Answer:
उत्तर:
गोलाको आयतन :4851 cm³
⁴/3 πr³=4851
r³=4851×3×7/(22*4)
r³=1157.625
r=![\sqrt[3]{1157.625}](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B1157.625%7D%20)
r=10.5
अब
गोलाको व्यास=2×r=10.5*2=21cm.
Answer:
Rectangle A is not a scale drawing.
Rectangle B is a scale drawing.
Step-by-step explanation:
A scale drawing involves ratios.
Rectangle A:
10cm is double the original 5cm giving us a 1 : 2 ratio.
However, 25cm is <em>not</em> double the original 20cm. This means that this rectangle is not to scale of the given rectangle.
Rectangle B:
10cm is double the original 5cm giving us a 1 : 2 ratio once again.
This time however, 40cm is double the original 20cm. This means that this rectangle is a scale drawing of the given rectangle.
~Hope this Helps!~
Answer:
35 dogs
Step-by-step explanation:
x ---> the number of dogs
y ---> the number of cats
The last week of January we have 20 cats and the ratio is the same
so
\frac{x}{y}=\frac{49}{28} ----> equation A
y=20 ---> equation B
substitute equation B in equation A
\frac{x}{20}=\frac{49}{28}
solve for x
x=\frac{49}{28}(20)=35 dogs
Answer:
The expression can be rewritten in 
form as following:
⇒ 
where 
Step-by-step explanation:
Given expression:
To rewrite the expression in the form of .
Solution:
By property of exponents :
<em>So, we can apply this property to the given expression.</em>
We have:
⇒
The above expression is in the form of where
Answer:
Yes
Step-by-step explanation:
The notes are in the proportion of 3:2 since
3/2x30/30=90/60
3/2x40/40=120/80
