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umka2103 [35]
3 years ago
8

System equations -2x-6y=-16

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
6 0

Answer:

x=−3y+8

Step-by-step explanation:

Step 1: Add 6y to both sides

−2x=6y−16

Step 2: Divide both sides by -2

−2x/−2 = 6y−16/−2

x=−3y+8

Im hoping this was very helpful : )

aalyn [17]3 years ago
3 0
All real numbers.
........................

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Find the value of 4x2 + 2y where y= 0.5 and x= 3
Citrus2011 [14]

Answer:

37

Step-by-step explanation:

substitute the given values for x and y into the expression

4x² + 2y

= 4(3)² + 2(\frac{1}{2} )

= 4(9) + 1

= 36 + 1

= 37

7 0
3 years ago
I've tried to get the answer for this 13 times now (not joking), plzzz help: write a formula that represents the number of peopl
gtnhenbr [62]

Answer:

  • 2820 seats
  • aₙ = 3n + 9

Step-by-step explanation:

<u>This is an AP with:</u>

  • The first term a₁ = 12
  • Common difference d = 3
  • Number of terms n = 40

<u>Number of the seats:</u>

  • Sₙ = 1/2*n(a₁ + aₙ) = 1/2n(2a₁ + (n - 1)d)
  • S₄₀ = 1/2*40(12*2 + 39*3) = 2820 seats

<u>Formula of nth term:</u>

  • aₙ = a₁ + (n - 1)d
  • aₙ = 12 + (n - 1)*3 = 12 + 3n - 3 = 3n + 9
  • aₙ = 3n + 9

6 0
3 years ago
Solve for the value of X as you should solve for X and explain.
Varvara68 [4.7K]

Answer:

12cos59, about 6.18

Step-by-step explanation:

cos59 = x/12

(adjacent/hypotenuse)

x = 12cos59

plugging this into a calculator gets you about 6.18

6 0
3 years ago
If x=2 and y=3. What is x*y/xy+x*y​
Lunna [17]

Answer

its uhhhhh i dont know

Step-by-step explanation:

3 0
2 years ago
(1+1/3)^2-2/9 <br> PLS HELPPPP MEEEE
Amiraneli [1.4K]

Answer:

14/9 or 1.555556

Step-by-step explanation:

1) Simplify 1 + 1/3 to 4/3.

(4/3)^2 - 2/9

2) Use Division Distributive Property: (x/y)^a = x^a/y^a.

4^2/3^2 - 2/9

3) Simplify 4^2 to 16.

16/3^2 - 2/9

4) Simplify 3^2 to 9.

16/9 - 2/9

5) Simplify.

14/9

(Decimal form: 1.555556)

Thanks, Eddie

8 0
1 year ago
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