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zmey [24]
3 years ago
10

Solve for x. x + 5 = 2x

Mathematics
1 answer:
ahrayia [7]3 years ago
8 0
X + 5 = 2x
subtract x from both sides:-

x - x + 5 = 2x - x

5 = x

Solution is x = 5
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A fair coin is tossed twice what is the probability that it lands obtaining head and tail 1/8 1/16 1/4 1/2
ra1l [238]
Id say 1/2. Its tossed twice and could go either way.

3 0
4 years ago
Factor <br> X^4+12x^2+27=0
Softa [21]

Answer:

(x2+3)  •  (x2+9)

Step-by-step explanation:

Factoring x^{4} +12x^{2} +27=0

The first term is,  x^{4}  its coefficient is  1 .

The middle term is,  12x^{2}  its coefficient is  12 .

The last term, "the constant", is  +27  

Step-1 : Multiply the coefficient of the first term by the constant   1 • 27 = 27  

Step-2 : Find two factors of  27  whose sum equals the coefficient of the middle term, which is   12 .

     27    +    1    =    28  

     9    +    3    =    12    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -9  and  -3  

                    x4 + 9x2 + 3x2 + 27

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x2 • (x2+9)

             Add up the last 2 terms, pulling out common factors :

                   3 • (x2+9)

Step-5 : Add up the four terms of step 4 :

                   (x2+3)  •  (x2+9)

7 0
4 years ago
I am thinking of 2 digit numbers. they have the same digit, only reversed. the difference between the numbers is 18, while the s
love history [14]
The list of two-digit numbers whose digits add up to 10 would be:
19
28
37
46
55
64
73
82
91

Now the numbers have the same digits only reversed and the difference between the two numbers is 18 - the only pair that fits this description is 46 and 64, thus those are the two numbers
6 0
3 years ago
If you vertically stretch the absolute value parent function, f(x) = [xl, by a
fgiga [73]

Answer:

g(x) = 5|x|

Step-by-step explanation:

Given

f(x) = |x|

b =5 --- vertically stretch

Required

The new function

The rule for vertical stretch is:

g(x) = bf(x)

So, we have:

g(x) = 5 * |x|

g(x) = 5|x|

4 0
3 years ago
HELP PLEASE
koban [17]

Answer:

Step-by-step explanation:

7 0
3 years ago
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