1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Verizon [17]
2 years ago
13

Justin is using pairs of numbers from the set below to find sums differences products and quotients. Determine whether each stat

ement about justins calculations is true
Mathematics
1 answer:
Diano4ka-milaya [45]2 years ago
7 0
Justin is cracked at fortnite
You might be interested in
A rectangular poster is to contain 882 square inches of print. The margins at the top and bottom of the poster are to be 2 inche
Zinaida [17]

Answer:

L  =  23 in

h  = 46  in

Step-by-step explanation:

Let call  " x "  and  " y "  dimensions of the print area of the poster then:

882 = x*y  and   y = 882/x

We also know that dimensions of the poster is:

L  =  x + 2   in  and     h  =  y + 4 in

Therefore area of the poster is:

A(p)  = ( x + 2 ) * ( y + 4 )  And area as function of x is:

A(x)  =   ( x + 2 ) * ( 882/x + 4 )

A(x)  =  882 + 4*x + 1764 /x  + 8

Taking derivatives on both sides of the equation we have:

A´(x)  =  4  - 1764/x²

A´(x)  = 0      ⇒      4  - 1764/x² = 0      ⇒ 4*x² - 1764  =  0

x²  =  1764 / 4

x²  = 441

x  = 21 in      and    y  =  882/x         y  = 42

The second derivative  A´´(x)  is > 0  ( the second term changes its sign to +) there is a minimum for the function at the point      x = 21

As x   and  y are dimensions of the printing area of the poster, dimensions of the poster  are

L  = x  +  2   =   21  + 2  =  23 in   and

h = y  +  4   =   42  + 4  =  46  in

4 0
3 years ago
a touch of italy has a special offer on lunch pizza:$4.00 for each slide and they charge $2.00 to deliver.write an expression to
Alexxx [7]

Answer:

Step-by-step explanation:

4 x 2 = 8

there fore, it would take 8 $ to buy 5 slices excluding the delvry.

so, 8 x 2 = 16

16$ total

pls give me brainliest

3 0
2 years ago
Read 2 more answers
The liter is the basic unit of weight in the metirc system?
Ivanshal [37]
False. The liter is the basic unit of volume in the metric system. The basic unit of weight is the kilogram.
8 0
3 years ago
What is the value of 7 in 506,087
solong [7]
The value of 7 in that number is 7 because the 7 is in the ones place
7 0
2 years ago
Read 2 more answers
What is the price of a $1,000 face value bond if the quoted price is 102.1? $102.10 $1,021.00 $1,020.01 $1,002.10 $1,020.10?
dusya [7]
Given that the par value of the bond is $1000 and the quoted price is $102.1, then the price of the bond will be:
Price=(quoted price)
Price=102.1
Price=$102.1

Answer: $102.1

5 0
3 years ago
Other questions:
  • Which fraction is between 0 and 50/100
    15·2 answers
  • jessica put 4 tables together for the Pie day sale. Each table is 42 inches long. What is the total length of the tables express
    5·1 answer
  • Each day a runner trains for a 10km race. On the fisrt day she runs 1000m, and then increases the distance by 250m on each subse
    8·1 answer
  • I will give you brainlist. But only if your answer is valid
    15·2 answers
  • Liz has two gardens and wants to build a fence around each. She wants to buy all the fencing at one time. The diagram below sho
    9·2 answers
  • From MATH workbook 2B ​
    9·1 answer
  • Can somebody help me please
    7·2 answers
  • PLEASE HELP I WILL FAIL WITHOUT THIS
    15·1 answer
  • What is 457×(783×635)​
    5·2 answers
  • In a recent survey of 655 working americans ages 25-34, the average weekly amount spent on lunch was $43.29 with standard deviat
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!