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Marat540 [252]
3 years ago
7

Explain how using basic facts can help you find 10×20×30×40 mentally?

Mathematics
1 answer:
Katena32 [7]3 years ago
3 0
So all you have to do is take the first numbers of each multiple and multiply them. 
1 x 2 x 3 x 4 = 24 
Now you just add the 4 zeros to your answer. 
240,000 

Our answer even checks! 
10 x 20 x 30 x 40 = 240,000 

Good Luck! :)
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A. in terms of the number of marked elk, what is the relative frequency of male elk, female elk, adult elk, and baby elk? write
mash [69]

The relative frequency of the marked elks are:

  • Male Elk  = 7/30
  • Female Elk = 4/15
  • Adult Elk= 173/450
  • Baby Elk = 26/22

<h3>How to determine the relative frequency?</h3>

From the complete question, we have:

  • Male = 105
  • Female = 120
  • Adult =  173
  • Baby = 52
  • Total = 450

The relative frequency of each is then calculated as:

Male Elk = 105/450

Male Elk  = 7/30

Female Elk = 120/450

Female Elk = 4/15

Adult Elk= 173/450

Baby Elk = 52/450

Baby Elk = 26/22

<h3>The number of Elks in the park</h3>

Using the data in (a), we can conclude that:

There are 105 male, 120 female, 173 adult, and 26 baby in the park

Read more about frequency table at:

brainly.com/question/1094036

#SPJ1

4 0
1 year ago
Find BC. Round to the nearest tenth
SSSSS [86.1K]
<span>Using LAW OF SINES Round to the nearest tenth. 
Find BC: triangle is laying on it's side with the point to the right point(A).

B to C= 61 degrees
C to A= 23 cm
A to B= 12 degrees
--------------------
If I interpret this correctly:
Angle A = 61º

Angle C = 12º
--> B = 103º
-------------
Side b = 23 cm
--------------
BC is side a, opposite angle A
--------------
23/sin(103) = a/sin(61)
a = 23*sin(61)/sin(103)
a =~ 20.6 cm 

Hope this helped :)</span>
3 0
3 years ago
If corresponding angles are on parallel lines, then their measure is the same _____.
weqwewe [10]

Step-by-step explanation:

always .

plz mark my answer as brainlist.hope this will be helpful to you

6 0
2 years ago
Read 2 more answers
Simplify: 54x2 16 i need the answer now plzzz
igomit [66]

Answer:

Do you mean 54x2=6?

Step-by-step explanation:

???

3 0
3 years ago
If Greg ate 5/7 of a cake and bob ate 3/9 how much is left
laiz [17]
2 + 6 = 8. 2 is left. 6 is left.
8 0
3 years ago
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