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WARRIOR [948]
2 years ago
11

Need help with this math question!!!!!!!!!

Mathematics
2 answers:
exis [7]2 years ago
7 0

ANSWER

The vertex is (1,-3)

EXPLANATION

The given parabola has equation:

{y}^{2}  + 6y + 8x + 1 = 0

We group the variables to obtain:

{y}^{2}  + 6y  =  -  8x -  1

We complete the square to get,

{y}^{2}  + 6y  +  {3}^{2}  =  -  8x -  1 +  {3}^{2}

{(y+ 3)}^{2}  =  -  8x +8

{(y+ 3)}^{2}  =  -  8(x  -1)

The vertex is of the parabola is (1,-3)

Elden [556K]2 years ago
4 0

Answer:

(-1,-3)

Step-by-step explanation:

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The perimeter of the rectangle below is 74 units. Find the length of side RS
Alika [10]

Answer:

20 units

Step-by-step explanation:

The perimeter of a rectangle is

P = 2(l+w)

P = 2( 3x+2 + 4x)

Adding like terms

P = 2( 7x+2)

We know the perimeter is 74 units

74 = 2 ( 7x+2)

Divide by 2

74/2 = 2/2 (7x+2)

37 = 7x+2

Subtract 2 from each side

37-2 = 7x+2-2

35 = 7x

Divide by 7

35/7 = 7x/7

5 =x

We want to find the length RS = PQ = 4x

RS = 4x = 4*5 = 20

4 0
3 years ago
Read 2 more answers
if tyrone works 40 hours per week and has no other sources of income what is his total monthly cash inflow
Lerok [7]

18 \times 40 = 720

720 \times 4 = 2880

2880 - 1800 = 1080

~~

Answer : B

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I hope that helps you out!!

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~Zoey
3 0
3 years ago
Factorise: (3x - 1/2 y + 1/3 z)^2​
Rufina [12.5K]

Given:

(3x - \frac{1}{2} y + \frac{1}{3} z)^{2}

Taking the LCM as 6,

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Applying the product rule to \frac{1}{6} (18x−3y+2z)^{2}:-

=  > ( \frac{1}{6})^{2} (18x−3y+2z)^{2}

Now applying the product rule to 1/6:-

\frac{1^{2} }{ {6}^{2} }(18x - 3y + 2z)^{2}

Hence, the answer.

7 0
2 years ago
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I need to solve it but don't know how
Agata [3.3K]
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Juli2301 [7.4K]
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hope this will help you 
4 0
2 years ago
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