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3 years ago

Explain why zero cannot be in the domain of an inverse variation

Mathematics

1 answer:

ElenaW [278]3 years ago

7 0

Inverse variation means y = k/x, right? Your question is why can't x = 0. Answer - you're not allowed to divide by 0.

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a florist is told that 40% of the 350 flowers ordered must be red roses how many roses must be in the order

Nina [5.8K]

Answer:

140 because half which is (%50) of 350 is 175 so 40% of 350 is 140

7 0

3 years ago

What is the common ratio for the sequence 1, 4, 16, 64,...? 1/4 1/2 2 4

Crazy boy [7]

Answer:

Step-by-step explanation:

each term is 4 times the previous term

the common ration is 4

4 0

3 years ago

Read 2 more answers

Un jardín rectangular de 50 cm de largo por 34 m de ancho está rodeado por un camino de arena uniforme.Halla la anchura de dicho

Anastasy [175]

Answer:

5.85 m

Step-by-step explanation:

The width of the sand road can be calculated knowing its area and the dimensions of the rectangular garden as follows:

$A_{g} = a.b$

Where:

Ag: is the area of the rectangular garden

a: is the length of the rectangular garden = 50 cm = 0.5 m

b: is the width of the rectangular garden = 34 m

$A_{s} = 540 m^{2}$

Where:

As: is the area of the sand road

The relation between the area of the sand road and the area of the rectangular garden is the following:

$A_{s} + A_{g} = (a+2x)*(b+2x)$

$540 m^{2} + 0.5m*34m = ab + 2ax + 2bx + 4x^{2}$

$557 m^{2} = ab + 2x(a + b) + 4x^{2}$

$557 m^{2} - 17m^{2} - 2x(34.5 m) - 4x^{2} = 0$

$540 - 69x - 4x^{2} = 0$

By solving the above equation for x we have two solutions:

x₁ = -23.10 m

x₂ = 5.85 m

Taking the positive value, we have that the width of the sand road is 5.85 m.

I hope it helps you!

7 0

3 years ago

How many cups would 32 tablespoons equal?

erik [133]

Since 1 cup = 16 tablespoons...

32 tablespoons would equal to 2 cups. :D

5 0

3 years ago

A full lake begins dropping at a constant rate. After 4 weeks it has dropped 3 feet. What is the unit rate of change in the lake

Valentin [98]

A full lake is dropping at its constant rate, meaning it is unchanging over time.
After 4 weeks’ time, it already dropped 3 feet.
Now, let’s solve for the Unit rate based on the given data.
=> 3 feet in 4 weeks
=> Unit rate is 3 feet per 4 weeks
=> in 4 weeks there are (7 * 4) = 28 days
=> 3 feet / 28 days
=> the Unit rate is .107 feet / day

7 0

3 years ago