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3 years ago

PLEASE SOLVE FOR ME <3

Mathematics

1 answer:

natta225 [31]3 years ago

5 0

Step-by-step explanation:

At the dance, soft drinks were 4 for $2.20 this use relationship to fill in the table.

A.) fill in the table:

# of drinks: 1 2 3 4

B.) why is the constant of proportionality?

C.) if you were to buy 22 soft drinks, how much would it cost?

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Help math look at pic

Sloan [31]

Answer: $\Large\boxed{(-4,~-3)~\text{and}~(-2,~1)}$

Step-by-step explanation:

Given the system of equation

$1)~y=-(x+2)^2+1$

$2)~y=2x+5$

Expand the parenthesis of the 1) equation

$y=-(x+2)^2+1$

$y=-(x^2+4x+4)+1$

$y=-x^2-4x-4+1$

$y=-x^2-4x-3$

Current System

$1)~y=-x^2-4x-3$

$2)~y=2x+5$

Substitute the y value of the 1) equation with the 2) equation

$2x+5=-x^2-4x-3$

Add ( x² + 4x + 3) on both sides

$2x+5+(x^2+4x+3)=-x^2-4x-3+(x^2+4x+3)$

$2x+5+x^2+4x+3=0$

Combine like terms

$x^2+2x+4x+5+3=0$

$x^2+6x+8=0$

Factorize the quadratic equation

$(x+4)(x+2)=0$

$x=-4~\text{or}~x=-2$

Substitute the x values into one of the equations to find the y value

$y=2x+5$

$y=2(-4)+5=-8+5=-3$

$y=2(-2)+5=-4+5=1$

Therefore, the two solutions are:

$\Large\boxed{(-4,~-3)~\text{and}~(-2,~1)}$

Hope this helps!! :)

Please let me know if you have any questions

8 0

2 years ago

Help, what are the answers to these angles? This is due by the end of today.

umka21 [38]

Answer:

1. 128

2. 136

3. 128

4. 52

5. 44

6. 146

7. 84

8. 96

9. 96

10. 84

11. 128

12. 52

13. 44

14. 136

15. 52

16. 128

17. 136

18. 44

Step-by-step explanation:

3 0

3 years ago

The area of the figure is square units.

Ber [7]

from left to right

1st triangle is = 24

small rectangle is = 24

larger rectangle is = 96

final triangle is = 12

addition of above values give the area of whole figure which is = 156 units

3 0

3 years ago

Y=-1/4x+6 when y equals 4

timofeeve [1]

Answer:

Step-by-step explanation:

Y = -1/4x+6, when y= 4

Same as saying

4 = -1/4x+6 , where y = 4

Multiply both sides by (4x+6)

4(4x+6) = -1

Opening the parentheses

16x + 24 = -4

16x = -4-24

16x = -28

Divide both sides by 16

X = -28/16

X = - 7/4

Ans = -7/4

8 0

4 years ago

Ill cashapp you for your help..

Lelechka [254]

Your answer would 72.6 inches. The way you solved the answer is by adding all the numbers up, then dividing by how many ever numbers you have. Then, you’ll have your answer.

6 0

3 years ago