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3 years ago

A function is created to represent the costs of living per person in the family. What restrictions would be made to the domain?

Mathematics

1 answer:

Flauer [41]3 years ago

4 0

The domain will be x>0 because their cannot be negative people or negative cost of living per person.

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75% of the normal price of headphones is 45$. What's the normal price?

Brums [2.3K]

Answer:

60$ is the normal price.

Why:

Because if 45$ is 75%, then 30$ is 50%, 15 is 25%, and 0 is 0%. 50% + 50% = 100%. (That's how I did this one, anyway. This works on any 25%, 50%, or 75% problem.)

4 0

2 years ago

Calculate the vertex of the parabola using the equation <br> Please helppp meee :((

koban [17]

FACTOR ALL OF THE EQUATIONS INTO "y = (x-h)^2 + k," AND THE EQUATION'S VERTEX IS (h,k)

10. y = (x+2)^2 - 11 --> (-2, -11)

11. y = -(x-4)^2 + 32 --> (4, 32)

12. y = 3(x-1)^2 - 5 --> (1, -5)

13. y = -2(x+2)^2 + 5 --> (-2, 5)

14. y = 2(x+1)^2 - 1 --> (-1, -1)

15. y = -5(x-1)^2 + 8 --> (1, 8)

16. y = 3(x-3)^2 - 26 --> (3, -26)

17. y = (x+5)^2 - 32 --> (-5, -32)

18. y = -(x-3)^2 + 10 --> (3, -10)

3 0

3 years ago

Tom predicted that the Giants would score three 3-point field goals, score two 6-point touchdowns, and score 1 extra point. If T

Tom [10]

3x3 = 9

2x6 = 12

12+9 = 21+1 =22

score would be 22 points

6 0

2 years ago

Read 2 more answers

I need solving 4.8 (x+4)=2.6

victus00 [196]

<span>4.8 (x+4)=2.6
Use distributive property
4.8x + 19.2= 2.6
Subtract 19.2 from both sides
4.8x = -16.6
Divide 4.8 on both sides so that the only thing remaining on the left side is the variable x.
Final Answer: x = -3.458</span>

7 0

2 years ago

Read 2 more answers

HELP!!! use cross multiplication

Tresset [83]

Let x be the number of square feet to be mowed
215 square feet take 22 minutes
x square feet take 12 minutes

$22x = 12 \times 215 \\ x = (12 \times 215) \div 22$

6 0

2 years ago

Read 2 more answers