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Dennis_Churaev [7]
3 years ago
12

Please ignore my work and show step by step for number 9 please and thank you

Mathematics
1 answer:
Butoxors [25]3 years ago
5 0

( x + 3)( x  - 7) + (x + 8)(x + 3) = (x + 3)(x - 7 + x + 8) \\  = (x + 3)(2x + 1)

(3) is the answer?

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Since the Boston marathon began in 1897, the finish time has been incrementally decreasing. The mean finish time to date is 231
morpeh [17]

Answer:

hello your question lacks the required options but i will provide a general answer to your question

answer : The mean value  and the standard deviation would allow us use a Z-score

Step-by-step explanation:

mean value = 231 minutes

standard deviation ( std ) = 40 minutes

sample size = 40

The parameters that would be applicable while use Z-score are : The given mean value and the standard deviation

This is because the value of a z-score gives us an information on how far we are from the mean score i.e. number of standard deviations

+Zscore means that the score  is above the average value

-Zscore means that the score is below the average value

7 0
3 years ago
The graph of the function f(x)=|3x| is translated 4 units up.
siniylev [52]
Translating a graph upwards just means adding or subtracting a value from the initial function.

So to push a graph up, you just add (+) the number of units onto the original function.
7 0
3 years ago
Read 2 more answers
It is estimated that approximately one-half of all aluminum cans will be recycled each year. If a soft drink company produces 35
Harrizon [31]
350,000×0.52^(4)
=25,590.656
7 0
3 years ago
It took 12 men 5 hours to build an airstrip. Working at the same rate, how many additional men could have been hired in order fo
motikmotik

Answer:

B

Step-by-step explanation:

hello the question is if it took 12 men 5 hours to build an age is working at the same rate how many additional men could have been hired in order for the job to have taken 1 hour less ok so we have to find that how many extra may be required to complete the job for a strip 1 hour less than five hours that is 4 hours ok bye have to complete the airstrip in 4 hours and they have to find that how many experiment we have to required for that we will assume that let extra number of number of extra man bhi X show the number of men when we are finishing in it in 4 hours would be 12 + X ok

would be the number of men now and time required would be equal to 1 hour less than 5 hours that is 4 hours ok no from the given data we can say that one cares if strip x 12 men and fibres ok so all vacancy job correct so vacancy job per man are would be 1 divided by 12 in 25 this is the job or the amount of a strip that is completed when

one man works for one hour ok so this is the amount of the job that is done for men power and we have we have this number of men that are not want working and the number of hours that their working for so for one job we will need for one job would be best job per man per hour into number of men into number of hour ok and we have 1 equal to number of Doberman per Rs 1 by 2 11 25 and number of men we have already know that 12 + 6 is the number of men that we will require 12 + X number

forces were less than 5 that is 44 4312 so it would give us 12 + X / 3515 1 to 15 of this site it would give us 12 + X equal to 15 which implies X is equals to 15 - 12 and X is equals to 3 significant required 3 more men to complete the job in Porus dancer is 3 which is given is be in the question make you

6 0
1 year ago
35 juice cups and each juice cup holds 12 fluid ounces.<br> how many gallons is that?
weeeeeb [17]
You have to look it up, but there are are 128 fluid oz in one gallon.


Then find the amount of juice you have total (in fl oz) in the 35 cups

35 * 12 fl oz = 420 fl oz

Then divide by the number of fl oz in one gallon to find the number of gallons

420 fl oz / 128 fl oz = <span>3.28 gallons</span>


6 0
3 years ago
Read 2 more answers
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