolute value has two solutions one positive and one negative

2x-5 = 4              2x-5 = -4

Add 5 on each side

2x-5+5 = 4+5         2x-5+5 = -4+5

2x = 9                        2x =1

Divide by 2

2x/2 =9/2                  2x/2 = 1/2

x = 4.5                            x = .5

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Last year Golden State Warriors won 80% of the first 15 matches. Then they won the rest of the three matches. What percent of al
MrMuchimi

Answer:

83.33%

Step-by-step explanation:

We first need to evaluate 80% of the first 15 matches in order to determine the number of watches out of 15 which they won.

80 % of 15 = 80/100 * 15 = 12

12 matches out of the first 15 were won.

Since the team won the rest of the 3 remaining matches, the total number of matches won becomes;

12 + 3 = 15

The team thus won 15 matches out of a total of 15 + 3 =18 matches .

The percent of all matches won is ;

15/18 * 100 = 83.33%

3 0
3 years ago
John states that the product of two real numbers is a real number. Extending this to imaginary numbers John states that the prod
Wewaii [24]

___________________________________________________________

Answer:

no. i*i = -1

2i*3i=-6

now if they meant complex numbers the answer is still no

(2+4i)(2-4i) = 4-8i+8i-16 = -12

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7 0
3 years ago
Please help and thank you.
pashok25 [27]

Answer:

s(x) is t(x) ...

  • horizontally compressed by a factor of 2,
  • reflected across the y-axis, and
  • translated downward 5 units.

Domain and Range

  • t(x) has a domain of x ≤ 0, and a range of y ≥ 0.
  • s(x) has a domain of x ≥ 0, and a range of y ≥ -5.

Step-by-step explanation:

t(x) is the square root function reflected across the y-axis and compressed horizontally by a factor of 2. That is, in f(x) = √x, the x has been replaced by -2x.

s(x) has the function t(x) <em>reflected back across the y-axis</em> and compressed horizontally by another factor of 2. It is also <em>translated downward by 5 units</em>, so that its origin (vertex) is at (0, -5).

_____

The graph shows you the domain and range of s(x). The domain is all numbers to the right of x=0, including x=0. That is ...

  domain: x ≥ 0

The range is all numbers -5 or above:

  range: y ≥ -5

___

For t(x), the argument of the square root function must not be negative, which means the value of x cannot be positive.

  domain: x ≤ 0

For non-negative values of radicand, the t(x) function will have non-negative values. So, the range is ...

  range: y ≥ 0

_____

<em>Comment on solving problems like this</em>

Your graphing calculator can be your friend.

6 0
3 years ago
The sale amount is $98.75. What is 5% sales tax? What is 8% sales tax? and what is 6.5% sales tax?
amid [387]
To find the % sales tax, you simply need to find that percentage of the price.
5% of $98.75 is $4.94
98.75x0.05=4.94
8% of $98.75 is $7.90
98.75x0.08=7.90
6.5% of $98.75 is $6.42
98.75x0.065=6.42
Therefore, of the sale amount $98.75,
5% sales tax is $4.94
8% sales tax is $7.90
6.5% sales tax is $6.42
If you want to find the total price, add the sales tax to the sale price.
8 0
3 years ago
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Okay, so if each can has 3 balls, add up each can. he has two cans right now meaning that he has 6 balls. What is 6 + 3 + 3 = ?
6 0
3 years ago
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