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Delvig [45]
2 years ago
6

Hey guys pls help asap ​

Mathematics
2 answers:
Vitek1552 [10]2 years ago
7 0

Answer:

- 36

Step-by-step explanation:

1. y= - \frac{1}{9} x --> substitute y with 4 (given value)

2. 4 = - \frac{1}{9} x --> by multiplying 9 both side get rid of the 1/9

         (4= - \frac{1}{9} x)9 --> 36= - x

3. multiply " - " to both side to make "- x" to "x" --> (36= - x) - --> - 36 = x

          - 36 = x => x = -36

cluponka [151]2 years ago
4 0

Answer:

47.5

Step-by-step explanation:

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(HELP PLEASE) It costs $68 for 16 square feet of flooding. How much does it cost for 12 square feet of flooring?
FromTheMoon [43]

Answer:

12 feet of flooring cost $51

Step-by-step explanation:

68/16 = 4.25

4.25 x 12 = 51

8 0
3 years ago
Read 2 more answers
And could someone please help me with this one please
Goshia [24]

Answer:

C

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

here (h, k) = (5, 2), thus

y = a(x - 5)² + 2

To find a substitute (4, - 3) into the equation

- 3 = a + 2 ⇒ a = - 3 - 2 = - 5

y = - 5(x - 5)² + 2 ← in vertex form

Expand (x - 5)² and distribute by - 5

y = - 5(x² - 10x + 25) + 2

  = - 5x² + 50x - 125 + 2

  = - 5x² + 50x - 123 ← in standard form

8 0
3 years ago
Early detection of cancer __________.
nadezda [96]
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6 0
3 years ago
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What are the solutions to the equation x2 +3x-4=0
Serhud [2]
x^{2} +3x-4=0

You wan't to get it into a format of (x+a)(x+b)=0
where a+b = 3 (the one from the 3x)
and where a*b= -4 (from the last -4)

(x+4)(x-1)=0
See how 4+(-1) = 3 and (4)(-1) = -4

now find what values of x would make the equation equal 0
x=-4
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x=1
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4 0
3 years ago
Read 2 more answers
1. 1/8 + 5/6 =?
Ivan
1)Find the lcd for 1/8+5/6
=2/24+5*4/24
since the denominators are equal, combine the fractions 
=3+4*5/24
=23/24

2)Convert the mixed numbers to improper
=15/8*17/5
=255/40
=51/8
=6 3/8

3)1/9 divided by 3
1/3*9
=1/27

4) 2 3/5* 2 6/35
13/5*76/35
13*76/175
988/175
=5 113/175
4 0
3 years ago
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