PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics

2 answers:

aleksley [76]3 years ago

6 0

Answer: (D) 504

<u>Step-by-step explanation:</u>

The sum a geometric sequence is: $S_n=\dfrac{a_1(1-r^n)}{1-r}\ \text{where}\ a_1\ \text{is the first term and r is the ratio}$

In the given problem, $a_1=8$ and r = 2

$S_6=\dfrac{8(1-2^6)}{1-2}\\\\\\.\quad=\dfrac{8(1-64)}{-1}\\\\\\.\quad=-8(-63)\\\\.\quad=504$

KonstantinChe [14]3 years ago

3 0

If you interpret the question as is, the answer is in the thousands which is not listed. The last part of the question should read “the number of new cases doubled from those newly identified cases from the day prior.” It was poorly phrased lol
Day 1: 5
Day 2: 5+10
Day 3: 15+20
Day 4: 35+40
Day 5: 75+80
Day 6: 155+160
Which is 315 at the end of the 6th day

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sketch the graph of each function. Then State the domain, range and increasing, decreasing intervals. Part 3.

Eddi Din [679]

Answer:

19) Domain: - ∞ < x < ∞ 20) Domain: - ∞ < x < ∞

Range: - ∞ < y < ∞ Range: - ∞ < y < ∞

Increases throughout Decreases throughout

Step-by-step explanation:

Given the parent function " y = ∛x" we know that the first graph should have a vertical shift down 2 units, and a horizontal shift 4 units to the right. There is no vertical stretch since there is no coefficient. (Check first graph)

Domain: - ∞ < x < ∞

Range: - ∞ < y < ∞

Increases throughout

______________________________

For the second graph there should be a vertical shift down three units, a horizontal shift 1 unit to the left, and a vertical stretch by a factor of - 1. (Check second graph)

Domain: - ∞ < x < ∞

Range: - ∞ < y < ∞

Decreases throughout