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motikmotik
2 years ago
7

Solve the equation 3x+4=20​

Mathematics
2 answers:
Slav-nsk [51]2 years ago
4 0

Answer:

x=8

Step-by-step explanation:

Ilya [14]2 years ago
3 0

Answer:

3x + 4 = 20

<u> _-_4_-_ 4_</u>

 <u>  _3x</u>_ =<u>_ 16_</u>

       3         3

Step-by-step explanation:

x = <u> 16_</u>

       3

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The lifespan, in years, of a certain computer is exponentially distributed. The probability that its lifespan exceeds four years
kompoz [17]

Answer:

The correct answer is "0.300993e^{-0.300993x}".

Step-by-step explanation:

According to the question,

⇒ P(x>4)=0.3

We know that,

⇒ P(X > x) = e^{(-\lambda\times x)}

⇒     e^{(-\lambda\times 4)} = 0.3

∵ \lambda = 0.300993

Now,

⇒ f(x) = \lambda e^{-\lambda x}

By putting the value, we get

           =0.300993e^{-0.300993x}

3 0
3 years ago
BRAINLIEST ANSWER TO FIRST ANSWERER <br><br> What is the value of x?
grigory [225]
It's really simple


if a+95=180 you solve for a

a+95=180
-95 -95
a=85

a triangle in total is 180 degrees


now that you know two of the angles find x is really easy

you add 60+85

you get 145

you then subtract 180-145

and get 35 as the answer


x=35

3 0
3 years ago
221/x=17 this is a fraction i am not sure about having to do with algebra please comment on how you figured this one out. please
Gnesinka [82]
Here are the steps to solve this equation:
221/x = 17
221 = 17x
17x = 221
17x ÷ 17 = 221 ÷ 17
x = 13
3 0
3 years ago
The tens digit of a two-digit number is twice the units digit. If the digits are reversed, the new number is 36 less than the or
Ludmilka [50]
Try this solution:
let the unknown two-digits number be 'xy'.
Then it is possible to write any two-digit number as 10x+y, where x - the tens digit and y - the unit digit.
Using the rule described above the phrase 'the tens digit of a number is twice the units digit' may be written as x=2y.
Using the same rule the phrase 'if the digits are reversed, the new number is 36 is less than the original number' may be written as (10x+y)-(10y+x)=36.
These two equations may be resolved as system of two equations:
\left \{ {{x=2y} \atop {10x+y-(10y+x)=36}} \right. \ =\ \textgreater \  \  \left \{ {{x=8} \atop {y=4}} \right.
Check: the original number is 84, the new number is 48; difference is 84-48=36.

answer: 84
7 0
3 years ago
Quadratic functions g and k are shown below.
mars1129 [50]
636 is the answer for this yup I’m back on my drip
6 0
3 years ago
Read 2 more answers
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