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MArishka [77]
3 years ago
11

A(n) _____________ hypothesis is the statement that is being tested. It usually represents the status quo, and it is not rejecte

d unless there is convincing sample evidence that it is false.
Mathematics
1 answer:
Lorico [155]3 years ago
8 0

Answer: Null hypothesis

Step-by-step explanation: An initial claim or assertion about a population parameter that requires a form of hypothesis test before it can be accepted or rejected is known as the null hypothesis.

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In the book 365 Penguins, the family received a new penguin each day. They received their first penguin on January 1st and this
Eddi Din [679]

Answer:

181 penguins on the last day of June.

250th penguin on 7 September.

Step-by-step explanation:

We have been given that in the book 365 Penguins, the family received a new penguin each day. They received their first penguin on January 1st and this pattern continued throughout this non-leap year.  

First of all we need to find number of days in January to June.    

January has 31 days, February has 28 days (Not a leap year), March has 31 days, April has 30 days, May has 31 days and June has 30 days.

\text{Days from January to June}=31+28+31+30+31+30

\text{Days from January to June}=181

Since penguin family receives 1 penguin each day, so 181 penguins will be in 181 days.

Therefore, the penguin family will have 181 penguins on the last day of June.

Now, we need to find the day, which will be on 250th day.

We already know that 181st day would be 30th June.

We know that July and August each has 31 days, so we will add 62 days to 181 that is 181+62=243.

243rd day would be 31st August.

Now, we will add 7 days to 243 days to get 250th day.

Since next month to August is September, therefore, the family will receive 250th penguin on 7 September.

6 0
3 years ago
if Michael had four oranges and Timmy had 5 oranges and they combined them together how many oranges do they have in total
bija089 [108]
They have 9 because
5 + 4 = 9
4 0
3 years ago
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Plz help this is from Khan academy ty!!
Trava [24]

Answer:

The answer is A

7 0
3 years ago
As shown in the diagram of the right triangles below, Triangle: ABC ~ Triangle: DEF, AB = 7x, BC = 4, DE = 7, EF = x. What is th
charle [14.2K]

since triangles are similar

4/x = 7x/7

=》 4/x = x

=》x^2 = 4

=》 x = 2

for right triangles a^2 = b^2+c^2

DF^2 = 7^2+2^2 = 53

=》 DF = 7.28

perimeter of DEF = 7 +2+7.28 = 16.28

8 0
3 years ago
2) How is first aid provided to victims of disasters who are injured ?​
skelet666 [1.2K]

{\texttt{\huge{\purple{ANSWER :-}}}}

First aids could be provided to the victims of the disasters which consists mostly :

  • antibiotics
  • band aid
  • cotton
  • antiseptic cream
  • gauze, e.t.c.

The first Aid should be given according to the needs of the person.

5 0
4 years ago
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