Answer:
The equation is 3n + 13 = 40 The triplets are 9 years old
Step-by-step explanation:
Answer:
false
Step-by-step explanation:
Formula: c=2
r
Circumference= two times pi times radius
Answer:

Step-by-step explanation:
<u>Substitute g(-3) into the function:</u>

<u>Multiply:</u>
<u />
<u>Add:</u>
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Answer:
135 units²
Step-by-step explanation:
The area (A) of a parallelogram is calculated as
A = bh ( b is the base and h the perpendicular height )
To calculate h use Pythagoras' identity on the right triangle on the left
h² + 8² = 17²
h² + 64 = 289 ( subtract 64 from both sides )
h² = 225 ( take the square root of both sides )
h =
= 15 , thus
A = 9 × 15 = 135 units²