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omeli [17]
3 years ago
8

Paulo ran a marathon in about 1.56 × 10^4 s. A) Write Paulo's time in standard notation. B) Miguel ran a marathon in 4 h and 16

min. Who ran the race in the shorter amount of time? Show your work. (Question 2) Solve each given equation and show your work. Tell whether each equation has one solution, an Infinite number of solutions, or no solution. Explain your answers. A) 2x+4(x-1)=2+4x , (B) 25-x=15-(3x+10) , (C) 4x=2x+2x+5(x-x). (I posted a picture of question 3). ​

Mathematics
1 answer:
Kamila [148]3 years ago
4 0

Answer:

22222

Step-by-step explanation:

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Please answer this and show work
evablogger [386]
Ok so we know it took 4 hrs and 15 minutes, which is the same as 4.25 hrs so we divide 1114 by 4.25 which is 262.118. The average speed of the plane is 262 mph.

Then we just have to multiply 262 by 1.6 to get the speed in kph. That equals 419.2. That means the average speed was 419 kph. Hope that helps!
3 0
3 years ago
The average lateness for one of the top airline companies is 10 minutes. The variance of the lateness measure is calculated as 9
Soloha48 [4]

Answer:

The z score for the airplane arriving 13 minutes after arrival time is 0.33

Step-by-step explanation:

Using normal distribution,

The average lateness for one of the top airline companies is 10 minutes. So our mean, u = 10

The variance, s of the lateness measure is calculated as 9.

x =13 which stands for arrival time.

Using normal distribution,

z = (x - u)/s

z = (13 - 10)/9 = 3/9 = 0.33

The z score for the airplane arriving 13 minutes after arrival time is 0.33. The probability value of the z score can be found by looking at the Normal distribution table

6 0
3 years ago
Vocabulary Is a repeating decimal a rational number?
Elodia [21]

Answer:

yes

Step-by-step explanation:

repeating decimal. when a fraction is changed to a decimal and the remainder is not zero, a digit or a block of digits will eventually start to repeat. terminating or repeating decimal. since a rational number is a number that can be written as a fraction, every rational number can be expressed as either.

5 0
3 years ago
Find the volume of the solid obtained by rotating the region bounded by the given curves about the line x=−7
Margaret [11]

Answer:

X=23>45_78
X=2^3< /7= 8
Y= 8x^
comclucion :
coronita pliss

7 0
2 years ago
Use any model you choose to find the quotient. 4 divided by 1/3
Ronch [10]
12

The question is basically doing 4 x 3, which is equivalent to 12 :)
4 0
3 years ago
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