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lutik1710 [3]
3 years ago
13

5x+12=-18 what is the value of x ?

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
7 0
X = - 6 :)
i calculated it
MA_775_DIABLO [31]3 years ago
6 0

Answer:

-6

Step-by-step explanation:

take 12 to the left side and u will get

5x=-30 hence x=-6

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The sum of two numbers is 4 and their difference is -10. What are the numbers
Anit [1.1K]

Answer:

-3 and 7

Step-by-step explanation:

4 -(-10) = 14

14÷2=7(largest no.)

7-10=-3(smallest no.)

7 0
3 years ago
I need help with question 4
icang [17]

Answer

b=-4

Step-by-step explanation:

(y1-y)=m (x1-x)

1-y=1/2 (10-x)

y=1/2x-4

4 0
3 years ago
What is the only solution of 2x2 + 8x = x2 – 16?
Irina18 [472]

Answer:

the only sulition is 900000000000000000000000000000000000ueuy91

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Suppose calls are arriving at a telephone exchange at an average rate of one per second, according to a Poisson arrival process.
antoniya [11.8K]

Answer:

Explanation has been given below

Step-by-step explanation:                    

a) inter arrival times are exponentially distributed with mean 1/n , where n = rate = 1/sec.                                                                              

  probability distribution function is F(t)=n*exp(-n*t).  

reference to any kth packet and the (k-1)th packet

the answer is = integration of F(t).dt with limits 0 to 2 = 1 - exp(-2*n) = 1 - exp(-2)  

b)  t=5 , P(q) = exp(-5)*(5)^q/factorial(q)  

probability of fourth call within t=5 seconds is =  

that is P(4)   P(5)   ......  = 1 - ( P(0)   P(1)   P(2)   P(3) ) ;  put the values and get the answer.  

c) number of calls/rate =  4/n = 4 seconds

5 0
3 years ago
Half of sarans wire is equal to 2/5 of daniel's. chris has 3 times as much as sarah. in all, their wire is 6 feet. how long is s
Pepsi [2]
You need to make a series of equations from what you are given first. I am going to use the first letter of each of the names to represent the length of that persons wire.
1/2s=2/5d
3c=s
s+d+c=6 ft

Okay. Now you can combine the first two equations knowing what s equals:
1/2(3c)=2/5d
d=15c/4

Now you have d=15c/4 and s=3c, so you can replace d and s in the third equation.

3c+15c/4+c=6

Then solve for c and plug it into the equation 3c=s to find the length of sarah's wire.
7 0
3 years ago
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