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Cloud [144]
3 years ago
14

Help plzzzSolution set of 25x2 – 1 = 0 is ____________.

Mathematics
1 answer:
kari74 [83]3 years ago
8 0

Answer:

x = 1/5 ,  and   x = - 1/5

Step-by-step explanation:

25x² – 1 = 0

5²x² - 1² = 0

(5x - 1)(5x + 1) = 0

5x -1 = 0,  5x + 1 = 0

x = 1/5 ,     x = - 1/5

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How to multiply fractions with a mixed number?
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So Multiple
7/2*1/2
Refine the fractions
7/2*2
Multiple the numbers 2*2=4 to get
7/4
and that equals 1, 3/4
4 0
3 years ago
50-10x=20 what is the value of x in this problem
Andrew [12]
So what I did was I wrote down the problem 50 - 10x = 20.

The first step I did was take 50 and subtract it from both sides: 50 - 10x = 20
                                                                                                   -50            -50
After that i cross out the so 50's and take 20 and subtract it to 50 which gave me -30. So when you write this down you rewrite it as: -10x = -30

Last step: take the -10 and divide it by both sides the cross out the two -10's cause it's going to be written as -30/-10 which would give you x = 3. So there is your answer, hope this helps. :)

~Shadow


7 0
3 years ago
Please answer asap...
Anon25 [30]

Answer:

The answer is B - 288

To get this answer all you need to do is

First, subtract 316 - 28 to get your answer :)

Hope this helps!

-sofia~

7 0
4 years ago
Read 2 more answers
30.) Patel bought a model rocket kit from a catalog. The price of the kit was $124.95. The
Nastasia [14]

Answer:

10 to afford it

Step-by-step explanation:

3 0
3 years ago
In March 2007​, the U.S. unemployment rate was 4.4 percent. In August 2008​, the unemployment rate was 6.1 percent. Predict what
Luba_88 [7]

Answer:

Increased.

Step-by-step explanation:

In March 2007, the unemployment rate was 4.4 percent. In August 2008 was 6.1 percent. We need to remember that the unemployment rate equals the number of unemployed people divided by the people in the labor force.

Now, if we consider that the labor force remained constant during this period of time (according to the problem) then this would mean that the number of unemployed people actually increased during this period of 17 months.

4 0
3 years ago
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