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djyliett [7]
4 years ago
7

Please help!

Mathematics
1 answer:
Vitek1552 [10]4 years ago
4 0

Answer:

The answer is

<h2>\alpha  =  -  \frac{1}{2}</h2>

Step-by-step explanation:

From the question

\alpha is inversely proportional to \beta is written as

<h2>\alpha  =  \frac{k}{ \beta }</h2>

where k is the constant of proportionality

When

<h3>\alpha = 4</h3><h3>\beta = 9</h3>

Substituting the values into the formula

we have

4 =  \frac{k}{9}

cross multiply

k = 4 × 9

k = 36

So the formula for the variation is

\alpha  =  \frac{36}{ \beta } [/tex]when [tex]\beta = - 72

That's

\alpha  =  \frac{36}{ - 72}

Simplify

We have the final answer as

<h3>\alpha  = -   \frac{ 1}{2}</h3>

Hope this helps you

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Rashid [163]

Answer:

C

Step-by-step explanation:

the slope is 2/3

4 0
4 years ago
Read 2 more answers
How do I solve this, please help
Bas_tet [7]

9514 1404 393

Answer:

  • EF = DE = 44
  • FG = DG = 36
  • FH = DF = 31

Step-by-step explanation:

Since EH is the perpendicular bisector of DF, ∆DEF is isosceles and sides DE and EF have the same length.

  DE = EF

  (9x -1) = (7x +9)

  2x = 10 . . . . . . . add 1-7x

  x = 5 . . . . . . . . . divide by 2

__

Similarly, marked sides GD and GF are the same length, so ...

  GD = GF

  (10y -4) = (7y +8)

  3y = 12 . . . . . . . . . . add 4-7y

  y = 4 . . . . . . . . . divide by 3

__

Now, we have what we need to calculate the side lengths.

  EF = 7x+9 = 7·5 +9 = 44

  DE = 9x-1 = 9·4 -1 = 44

  FG = 7y+8 = 7·4 +8 = 36

  DG = 10y-4 = 10·4 -4 = 36

  FH = 3x+4y = 3·5 +4·4 = 31

  DF = FH = 31

6 0
3 years ago
Lily's tomato plant grew 3.5 cm in one week. What is this number rounded to the nearest cm?
podryga [215]
3.5
cm would be the first whole number.
So if the number after the whole number (the tenth) is 0-4 the whole number doest change. If it's 5-9 you add one to the whole number.
Since it is a 5 you add one to the 3 making it 4 :)
8 0
4 years ago
Divide. Round your answer to the nearest hundredth. 0.576 / 8.3
Nimfa-mama [501]

Answer:

0.069

Step-by-step explanation:

0.576/8.3 = 0.06939759036

4 0
3 years ago
A retailer returned 2700 defective items to the manufacturer and received a credit for the retail price of $0.83 or 834/34 per i
Helga [31]

Answer:

credit gain by retailer is $2257.39

Step-by-step explanation:

Given data:

Retaile price 83 4/3 c or 84.33c

Let Discount rate 6/7

Discount amount = (6/7)% of 84.33 c = 0.7228 C

Net credit received = 84.33c - 0.7228c = 83.607c

Net credit received = 83.607 c

Item required  = 2700

Total discount = 2700 × 83.0607 = 225739.44c

Total discount = $2257.39

credit received by retailer is $2257.39

8 0
4 years ago
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