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Lynna [10]
3 years ago
6

Which of these expressions have positive values and which have negative values? Drag and drop each expression

Mathematics
1 answer:
marusya05 [52]3 years ago
4 0

Answer:

7-(-4)= Positive

-3+(-2)= Negative

5-8= Negative

-10 +12= Positive

Step-by-step explanation:

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13.5 is 15% of what number?<br> O A) 111.1<br> OB) 60<br> OC) 202.5<br> OD) 90
Nostrana [21]

Answer: 90

Step-by-step explanation:

15% of 90 = 13.5

4 0
3 years ago
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A rectangle is 6 inches longer than it is wide. The perimeter of the rectangle is 44 inches.Write and solve an equation for the
Nataly_w [17]

Answer:

Length is 14 in

Width is 8 in

Step-by-step explanation:

<u>Given:</u>

  • Length = l
  • Width = w
  • Perimeter = P = 44 in
<h3>Solution</h3>

<u>Equations as per given:</u>

  • l - w = 6
  • P= 2(l+w) = 44 ⇒ l +w = 22

<u>Adding up the two equations:</u>

  • l - w  + l +w = 6 + 22
  • 2l = 28
  • l = 28/2
  • l = 14 in

<u>Then finding the value of w:</u>

  • w = l -6
  • w = 14 - 6
  • w = 8 in

<u>Answer:</u> The length of the rectangle is 14 inches and width is 8 inches

5 0
3 years ago
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
Please Help! (10 POINTS)
Sliva [168]
The initial measure is:
 m1 = 28 ft
 The real measure must be:
 m2 = 14 ft
 The correct procedure to determine the scale factor is:
 k = m1 / m2&#10;&#10;k = 28/14
 Dividing both numbers between 14 we have:
 k = (28/14) / (14/14)
 Rewriting:
 k = 2/1&#10;&#10;k = 2
 Answer:
 
Zelie should have divided both numbers by 14.
5 0
3 years ago
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50 POINTS FOR THIS AND BRAINLY IF YOU GET IT RIGHT
sashaice [31]

Answer:

  • p/(p+q)  and r/(r+s)

Step-by-step explanation:

<em>Refer to attached</em>

<u>Comparing sales by the ratio of sold to all or</u>

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<u>Applying to our table:</u>

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  • Old labels: r/(r+s)

Correct answer option is the last one

7 0
3 years ago
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