Answer: 21
Step-by-step explanation:
Answer:
a = 7
Step-by-step explanation:
3a - 6 = 8 + a
- Add 6 to both sides (3a = 14 + a)
- Subtract a from both sides (2a = 14)
- Divide both sides by 2 (a = 7)
Answer: A=70 square units
Step-by-step explanation:
The area of a triangle can be found using the formula 
Let 5=h and 7=b
Plug in the values and solve


However, since four of these triangles make up this rhombus, we can multiply the area of one of these triangles by four to find the area of the whole rhombus.


Sophia spent more time swimming. you have to convert the 3rds into 12ths 2/3x4=8/12 their sophia swam for longer
General equation of a cosine function:

, where a is the amplitude and

is the period.
Hence, a = 2 and

Thus, the equation is