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
77julia77 [94]
3 years ago
11

Fishermen fishing for spiny lobster are allowed to keep only lobsters with a carapace length of 3.25 inches or longer. (Than car

apace length is measured from the rear edge of the eye socket to the rear edge of the body shell.) Any lobster smaller than 3.25 inches must be returned to the sea. Suppose that lobster carapace lengths have a distribution that is mound shaped and approximately symmetric with a mean of 5.50 inches and a standard deviation of 2.25 inches. Approximately what proportion of lobsters will have to be returned to the sea
Mathematics
1 answer:
ser-zykov [4K]3 years ago
4 0

Answer:

16%

Step-by-step explanation:

First we start by solving for the z score

We have the following information

x = 3.25

Standard deviation = sd = 2.25

Mean = 5.50

Z = (x - mean)/sd

z = 3.25 - 5.50/2 25

z = -1.00

If we look this up in the standard normal distribution table,

P(z<-1.00) = 0.1587

Which when approximated gives us

16%

Therefore approximately 16% of lobsters will have to be returned back to the sea.

You might be interested in
Use long division to find the quotient below.
Tems11 [23]

Answer:

Step-by-step explanation:

2

x

2

+

5

x

+

3

=

(

x

+

1

)

(

2

x

+

3

)

Explanation:

2

x

2

+

5

x

+

3

=

2

x

2

+

2

x

+

3

x

+

3

=

2

x

(

x

+

1

)

+

3

(

x

+

1

)

=

(

x

+

1

)

(

2

x

+

3

)

[Ans]

7 0
3 years ago
Which equation shows that 30 is 6 times as many as 5?
irina [24]

Answer:

30 divided by 5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Plan 1:<br> Plan 2:<br> Please help!!!!!!
djyliett [7]

Answer:

plan 1: y=3x+50

plan 2: y=10x

Step-by-step explanation:

for plan 1, since she would have to pay $3 per visit and x is the visits per month, than you would calculate the total cost per visits by 3x. and since there is a starting fee of $50, the total goes up from 50 and never below, therefore 50 is the y-intercept

plan 2, its the same thing as plan 1 but instead of $3 per visit it is $10 and there is no starting fee, so no y-intercept

7 0
2 years ago
Read 2 more answers
Which equation represents a line which is parallel to the line 7y - 4x = -14?
iVinArrow [24]
Answer: Any line with a slope of 4/7 and a y-intercept that is NOT -2

You should first turn the equation into y intercept form:
7y - 4x = -14; Add 4x from both sides
7y = 4x - 14; divide 7 from both sides
y = 4/7x - 2

Since you did not include choices, the answer will be the line with the slope 4/7 and without the y-intercept -2, because lines that are parallel will always have the same slope.

Example Answers: y = 4/7x + 2, y= 4/7x - 4
y = 4/7x + 10

4 0
2 years ago
45,609,549 rounded to the ten millions place
Gekata [30.6K]

50,000,000 because 45 is closest to 50,000,000.

5 0
2 years ago
Other questions:
  • A person made 4 blankets. each blanket used 180 inches of ribbon for the border. How many yards of ribbon did the person use for
    7·2 answers
  • WILL GIVE BRAINLIEST!!!!!!
    6·1 answer
  • Calculate the area of the shaded region
    12·1 answer
  • The temperature was -9°F in the morning and rose to a temperature of 17°F in the afternoon. What was the change in temperature f
    5·1 answer
  • Please help me with this !
    10·1 answer
  • What is .166 rounded up
    13·2 answers
  • What value of x makes the following equation true? (enter numbers only)<br> 2 (x – 4) + 2x = -6x – 2
    15·1 answer
  • Which equation represents a line which is perpendicular to the line y=5/4x-7
    13·1 answer
  • Principal = $2,400<br> Rate = 4%<br> Time = 30 months
    11·1 answer
  • The zoo had 20 successful roadrunner births. Unfortunately 15% of them died from heat exhaustion. How many survived?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!