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Sauron [17]
3 years ago
9

Please help me I will give brainliest

Mathematics
2 answers:
andrew11 [14]3 years ago
4 0

Answer:

1st one

Step-by-step explanation:

madam [21]3 years ago
3 0
The length of the spring is 7.98 cm with a weight of 34 grams attached to it.
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How many solutions does this system have?<br> X+ 5y = 0<br> 20y = -4x
AysviL [449]
2 have solutionsof each way if
4 0
3 years ago
Given: 1; -5; -13 ; -23 ; ...<br><br> Derive a formula for the nth term in the pattern.
mylen [45]

Answer:

  f(n) = -n^2 -3n +5

Step-by-step explanation:

Suppose the formula is ...

  f(n) = an^2 +bn +c

Then we have ...

  f(1) = 1 = a(1^2) +b(1) +c

  f(2) = -5 = a(2^2) +b(2) +c

  f(3) = -13 = a(3^2) +b(3) +c

__

Here's a way to solve these equations.

Subtract the first equation from the second:

  -6 = 3a +b . . . . . 4th equation

Subtract the second equation from the third:

  -8 = 5a +b . . . . . 5th equation

Subtract the fourth equation from the fifth:

  -2 = 2a

  a = -1

Then substituting into the 4th equation to find b, we have ...

  -6 = 3(-1) +b

  -3 = b

and ...

  1 = -1 +(-3) +c . . . . . substituting "a" and "b" into the first equation

  5 = c

The formula is ...

  f(n) = -n^2 -3n +5

3 0
3 years ago
Titus works at a hotel. Part of his job is to keep the complimentary pitcher of water at least half full and always with ice. Wh
Alinara [238K]

Answer:

158.33 minutes = 2.63 hours

Step-by-step explanation:

6 0
3 years ago
kennys weight is 6/7 times melvins weigh what is the ratio of kennys weight to melvints weight give your answer in fraction form
pychu [463]

Answer:

she ways alot sorry to say

3 0
3 years ago
-<br> The sum of 2 and x is at least - 19.
In-s [12.5K]

2 + x = -19 <=> x = -19 -2 = -21

4 0
2 years ago
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