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3 years ago

Please help fast!!!!!!!!!!!!!!

Mathematics

1 answer:

denis-greek [22]3 years ago

5 0

Answer:

The third option, -1/2(30) = -15

Step-by-step explanation:

If it decreases by 1/2, we know it has to be -1/2, and the days we are given are 30. We need to multiply -1/2 by 30 in order to find the water level after 30 days, which would be -15 (inches?) I hope this helped.

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astra-53 [7]

A regular polygon has about 5 lines of symmetry. The number of lines of symmetry is equivalent to the number of sides.

6 0

3 years ago

Red: y = 7x

Degger [83]

Answer:

Green

Step-by-step explanation:

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3 years ago

Hello! Could you please help with these? It was due quite a long time ago. I have a D in this class and need to get my grades up

Digiron [165]

Answer:

16. $y=7x$

17. $y=0.5x$

18. $y=3x$

19. $y=2x$

Step-by-step explanation:

Equation is $y=kx$ where k is a constant of proportionality.

16.

$\frac{y}{x}=\frac{10.5}{1.5}=\frac{14}{2}=\frac{24.5}{3.5}=\frac{35}{5}=7$

So, equation is $y=7x$

17.

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18.

$\frac{y}{x}=\frac{6}{2}=\frac{9}{3}=\frac{15}{5}=\frac{18}{6}=3$

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19.

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4 0

3 years ago

Find (h . g) (x) h (x) = 3x - 3 and g (x) = x2 + 3 A. 3x3 - 9 B. 3x3 - 3x2 + 9x C. 3x3 - 3x2 + 9x - 9 D. 3x3 + 3x2 + 9x - 9

svp [43]

Answer:

Step-by-step explanation:

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8 0

3 years ago

Drag each number to the correct location on the equations. Each number can be used more than once, but not all numbers will be u

VARVARA [1.3K]

Answer:

a=$10

c=$3

Step-by-step explanation:

Step one:

given data

let adults tickets be a

and child tickets be c

Roy's purchase

6a+2c=66------1

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5a+4c=62-------2

Hence, the system of equations

6a+2c=66------1

5a+4c=62-------2

solving simultaneously

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5 0

3 years ago

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