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2 years ago

Anyone knows this?!

Mathematics

1 answer:

Strike441 [17]2 years ago

5 0

Answer:

Option B

Step-by-step explanation:

<u>Step 1: Determine the range and domain</u>

Range is asking for what y values are being used. We can see that the vertex of the parabola is at y = 4 so we know that anything equal or above 4 would be included in the range.

Domain is asking for what x values are being used. We can see that the parabola is pointing in both the negative and positive x direction which means that it will go to infinity on both sides. This gives us the answer that the domain is all real numbers.

Looking at the given options, options C and D are automatically removed because the range is incorrect. Next looking at the domain we see that option A is incorrect which leaves us with option B.

Answer: Option B

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Answer:

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3 years ago

The combustion of one gallon of automobile fuel produces about 5 pounds of carbon (in CO₂). Two autos are making a trip of 600 m

rewona [7]

Answer:

Approximately 50 pounds less carbon (in CO₂) will be produced by the second auto on this trip.

Step-by-step explanation:

We have been given that the combustion of one gallon of automobile fuel produces about 5 pounds of carbon (in CO₂). Two autos are making a trip of 600 miles.

Let us find amount of fuel used by autos by dividing the total distance by their mileage.

$\text{Fuel used by 1st auto}=\frac{\text{ 600 miles}}{\frac{\text{ 20 miles}}{\text{gallon}}}$

$\text{Fuel used by 1st auto}=\frac{\text{ 600 miles}}{\text{ 20 miles}}\times \text{gallon}$

$\text{Fuel used by 1st auto}=30 \text{ gallons}$

$\text{Fuel used by 2nd auto}=\frac{\text{ 600 miles}}{\frac{\text{ 30 miles}}{\text{gallon}}}$

$\text{Fuel used by 2nd auto}=\frac{\text{ 600 miles}}{\text{ 30 miles}}\times \text{gallon}$

$\text{Fuel used by 2nd auto}=20 \text{ gallons}$

Let us find the difference of fuel used by both autos.

$\text{Number of gallons that 2nd auto used less than 1st auto}=30-20$

$\text{Number of gallons that 2nd auto used less than 1st auto}=10$

Since one gallon of automobile fuel produces about 5 pounds of carbon, so 10 gallons of fuel will produces $5\times 10=50$ pounds of carbon.

Since 2nd auto used 10 gallons less than 1st auto, therefore, 2nd auto will produce 50 pounds less carbon than 1st auto.

8 0

3 years ago

Solve for y 7y=84<br><br>Please help me I need this for my homework

Anon25 [30]

Answer:

y=12

Step-by-step explanation:

Lets write out the equation so it easy to work with.

7y=84

Divide both sides by 7

7y/7=84/7

Divide

y=12

4 0

4 years ago

Read 2 more answers

What is the equation of a parabola with vertex (0, 0) and directrix x = -3.

miv72 [106K]

Answer:

${y}^{2}= 12x$

Step-by-step explanation:

The standard equation of a parabola with vertex at the origin and and directix x=-p is of the form

${y}^{2} = 4{p}x$

Where p is simplify the distance from the origin to the directrix.

That is

$p = 3$

${y}^{2} = 4 \times 3x$

This simplifies to

${y}^{2}= 12x$

3 0

3 years ago

Emilio is pickling tomatillos with his grandfather. The tomatillos are approximately

Fudgin [204]

The jar can hold a total of three tomatoes at a time.

<h3>What is volume?</h3>

Volume is the amount of space occupied by a three dimensional shape or object.

The tomatoes is spherical with a diameter of 6 cm (radius = 6/2 = 3cm), hence:

Volume of tomatoes = (4/3) * π * radius³ = (4/3) * π * 4³ = 268 cm³

The jar is cylinder with diameter of 8 cm (radius = 8/2 = 4) and a height of 21 cm, hence:

Volume of jar = π * radius² * height = π * 4² * 21 = 1055.6 cm³

Amount of tomatoes that can be contained in jar = 1055.6 cm³ / 268 cm³ = 3.9

The jar can hold a total of three tomatoes at a time.

Find out more on volume at: brainly.com/question/12410983

8 0

2 years ago

Anyone knows this?! ​

Anyone knows this?!