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Nutka1998 [239]
3 years ago
7

Find the 20th term of the arithmetic sequence 15, 9, 3, -3, ...

Mathematics
1 answer:
RUDIKE [14]3 years ago
4 0

The 20th term is -106

15,9,3,-3,-9,-15,-21,-28,-35,-41,-46 (10) -6 x 10 = -60

-60 + -46

-106

You're just subtracting by 6.

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In Ryan coorporation the first shift produced 5 1/2 times as many lightbulbs as the second shift. if the total lightul.bs produc
dimaraw [331]

Answer:

  • first shift: 13,750 bulbs
  • second shift: 2500 bulbs

Step-by-step explanation:

The production ratio is ...

  shift 1 : shift 2 = 5.5 : 1 = 11 : 2

so, the production on shift 1 as a ratio to the total is ...

  shift 1 : total = 11 : (11+2) = 11 : 13

The first shift produced ...

  (11/13)(16,250 bulbs) = 13,750 bulbs . . . . first shift

and the second shift produced ...

  (2/13)(16,250 bulbs) = 2,500 bulbs . . . . second shift

_____

Of course, once you have one of the numbers, you can also find the other by using the 5.5 factor or by subtracting from total production.

3 0
3 years ago
3d - 4, where d = 5 .
Crank
The correct answer would be-11
8 0
2 years ago
Read 2 more answers
What is -5 to the power of -2
oksano4ka [1.4K]
The answer to this is  -.04 because  
4 0
3 years ago
Read 2 more answers
Need help ASAP...Find consecutive integers between which the square root lies. 21√
Arte-miy333 [17]

Answer:

4 and 5

Step-by-step explanation:

We know that.

√16 < √21 <√25

⇒4 < √21 < 5

Hence  √ 21   lies between  4  and  5

6 0
3 years ago
Read 2 more answers
Select all the correct answers.
aliina [53]

Answer:

The inequality x3 − 14x2 + 48x − 1,680 ≤ 0 can be used to find pool’s length.

⇒The water level in the pool cannot exceed 14 feet.

Step-by-step explanation:

The question is on inequalities

Given;

Length= x ft

depth= x-6  ft

Width= x-8 ft

volume ≤ 1680 ft³

Forming the inequality to find length x of the pool

Volume= base area × depth

base area × depth ≤ volume

x(x-8) × (x-6) = 1680

(x²-8x )(x-6) = 1680

x(x²-8x) -6 (x²-8x)=1680

x³-8x²-6x²+48x=1680

x³-14x²+48x=1680

x³-14x²+48x-1680 ≤ 0

⇒The water level in the pool cannot exceed 14 feet...why?

taking the value of x at maximum to be 17 according to the graph, then maximum depth will be;

d=x-6 = 17-6=11 ft

⇒11 ft is less than 14ft

8 0
3 years ago
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