Write the equation in standard form. 1 + 4 = 3 (3x + 3)
2 answers:
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For the last on you need to set up a proportion with the degrees. You know the arcs add to 360 and that small section is 120 so you set it equal to x over the entire area. X is the answer. The formulas are next to all answers
Answer:
1)
2)
Step-by-step explanation:
* Lets explain how to simplify a square root
1)
∵ ×
÷
∵ ×
∴ =
×
∵ =
×
×
∵ ×
= 3
∴ =
∴ ×
=
×
×
∵ ×
= 3
∵ 2 × 3 × 3 = 18
∴ ×
=
∵ =
×
×
∵ ×
= 7
∴ =
∵ ×
÷
=
÷
∵ ÷
= 1
∴ ×
÷
=
2)
∵ ×
÷
∵ =
×
×
∵ ×
= 5
∴ =
∴ ×
=
×
∵ ×
= 5
∴ ×
= 7 × 5 × 5 = 175
∵ =
×
×
∵ ×
= 3
∴ =
∴ ×
÷
=
175 ÷ =
∵ not in the simplest form because
the denominator has square root
∴ Multiply up and down by
∴ =
∴ =
∴ ×
÷
=