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
neonofarm [45]
3 years ago
14

There are many penguins on a hill. 53 penguins waddled off the hill. Now 21 penguins remain on the hill. How many penguins were

on the hill to start?
74 penguins

72 penguins

32 penguins

34 penguins
Mathematics
2 answers:
qaws [65]3 years ago
8 0

Answer:

74 Penguins

Step-by-step explanation:

1. 53+21

2. =74

Penguins are my favorite animal. What's yours?

Maurinko [17]3 years ago
7 0
There were 74 penguins to start
You might be interested in
The diameter of a circle is 16 cm. Find its area in terms of Pi
babymother [125]

Answer:

A= 201.06

Step-by-step explanation:

A=πr^2

d=2r

Input the information into those formulas. Im honestly not sure if thats the right answer but its better than nothing.

6 0
3 years ago
Suppose that the cost of drilling x feet for an oil well is C=f(x) dollars. a) What are the units of f'(x)? b) In practical term
antiseptic1488 [7]
A. The term "units" refers to the measurements in the original question or problem. When looking at the question, the units we are measuring are dollars/feet. 
B. In this case, the f'(x) means we are looking for the cost (in dollars) to drill the next foot down. 
C. Since the cost increases the more feet we drill down, the sign of f'(x) is positive. 
6 0
3 years ago
a business analyst makes 20$ an hour for the first 42 hours he works during a week and 28$ an hour for each worked over 42 hours
sashaice [31]
Y=(20 × 42) + [28 × (x-42)]
8 0
3 years ago
Read 2 more answers
What is 28196−−−√ written in simplified radical form?
kirill [66]

Answer:

167.9166459

Step-by-step explanation:

6 0
3 years ago
1.
Evgen [1.6K]

Answer:

Null hypothesis H_0; \mu=5

Alternative hypothesis H_a; \mu\neq 5

Step-by-step explanation:

Consider the provided information.

The shower by an adult is 5 minutes.

The mean amount of time that college students spend in the shower is significantly different from 5 minutes. In a sample of 15 students, he found the average time was 4.29 minutes and the standard deviation was 0.75 minutes.

We need to determine the appropriate null and alternative hypotheses.

A null hypothesis is there is no statistical significance between the two variables.

An alternative hypothesis is there is a statistically significant relationship between two variables.

Therefore the required null and alternative hypothesis are:

Null hypothesis H_0; \mu=5

Alternative hypothesis H_a; \mu\neq 5

3 0
3 years ago
Other questions:
  • Davis can read 4/5 of a page in one minute. How many pages can he read in 4 1/2 minutes?
    12·1 answer
  • In a randomly generated list of numbers from 0 to 4, the chances that each number can occur is 1/5
    14·2 answers
  • a man invests a total of 5000 in a bank account that yields 5% interest compound monthly. how much will it be worth after 6 year
    10·1 answer
  • What is the common difference or common ratio for the sequence: 27, 9, 3, 1, 1/3, ...
    10·1 answer
  • -6x-10=20<br><br> Show me the steps.
    12·1 answer
  • Find the average (mean) of the following test scores<br> 82,92,47,78,80
    12·2 answers
  • answer the question i will mark you brainliest. komal has 473 rupees .Muneeb has 273 rupees.How many more rupees does Komal have
    10·2 answers
  • A textbook store sold a combined total of 478 biology and history textbooks in a week. The number of biology textbooks sold was
    6·1 answer
  • Answer all 4 for braininess
    5·2 answers
  • How do you calculate tan^-1 (10/53)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!