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natka813 [3]
3 years ago
10

Pls help ASPAPAPPAPA!!!!!

Mathematics
1 answer:
Alenkasestr [34]3 years ago
5 0

Answer:

A. Rational

Step-by-step explanation:

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Andy purchased a pair of shoes for $40. They had been discounted 25%. What was the original price of the shoes
natali 33 [55]

Answer:160


Step-by-step explanation:first I did 40*100=4000 then I divide by 25 so I got 160


4 0
3 years ago
What is the nth term of quadratic sequence 4 7 12 19 28
Anni [7]
We find the first differences between terms:
7-4=3; 12-7=5; 19-12=7; 28-19=9.
Since these are different, this is not linear.
We now find the second differences:
5-3=2; 7-5=2; 9-7=2. Then:

Since these are the same, this sequence is quadratic.
We use (1/2a)n², where a is the second difference:
(1/2*2)n²=1n².

We now use the term number of each term for n:
4 is the 1st term; 1*1²=1.
7 is the 2nd term; 1*2²=4.
12 is the 3rd term; 1*3²=9.
19 is the 4th term; 1*4²=16.
28 is the 5th term: 1*5²=25.

Now we find the difference between the actual terms of the sequence and the numbers we just found:

4-1=3; 7-4=3; 12-9=3; 19-16=3; 28-25=3.

Since this is constant, the sequence is in the form (1/2a)n²+d;
in our case, 1n²+d, and since d=3, 1n²+3.
The correct answer is n²+3
7 0
3 years ago
Help me I want good grades i
Anna71 [15]
The second one the unit rate is 2.05 i think
5 0
3 years ago
Evaluate the expression.<br><br> (1.5)2(1.5)<br> −2⋅(1.5)4
aleksklad [387]
Is this (1.5)2(1.5) / -2(1.5)4?  or is it (1.5)2(1.5) - 2(1.5)4?

First option:
4.5/-12 = -0.375

Second option
4.5-12 = -7.5
8 0
3 years ago
A newspaper van made 8 stops in one neighborhood of apartments. By Stop 4, there had been 12 newspapers delivered.
Masja [62]
There would be 15 newspapers.
3 0
3 years ago
Read 2 more answers
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