2 years ago

First person to answer {15 x 17 x 45} + {76 x 54 gets crown

Mathematics

2 answers:

elena-14-01-66 [18.8K]2 years ago

5 0

Step-by-step explanation:

Hey.. Use a calc dude

Hoochie [10]2 years ago

5 0

It’s 8,829 hope I got it right thanks for points tho

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Klio2033 [76]

Answer:

a) $a_n=2(a_{n-1})$ , where $a_1=5$ .

b) $a_n=5(2)^{n-1}$

Step-by-step explanation:

The given sequence is

$5,10,20,40...$ .

The first term of the sequence is

$a_1=5$

The second term is $a_2=10$

The common ratio for this sequence can be determined using any two consecutive terms in the sequence.

Using the first two terms, the common ratio is

$r=\frac{a_2}{a_1}$

$\Rightarrow r=\frac{10}{5}=2$

a) The recursive rule is given by,

$a_n=r(a_{n-1})$

$a_n=2(a_{n-1})$ , where $a_1=5$ .

b) The explicit rule is given by $a_n=a_1r^{n-1}$

$\Rightarrow a_n=5(2)^{n-1}$

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2 years ago

first one: Juan plans to mix blue paint and red paint to create purple paint. The ratio of the number of gallons of blue paint t

Alenkinab [10]

Answer:

785

Step-by-step explanation:

test answer

7 0

1 year ago

If −20 is the 15th term in an arithmetic sequence with a common difference of −7, what is the first term in the sequence?

Sphinxa [80]

An=A1+(n-1)d
-20=A1+(15-1)x-7
-20=A1+14 x -7
-20=A1-98
+98 +98
-98+98=0
-20+98=78
A1=78

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2 years ago

Solve the following equation<br> 3x-4=16

lesya692 [45]

Answer:

x = 6 2/3

Step-by-step explanation:

3x-4=16

3x=16+4

3x=20

x=20/3

x= 6 2/3 or 6.66666666666

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1 year ago

Read 2 more answers

Between what two consecutive integers where does the Square Root of 115 lie?

goldenfox [79]

The square root of 115 is 10.72 which means the square root is between 10 and 11 which would make the answer A.

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2 years ago