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Readme [11.4K]
3 years ago
8

Twenty-one is 25% of what number?

Mathematics
2 answers:
choli [55]3 years ago
8 0

The answer is 84

Because 1/4 (25/100) of 84 would be 21

I hope this helps!!! :)

ivolga24 [154]3 years ago
5 0
The answer is 84 because 21 times 4 is 84 my answer is late someone answer it already lol
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Can someone help with this!
Sveta_85 [38]

In the given image, a_{23} is 5. The correct option is the first option 5

<h3>Matrix notation</h3>

From the question, we are to determine which entry in the given matrix represents a_{23}

NOTE: For any entry denoted as a_{mn}, it represents the entry in the <em>m</em>-th row and <em>n</em>-th column.

Thus,  

 a_{23} represents the entry in the 2nd row and 3rd column.

In the given image, the entry in the 2nd row and 3rd column is 5.

Hence, in the given image, a_{23} is 5. The correct option is the first option 5

Learn more on Matrix notation here: brainly.com/question/2382978

#SPJ1

5 0
2 years ago
A forest ranger can see for a distance of 12 miles from a firetower. Formulas Show calculator Select the best answer How many sq
BabaBlast [244]
That would be the area of a circle of radius 12 miles

= pi r^2 =  452.4  square miles to nearest tenth.
6 0
3 years ago
Cosxsinx-2cosx=0<br> I dont know how to solve this
jekas [21]
Factor out cosx: cosx(sinx-2)=0
cosx=0 or sinx-2=0
cosx=0 or sinx=2
the largest value of sinx is 1, sinx will never be 2, so cosx=0, x=π/2 or 3π/2 are the two answers. 
8 0
4 years ago
I need help with 18-19​
Svet_ta [14]

Answer:

18-19= -1  

Step-by-step explanation:

18-19=-1

Sweetheart, you cant subtract a smaller number from an bigger number or it will be a negitive number so the answer is -1

8 0
3 years ago
Read 2 more answers
Steve is m years old.his brother jack is n years older than steve, how old will jack be in 2 years.
Alexxandr [17]

(2 + n) + m

Step-by-step explanation:

Steve is m

Jack is n

old Wil be in 2 years

= (2+N) + m

4 0
2 years ago
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