Mathematics, 02.10.2020 14:01 keke1871
The table shows the heights of 40 students in a class.
Height (h)
Frequency
in cm
120 <t< 124
7
124 <t< 128
8
128 <t< 132
13
132 <t< 136
9
136 <t< 140
3
a) Calculate an estimate for the mean height of the students.
b) Explain why your answer to part (a) is an estimate.
Answers: 1
Mathematics, 21.06.2019 14:30
F(x)= 1/x-4, g(x)=4x+1/x a. use composition to prove whether or not the functions are inverses of each other. b. express the domain of the compositions using interval notation.
Answers: 2
Mathematics, 21.06.2019 18:00
Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.
Answers: 3
Mathematics, 21.06.2019 19:00
Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?
Answers: 2
Mathematics, 21.06.2019 19:00
Simplify. β4x^2 (5x^4β3x^2+xβ2) β20x^6β12x^4+8x^3β8x^2 β20x^6+12x^4β4x^3+8x^2 β20x^8+12x^4β4x^2+8x β20x^6+12x^4+4x^3β8x^2
Answers: 1
The table shows the heights of 40 students in a class.
Height (h)
Frequency
in cm
12...
Frequency
in cm
12...
Biology, 17.04.2020 22:37
Mathematics, 17.04.2020 22:37
Social Studies, 17.04.2020 22:37
Physics, 17.04.2020 22:37
Mathematics, 17.04.2020 22:37
Computers and Technology, 17.04.2020 22:37
Computers and Technology, 17.04.2020 22:37
Mathematics, 17.04.2020 22:37
History, 17.04.2020 22:37