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Rudik [331]
3 years ago
6

Express 4x^2-25 as a product of two binomials.

Mathematics
2 answers:
Ede4ka [16]3 years ago
8 0
4x^2-25=(2x)^2-5^2=(2x-5)(2x+5)
Andrei [34K]3 years ago
5 0

4x^2-25= (2x)^2-5^2=(2x-5)(2x+5)

Used: a^2-b^2=(a+b)(a-b)

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Use the given minimum and maximum data​ entries, and the number of​ classes, to find the class​ width, the lower class​ limits,
Gennadij [26K]

Using proportions and the information given, it is found that:

  • The class width is of 14.375.
  • The lower class limits are: {19, 33.375, 47.750, 62.125, 76.500, 90.875, 105.250, 119.625}.
  • The upper class limits are: {33.375, 47.750, 62.125, 76.500, 90.875, 105.250, 119.625, 134}.

-------------------------

  • Minimum value is 19.
  • Maximum value is of 134.
  • There are 8 classes.
  • The classes are all of equal width, thus the width is of:

W = \frac{134 - 19}{8} = 14.375

-------------------------

The intervals will be of:

19 - 33.375

33.375 - 47.750

47.750 - 62.125

62.125 - 76.500

76.500 - 90.875

90.875 - 105.250

105.250 - 119.625

119.625 - 134.

  • The lower class limits are: {19, 33.375, 47.750, 62.125, 76.500, 90.875, 105.250, 119.625}.
  • The upper class limits are: {33.375, 47.750, 62.125, 76.500, 90.875, 105.250, 119.625, 134}.

A similar problem is given at brainly.com/question/16631975

6 0
3 years ago
I need to know this ASAP
sashaice [31]

Answer:


Problem 1

x=2

y=3

Problem 2

x=-3

y=8


Goodluck :)

3 0
3 years ago
you deposit $6,700 in a money market account that pays an annual interest of 3.3% the interest is compounded quarterly how much
Rufina [12.5K]

so it is compounded 4 times in a year in 4 years we can take it as 16 terms

a=6700(1+3.3/100)^16

a=6700(1+33/1000)^16

a=6700(1000/1000 + 33/1000)^16

a=6700(1.033)^16

a=6700*1.681144887891022

a=6700*1.6811

a=11263.23

4 0
3 years ago
Find the value of the variable
WINSTONCH [101]
Which variable are you talking about? In this question x is 4 and y is 5.

Hope this helped!

Good Luck!
3 0
3 years ago
One cold day in January, the temperature re
elixir [45]

Answer:

-3-9

Step-by-step explanation:

3 0
2 years ago
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