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2 years ago

13

X over 8 = -5 . What is X?

2 answers:

valkas [14]2 years ago

5 0

Answer: 40

Step-by-step explanation:

lesya692 [45]2 years ago

5 0

X= -40

you would multiply each side by 8 to isolate x, which gives you -40 on the other side

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Find the first, fourth, and eighth terms of the sequence.<br><br> A(n) = −2 ∙ 2x − 1

Nutka1998 [239]

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3 years ago

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Step-by-step explanation:

3 0

3 years ago

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Given the sequence 4, 8, 16, 32, 64, ..., find the explicit formula.

Goshia [24]

Answer:

$\sf 2^{(n+1)}$

Step-by-step explanation:

Explicit formula is used to represent all the terms of the geometric sequence using a single formula.

$\sf \boxed{\bf t_n=ar^{(n-1)}}$

Here, a is the first term.

r is the common ratio.

r = second term ÷ first term

4, 8,16,32,64,.....

a = 4

r = 8 ÷4 = 2

$\sf t_n =4*2^{(n-1)}$

$\sf = 4*2^n * 2^{(-1)}\\\\ = 4*2^n*\dfrac{1}{2}\\\\ = 2*2^n$

$\sf = 2^{(n+1)}$

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2 years ago

A family drove 1 /5 of the total distance to the coast on the first day. They drove another2/5 of the distance on the second day

ser-zykov [4K]

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3 years ago

Ava's birthday cake is about 11 7/10 cm long. her candles stick up from the cake an additional 5 4/10 cm. what was the total hig

Virty [35]

Total height of the cake and the candles is 17.1 cm

Step-by-step explanation:

Step 1: Convert the mixed fractions into decimal expressions.

11 7/10 cm = 117/10 = 11.7 cm

5 4/10 cm = 54/10 = 5.4 cm

Step 2: Find total height of the cake and the candles

Total height = 11.7 + 5.4 = 17.1 cm

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3 years ago

Read 2 more answers