The radius of the circular top is 4. 75
<h3>How to determine the value</h3>
The formula for surface area of a rectangle is given as;
Surface area = 2πrh
Given that;
- surface area = 388cm²
- height is 13cm
- radius is unknown
Let's substitute the values
388 = 2 × 3. 142 × 13r
388 = 81. 64r
Make 'r' the subject
r = 388/ 81. 64
r = 4. 75
Thus, the radius of the circular top is 4. 75
Learn more about a rectangle here:
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Remember that a^x = b can be rewritten as logₐ b = x
So 10^x = 97 is just:
log₁₀97 = x
or simply
x = log 97
12.5 - 5.3 = 7.2 gallons
7.2 gallons x $1.30 = $9.36
$9.36 is your answer
Answer:
The correct options are (1), (3) and (5).
Step-by-step explanation:
The two triangles are shown below.
The measure of ∠F corresponds to ∠F'.
The distance between the points D and origin is of 9 units.
And the distance between the points D' and origin is 3 units.
Thus, the distance from point D' to the origin is One-third the distance of point D to the origin.
Check for similarity:

Thus, the △DEF is similar to △D'E'F'.
Thus, the correct options are (1), (3) and (5).