the total cost in dollars to order X units of a certain product is modeled by c( x) equals 5x squared + 320

Solved

Show answers

Ответ:

shippo

19.04.2021

Mathematics

The sum of all the measurements is just the average times the number. $\bar x = \frac{1}{n} \sum_{i=1}^n x_i$ $\sum_{i=1}^n x_i = n \bar x$ so if the average of all 92 is 7 the sum of those is $92 \times 7$ the average of the last two is 7.2 so their sum is $2 \times 7.2$ that means the sum of the first 90 is $92 \times 7 - 2 \times 7.2$ so the average of the first 90 is $\dfrac{92 \times 7 - 2 \times 7.2}{90} = 6.99556$ cm

0,0(0 оценок)

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.

Ask your question

More tips

S Style and Beauty How to Get Rid of Under Eye Bruises?...
F Food and Cooking Is Bacon Good for You?...
S Style and Beauty Discover the Art of Nail Design: How Do You Paint Your Nails?...
P Philosophy How to Develop Extrasensory Abilities?...
O Other Everything You Need to Know About Kudyabliks...
C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
C Computers and Internet How to Choose a Monitor?...
H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...

Answers on questions: Mathematics

M Mathematics Which statements about quadrilaterals are true? choose all answers that are correct. a. a square is always also a parallelogram. b. a parallelogram is always also a rectangle....
M Mathematics -2(11 – 12:) = -4(1 – 62)...
M Mathematics Which equation can be used to find the value of b if side a measures 8.7 cm?...
M Mathematics Form the intersection for the following sets. m = { } n = {6, 7, 8, 9, 10} m ∩ n = {0, 6, 7, 8, 9, 10} {∅, 6, 7, 8, 9, 10} {6, 7, 8, 9, 10} { }...
E English Explaining an Empirical and Molecular Formula Name __________________ Question: A compound contains 58.8% carbon, 9.8% hydrogen, and 31.4% oxygen. If the molar mass is 102gams,...
M Mathematics What is the area of the kite? A kite has a height of 10 meters and a base of 8 meters....

Ask an AI advisor a question

I want advice