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Igoryamba
3 years ago
14

Guys... I have come to a thought.... free 100 points...

Mathematics
2 answers:
vfiekz [6]3 years ago
7 0

Answer:

thx i needed the points really badly.

Step-by-step explanation:

valkas [14]3 years ago
4 0

Answer:

lol 50 but thx

Step-by-step explanation:

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Can someone help me and explain this Algebra 2?
Tju [1.3M]
Nth term of gp = a(1 - r^n)/(1 - r), where n∞ = 10, n = ∞, a = 2, r < 1
10 = 2(1 - r^∞)/(1 - r)
10 = 2/(1 - r)
1 - r = 2/10 = 1/5
r = 1 - 1/5 = 4/5
An infinite deometric series with a beginning value of 2 that converges to 10 has common ratio of 4/5.

The first four terms are: 2, 1.6, 1.28, 1.024
5 0
3 years ago
water goes over Niagara Falls at the rate of 180 million cubic feet every 1/2 hour. how much water goes over the Falls in 1 minu
Papessa [141]

Answer:

6×10⁶ cubic feet

30:1

Step-by-step explanation:

Water goes over Niagara Falls at a rate of 180 million cubic feet every \frac{1}{2} hours.

Now, 180 million cubic feet ≡ 18×10⁷ cubic feet

and \frac{1}{2} hours =30 minutes.

As the water is falling at a constant rate, hence, the unitary method of calculation can be applied.

Therefore, in 1 minute, the amount of water that goes over the falls will be  

18×10⁷/30 =6×10⁶ cubic feet.

So, the amount of water passing over the falls is reduced in the ratio 30:1. (Answer)

7 0
3 years ago
Find the surface area of the regular pyramid
Fofino [41]

Answer:

I do not know, but I do know the formula.

The formula is: 12pl+B where p represents the perimeter of the base, l the slant height and B the area of the base.

3 0
3 years ago
Read 2 more answers
Find the 66th term of the arithmetic sequence -28,-45, -62,-
Alexeev081 [22]

Answer:

<u>-1133</u>

Step-by-step explanation:

<u>Formula for nth term</u>

  • aₙ = a + (n - 1)d

<u>Finding d</u>

  • d = -45 - (-28)
  • d = -45 + 28
  • d = -17

<u>Solving for a₆₆</u>

  • a₆₆ = -28 + 65(-17)
  • a₆₆ = -28 - 1105
  • a₆₆ = <u>-1133</u>
6 0
2 years ago
Read 2 more answers
How do you solve - 16/21 - (- 13/15)
Dennis_Churaev [7]
\bf -\cfrac{16}{21}-\left( -\cfrac{13}{15} \right)\implies -\cfrac{16}{21}+\cfrac{13}{15}\impliedby \textit{we'll use the LCD of 105}&#10;\\\\\\&#10;\cfrac{(-16\cdot 5)~+~(13\cdot 7)}{105}\implies \cfrac{-80~+~91}{105}\implies \cfrac{+11}{105}\implies \cfrac{11}{105}

in case you wonder why we used 105 as LCD,  

21 = 3 * 7

15 = 3 * 5

the "3" is common to both denominators, so we "use it once" and our LCD is then 3 * 7 * 5.
7 0
3 years ago
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