Answer:
10 cm.
Step-by-step explanation:
We'll begin by calculating the area of the small bubble. This can be obtained as follow:
Radius (r) = 5 cm
Area (A) =?
Since the bubble is circular in nature, we shall use the formula for area of circle to determine the area of the bubble. This is illustrated below:
A = πr²
A = π × 5²
A = 25π cm²
Next, we shall determine the total area of the small bubbles. This can be obtained as follow:
Area of 1 bubble = 25π cm²
Therefore,
Area of 4 bubbles = 4 × 25π cm²
Area of 4 bubbles = 100π cm²
Finally, we shall determine the radius of the large bubble. This can be obtained as follow:
Area of large bubble = total area of small bubbles = 100π cm²
Radius (r) =?
A = πr²
100π = πr²
100 = r²
Take the square root of both side
r = √100
r = 10 cm
Thus, the radius of the large bubble is 10 cm
2/5/9 solved will be 0.4 repeating as a decimal, & 4/9 as a fraction
Answer:
Step-by-step explanation:
Factor top and bottom.
The numerator is a difference of two squares, and the denominator is a quadratic.
= 
= 
If x does not equal -1 and does not equal 4, we can cancel the common factors in italics to give
= 
=
Answer:
Correct option is (A).
Step-by-step explanation:
BECAUSE,
# Supplementary means whose sums are 180°.
# 1 and 3; 2 and 4 are not supplementary.
#$# HOPE YOU UNDERSTAND #$#
#$¥ THANK YOU ¥$#
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Answer:
42.95×10=429.5
Step-by-step explanation:
He is wrong, he should move the point to the right
42.95×10=429.5
