If the radius of a circle is 12cm, then the diameter is 6cm. True or false

Mathematics

1 answer:

melomori [17]3 years ago

6 0

Answer:

False.

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Geometry

Radius: r
Diameter: d = 2r

Step-by-step explanation:

Step 1: Define

Radius = 12 cm

Step 2: Find diameter

Substitute: d = 2(12 cm)
Multiply: d = 24 cm

∴ The statement is false and should be 24 cm as the diameter.

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21. In 4 + In(4x - 15) = In(5x + 19)

Alexxx [7]

Answer:

$x=-30;\quad \:I\ne \:0$

Step-by-step explanation:

$In\cdot \:4+In\left(4x-15\right)=In\left(5x+19\right)$

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