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4 years ago

Pls help due today plsssss

Mathematics

2 answers:

pickupchik [31]4 years ago

8 0

Answer:

it is 46 because you add 20+10=30 then 30+8=38 then you add 38+6=46

Mandarinka [93]4 years ago

3 0

Answer:

Step-by-step explanation:

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for a class trip, the teachers would like to have one adult for every 10 students. There are 190 students on the trip. How many

ryzh [129]

190 divided by 10 is 19 therefore 19 teachers should go on the trip. Hope this helps :)

5 0

3 years ago

Read 2 more answers

If the sum of the first 12 terms of a geometric series is 8190 and the common ratio is 2. Find the first term and the 20th term.

Reil [10]

The first term is 2 and the 20th term is 1048576 .

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

Here we have , If the sum of the first 12 terms of a geometric series is 8190 and the common ratio is 2. We need to Find the first term and the 20th term. Let's find out:

We know that Sum of a GP is :

⇒ $S_n = \frac{a(r^n-1)}{r-1}$

So ,Sum of first 12 terms is :

⇒ $S_1_2 = \frac{a(2^{12}-1)}{2-1}$

⇒ $8190=a(2^{12}-1)$

⇒ $\frac{8190}{4095}=a$

⇒ $a=2$

Now , nth term of a GP is

⇒ $a_n = ar^{n-1}$

So , 20th term is :

⇒ $a_2_0 = 2(2)^{20-1}$

⇒ $a_2_0 = (2)^{20}$

⇒ $a_2_0 = 1048576$

Therefore , the first term is 2 and the 20th term is 1048576 .

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4 years ago

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babymother [125]

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Step-by-step explanation:

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3 years ago

What do Christians and Muslims both believe are attributes of God?

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3 years ago

Compare using < >, or =. 7/9 4/9

WINSTONCH [101]

Answer:

7/9 >4/9

Step-by-step explanation:

7 is greater than 4 so 7/9 is greater than 4/9

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2 years ago