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Georgia [21]
2 years ago
12

Find the common ratior r for the geometric sequence and use r to find

Mathematics
2 answers:
kari74 [83]2 years ago
8 0
It happens to be 7 i think
Pani-rosa [81]2 years ago
8 0

Answer:

r = -3

Step-by-step explanation:

to find r divide the 2nd term by the first:

9/ -3 = -3

to check if this is the same ratio for each number divide it by the ratio to get the number before it:

-27/ -3 = 9

81/ -3 = 27

to find the next three terms multiply the last number by the ratio then repeat

(81)(-3) = -243

(-243)(-3) = 729

(729)(-3) = -2187

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Find the slope of each line passing through the given points using the slope formula. Describe the slope as positive,negative, z
kogti [31]

Answer:

0/13 This is a zero slope

Step-by-step explanation:

y2-y1/x2-x1

if the number in the numerator is a zero, it is a zero slope. if the zero is in the denominator it is undefined

trick for remembering zero slope vs undefined: if the zero is UNDEr it is UNDEfined- this makes more sense if you say it out loud ;)

7 0
2 years ago
What is 17.4% of 8350
rusak2 [61]

Answer:

<h2>1452.9 or 14529/10</h2>

Step-by-step explanation:

17.4% of 8350 equals <em><u>1452.9 or 14529/10</u></em>

<em><u></u></em>

<em>Hope this helps! <3</em>

3 0
2 years ago
Signal mistakenly produced 1,000 defective cell phones. the phones cost $60 each to produce. a salvage company will buy the defe
zhannawk [14.2K]
We are asked to solve for the incremental net income from reworking the phones.
Number of items = 1000
Production Cost = 1000*$60 = $60,000
Salvage value = 1000*$30 = $30,000
Rework Cost = 1000 *80 = $80,000
Price when resold = 1000 * $120 = $120,000

Incremental Net = $120,000 + $30,000 - $60,000 -$80,000
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The answer is $10,000. 

4 0
3 years ago
Read 2 more answers
Find the measure of DC if m
kupik [55]

Answer:

  • B. 132°

Step-by-step explanation:

<u>Find the measure of arc BD</u>

  • m∠A = 1/2(arc BC - arc BD)
  • 2*36° = 150° - arc BD
  • arc BD = 150° - 72° = 78°

<u>Find the measure of arc DC</u>

  • arc BD + arc BC + arc DC = 360°
  • arc DC = 360° - (150° + 78°) = 360° - 228° = 132°

Correct choice is B

7 0
2 years ago
The population of a city on April 15, 1915, was 47,175. During the period between March 1 and July 1, 1915, 1,325 new cases of s
Norma-Jean [14]

Answer:

the incidence rate is 28.47

Step-by-step explanation:

The computation of the monthly incident rate of active cases is shown below:

Incidence rate is

= 1325 ÷  (47175 - 642) × 1000

= (1325 ÷ 46533 ) ×  1000

= 28.47

hence, the incidence rate is 28.47

7 0
3 years ago
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