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ki77a [65]
3 years ago
11

What expressions are equivalent to -2.5 (1 - 2n) - 1.5n?

Mathematics
2 answers:
jok3333 [9.3K]3 years ago
8 0

Answer:

C. -2.5 - 6.5n

Step-by-step explanation:

i just think thats the answer

yawa3891 [41]3 years ago
4 0
Step one 1.5 was replaced by (15/10) then rearrange 1/2*n+2*n-(14/3+(15/10)*n)=0

The answer is

N=14/3=4.667
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Which translation was preformed?
Alinara [238K]

Answer:

Rotation was used to transform the figure.

Step-by-step explanation:

Since only one transformation was used, rotating the pre-image ABC 180° counterclockwise around the origin formed the image DEF.

I hope this helped! :-)

6 0
3 years ago
Give the first 8 terms of the sequence. a1= -1, a2=2, a[n]=a[n-2](3-a[n-1])
maxonik [38]

Step-by-step explanation:

Give the first 8 terms of the sequence. a1= -1, a2=2, a[n]=a[n-2](3-a[n-1])

Given

first term a1 = -2

second term a2 = 2

We are to get the first 8 terms. Given the sequence

a[n]=a[n-2](3-a[n-1])

a[3]=a[3-2](3-a[3-1])

a[3]=a[1](3-a[2])

a[3]=-2(3-2)

a3 = -2

a[n]=a[n-2](3-a[n-1])

a[4]=a[4-2](3-a[4-1])

a[4]=a[2](3-a[3])

a[4]=2(3+2)

a4= 10

a[5]=a[n-2](3-a[n-1])

a[5]=a[5-2](3-a[5-1])

a[5]=a[3](3-a[4])

a[5]=-3(3-10)

a5 = -3(-7)

a5 = 21

a[6]=a[n-2](3-a[n-1])

a[6]=a[6-2](3-a[6-1])

a[6]=a[4](3-a[5])

a[6]= 10(3-21)

a6 = 10(-18)

a6 = -180

a[n]=a[n-2](3-a[n-1])

a[7]=a[7-2](3-a[7-1])

a[7]=a[5](3-a[6])

a[7]= 21(3+180)

a7 = 21(183)

a7 = 3,843

a[8]=a[n-2](3-a[n-1])

a[8]=a[8-2](3-a[8-1])

a[8]=a[6](3-a[7])

a[8]=-180(3-3843)

a8 = -180(-3840)

a8 = 691,200

6 0
3 years ago
The 20th term of an arithmetic progression 1,5,9,13......​
slavikrds [6]

Answer: 61

Step-by-step explanation:

If the difference between 13 and 1 is 12 in 4 terms then 12x5+1 should equal the 20th term.

5 0
3 years ago
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What best describes the expression y over 4? Some number divided by 4 Some number times 4 4 more than some number 4 less than so
Serhud [2]
<em>y over 4  </em><em>means the number (y)</em><u><em /></u><em> </em><em>divided by 4.</em><u><em>
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4 years ago
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The statement below describes a situation in which opposite quantities combine to make zero:
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The answer is false. if the quantities combine to make zero


3 0
4 years ago
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