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Ilia_Sergeevich [38]
3 years ago
8

2. (- 6x + 3) + (x - 7)​

Mathematics
2 answers:
irina1246 [14]3 years ago
6 0

Answer:

-6x^2+45x-21

Step-by-step explanation:

So use the FOIL method

First- -6x*x

Outter- -6x*-7

Inner- 3*x

last- 3*-7

liq [111]3 years ago
5 0

Answer:

-5x-4

Step-by-step explanation:

You first have to combine like terms. (-6x + x) + (+3 -7) = -5x-4

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3 years ago
Look at the following sequence. 128, 320, 800, 2000, . . . If it is a geometric sequence, choose the common ratio. If it is not
OlgaM077 [116]

Answer:

It is a geometric sequence en the common ratio is: r=\frac{5}{2}.

Step-by-step explanation:

1. By definition, a geometric sequence is a sequence in which you obtain a term by multiplying the previous one by a common ratio.

2. The common ratio is obtained by dividing a term by its preceding term.

3. Keeping this on mind, you have:

\frac{320}{128}=\frac{5}{2}\\

\frac{800}{320}=\frac{5}{2}

\frac{2000}{800}=\frac{5}{2}

4. As you can see, the common ratio is \frac{5}{2}


3 0
3 years ago
Read 2 more answers
Find the equation of the linear function represented by the table below in slope-
Anarel [89]

Answer:

y = 3x + 5

Step-by-step explanation:

slope:

11 - (-1) / 2 - (-2) = 12/4 = 3

slope intercept form is y = mx + b, so right now you have m = 3:

y = 3x + b

now, since you know x = -2 and y =-1 is a solution, you can plug those values in:

-1 = 3 * -2 + b

-1 = -6 + b

5 = b

This means the equation is y = 3x + 5

5 0
3 years ago
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Kyle is practicing for a 3 mile race. His normal time is 23 minutes and 26 seconds. Yesterday it took him 21 minutes and 38 seco
vesna_86 [32]

Answer:

It is 1 minute and 48 second difference so he was 1 minute and 48 second faster, I may be wrong so please check

Step-by-step explanation:

3 0
3 years ago
A family of four spent $104 for tickets to a concert on Friday and they spent $140 for tickets to dinner theater on Saturday.Wha
BigorU [14]

Answer:

$61

Step-by-step explanation:

To determine the cost per person to attend these events, you have to add the cost of the tickets for the concert plus the cost of the tickets for dinner theater. After finding the total amount that was spent, you have to divide this by 4 that is the number of people:

Total cost= $104+$140

Total cost= $244

Cost per person= $244/4

Cost per person= $61

According to this, the cost per person to attend these events is $61.

5 0
3 years ago
Read 2 more answers
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