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
Reil [10]
2 years ago
13

2. The sum of two numbers is 30. Determine the two numbers if their product is a maximum.

Mathematics
1 answer:
SCORPION-xisa [38]2 years ago
5 0

Answer:

X+y=30

X=30-y

Z=yx

Z=y(30-y)

D/dy

z=30–2y

At max 30–2y=0

2y=30 Y=15

Therefore x=15

Step-by-step explanation:

You might be interested in
The quotient of a number 2, minus 9, is 14
rodikova [14]
I think your answer is going to be 23
6 0
3 years ago
A random sample of 11 nursing students from Group 1 resulted in a mean score of 41.3 with a standard deviation of 6.8. A random
Lina20 [59]

Answer:

At 1% significance level,  this difference is considered to be extremely statistically significant.

Step-by-step explanation:

 Group   Group One     Group Two  

Mean 41.300 54.800

SD 6.800 6.000

SEM 2.050 1.604

N 11      14      

H0: Mean of group I = Mean of group II

Ha: Mean of group I < mean of group II

(Left tailed test at 1% significance level)

  The mean of Group One minus Group Two equals -13.500

 standard error of difference = 2.563

 t = 5.2681

 df = 23

 p value= 0.00005

Since p < significance level, reject H0

6 0
2 years ago
Paul was thinking of a number. Paul adds 10, then divides by 2 to get an answer of -13. What was the original number?
frozen [14]

Answer:

I believe its -36

Step-by-step explanation:

-36+10=-26

-26/2= -13

3 0
2 years ago
Read 2 more answers
How do I add fractions​
vivado [14]

Step-by-step explanation:

1 Find common denominator (lower numbers)

2 add numerators(top numbers)

3 put the numerator over the denominator

ex 3/4+2/8

3x2=6,4x2=8

3/4=6/8

6/8+2/8=8/8 or 1

3 0
1 year ago
Read 2 more answers
Whats 27h divided by 3h in standard form
stira [4]

27h / 3h  =  (9 x3h) / (1x3h)  =<em>  9 </em><span>  </span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • -232-(-508)<br><br> HELP !!!!!!!!
    14·2 answers
  • Dimitri rode his bike 32 miles yesterday. He rode 12 4/5 miles before lunch and the rest of the distance after lunch. How far di
    7·2 answers
  • Theo fills a large box with boxes of staples. The volume of each box of staples is 120 cu cm. Estimate the volume of the large b
    7·1 answer
  • Your English teacher has decided to randomly assign poems for the class to read. The syllabus includes 2 poems by Shakespeare, 3
    7·1 answer
  • Solve 1/3(x-15)+2x=16
    9·1 answer
  • In the drawer you have 8 black socks and 5 yellow socks, if you pick 2 socks what is the probability that pick out a black sock
    11·1 answer
  • -5 (4 + x) Need help
    14·2 answers
  • Anyone know? this answer
    10·1 answer
  • Determina el resultado de la siguiente operación -2 -7 -9
    15·1 answer
  • The likelihood that a patient with a heart attack dies of the attack is 0.04 (i.e., 4 of 100 die of the attack). Suppose we have
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!