MATHEMATICS HIGH SCHOOL

Solve the equation
4(m + 3)= -32

Answers

Answer 1
Answer: The answer for this question is m= -11 
Answer 2
Answer: I hope this helps you

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Three years ago,Joe brought $750 worth of stock in the software company. Since then the value of his purchase has been increasing at the average rate of 12 1/5 % per year. How much is the stock worth now?

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I think the answer is 1,059.43

the sum of present ages of ria and abby is 48 years. today abby is 4 years older than shweta. the respective ratio of the present ages of ria and shweta is 4: 7. what was abby's age two years ago?

Answers

Answer:

30 years then.

Step-by-step explanation:

Let the present age of Ria be x and Abby be y, and of Sweta be z.

Then, according to the question,

  • x + y = 48 ..1

Today, Abby is 4 yrs older than Sweta,i.e.,

  • y = 4+z.(2)

Also, ratio of present ages of Ria:Sweta

  • x:z = 4:7
  • x/z = 4/7
  • 4z = 7x..(3)

Putting the value of y from eqn (2) to eqn 1,

  • x + 4 + z = 48
  • x + z = 44( eqn : 4)

From eqn (3),

  • 4z = 7x
  • x = 4z/7(eqn:5)

Putting the value of x in eqn (4),

  • 4z/7 + z = 44
  • 11z/7 = 44
  • z = 4*7 = 28

From eqn 5, putting the value of z in it,

  • x = 4*28/7
  • x = 4*4 = 16

Putting the value of x in eqn 1,

  • x+y = 48
  • y = 48 -16 =32

We have to find the age of Abby two years ago, i.e. 32-2 = 30 years old then back.

imagine an investigation in which 40 students were asked to determine their chronotype by choosing from among four chronotypes instead of three: morning person, night person, neither, or both. If there is no relationship between chronotype and birth month, about what fraction of the students would you expect to pick the chronotype that matches their birth month? why do you think this?

Answers

Step-by-step explanation:

A chronotype is a behavioral manifestation of an underlying circadian rhythms of the myriad physical processes.

The chronotype word may be defined as an individual's natural tendency to remain active mostly at certain times of the day. Some people remain active and alert in the early time of the day and some are alert and active in the late night.

The chronotypes are : Morning person, night person, neither/both.

It is assume that the birth month and year of a person influences his or her chronotype. But if birth month is not related to theses personality traits of a person, then it can be expected that nearly 1/3rd of the fraction of the students in class picks the chronotype which corresponds to their birth type.

How many subsets does the set {1, 2, 3} have? 6 7 8

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there are 8 sub sets

Answer: There are 8 subsets

Explanation: I got it right on my test.

the sides of a triangle have lengths of x, x+5, and 25. if the longest side is 25, which of the following values of x would make the right triangle?

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x^2+5x-300=0 \n \n \Delta =b^2-4ac =5^2 -4*1* (- 300)= 25+1200=1225 \n \nx_(1)=(-b- √(\Delta ) )/(2a)=(-5- √(1225))/(2 )=(-5-35)/(2)=-(-40)/(2)=-20 \n\n \ side \ not \ can \ also \ be \ negative

x_(2)=(-b+ √(\Delta ) )/(2a)=(-5+ √(1225))/(2 )=(-5+35)/(2)=-(30)/(2)=15\n \nAnsewr : \ x= 15




 

If you have 24 square pieces of wood, describe all the different ways you could make a rectangle by placing them side by side.

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