2 years ago

- 4(x + 3) = -12 – 4x

Mathematics

1 answer:

Elina [12.6K]2 years ago

5 0

Answer:

Interval Notation:

( − ∞ , ∞ )

Step-by-step explanation:

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c2?

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2 years ago

4.1 is ten times as much as____ 9.2 is ten times as much as___

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4.1 is 10 x 0.41

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If r = 4 and ^a8 = 100, what is the first term of the geometric sequence?

telo118 [61]

The first term of the geometric sequence is 0.0061

Step-by-step explanation:

The general form of geometric sequence is a, ar, ar²,ar³,.......

where,

a is the first term of the sequence.
r is the common ratio. Here, the common ratio r = 4.
The 8th term of the sequence is 100. Hence n = 8.

The formula to find the nth term of the geometric sequence is given by :

⇒ $n_{th} term = ar^{n-1}$

⇒ $8_{th}term = a\times4^{8-1}$

⇒ $100 = a \times 4^{7}$

⇒ $100 = a \times 16384$

⇒ $a = \frac{100}{16384}$

⇒ a = 0.0061

Therefore, the first term of the geometric sequence is 0.0061

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2 years ago

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Nikitich [7]

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2 years ago

If O is the center of the circle find x.

Over [174]

Answer:

x = 60°

Step-by-step explanation:

Angles on the circle formed by the same arc are congruent, then

∠ BDC = ∠ BAC = 50°

x = 180° - (70 + 50)° ← sum of angles in triangle = 180°

x = 180° - 120° = 60°

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2 years ago