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shepuryov [24]
3 years ago
5

ALEKS math plz help. Ill give brainliest.

Mathematics
1 answer:
lina2011 [118]3 years ago
7 0
Explicit formula: a(n) = a(1) + d(n - 1)
a(1) is the first term and d is the common difference between the terms

Answer: a(n) = 27 + -5(n - 1) or a(n) = 32 - 5n
Right equation is more simplified
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B) State a valid formula for multiplying out (A + B)(A − B)
Diano4ka-milaya [45]

(A+B)(A-B) = A^2-B^2.

It's equality constant

8 0
3 years ago
A stack of logs has 32 logs on the bottom layer. Each subsequent layer has 6 fewer logs than the previous layer. If the top laye
Svetlanka [38]

Answer:  The total number of logs in the pile is 6.

Step-by-step explanation:  Given that a stack of logs has 32 logs on the bottom layer. Each subsequent layer has 6 fewer logs than the previous layer and the top layer has two​ logs.

We are to find the total number of logs in the pile.

Let n represents the total number of logs in the pile.

Since each subsequent layer has 6 fewer logs then the previous layer, so the number of logs in each layer will become an ARITHMETIC sequence with

first term, a = 32  and  common difference, d = -6.

We know that

the n-th term of an arithmetic sequence with first term a and common difference d is

a_n=a+(n-10)d.

Since there are n logs in the pile, so we get

a+(n-1)d=2\\\\\Rightarrow 32+(n-1)(-6)=2\\\\\Rightarrow 32-6n+6=2\\\\\Rightarrow 6n=36\\\\\Rightarrow n=6.

Thus, the total number of logs in the pile is 6.

6 0
3 years ago
Is (9, 90) a solution to the equation y = 10x?<br>yes​
Galina-37 [17]

Use the substitution method

(9,90) y= 10x

90= 10(9)

90= 90

Answer is yes

5 0
3 years ago
Read 2 more answers
Find the cost of tiling a rectangular plot of land 300m long and 150m wide at the rate of $6 per hundred square m​
Ugo [173]

Answer:

hope this helps you.................

3 0
2 years ago
2³- (3x5²)<br> PLEASE HELP 20 POINTS , also show ur work, thank u sm!
Alexxx [7]

Answer:

-67

Step-by-step explanation:

2^3-(3*5^2)

simplify exponents

8-3*25

8-75

=-67

3 0
3 years ago
Read 2 more answers
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