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3 years ago

What is the positive solution to the equation 3x^2−12=0?

Mathematics

1 answer:

pantera1 [17]3 years ago

3 0

Answer:

B) 2

Step-by-step explanation:

<u>Solve the equation:</u>

3x² - 12 = 0
x² - 4 = 0
x² = 4
x = √4
x = 2 is the positive solution

Correct choice is B

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Which equation shows y=−12x+4 is in standard form?

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Answer:

-8x

Step-by-step explanation:

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2 years ago

one of the comers of a cube is sliced off the resulting cross section will have a minimum of ? Sides ?

Molodets [167]

a corner of a cube connects 3 sides to each other,

then add the side of the cut

so it would have 4 sides

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3 years ago

if 4 people want tk use a canoe that can only hold up to 800 pounds and they have 60 pounds of gear, what must the average weigh

bekas [8.4K]

Answer:

185 pounds

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3 years ago

A vehicle is moving at a constant speed travels 45 miles in 3/4 hour. The driver thinks he will be late to a meeting that is sti

Ivahew [28]

The unit rate is 60 miles per hour and the driver will reach before time with the calculated constant speed

Step-by-step explanation:

Given

Distance = d = 45 miles

Time = t = 3/4 hour

The unit rate is defined as the distance per unit time. In this case, the unit rate can also be called speed.

So,

$s = \frac{d}{t}\\s = \frac{45}{\frac{3}{4}}\\s = 45 * \frac{4}{3}\\s = 60\ miles\ per\ hour$

Using this unit rate we can see if the car can travel 65 miles in 1.25 hours or not

Given

Distance = d1 = 65 miles

Speed = s = 60 miles per hour

Putting the values in the formula for speed

$s = \frac{d_1}{t_1}\\60 = \frac{65}{t_1}\\t_1 = \frac{65}{60}\\t_1 = 1.08\ hours$

As we can see that 1.08 is less than 1.25 so the driver will reach the meeting before time if he drives on a constant speed of 60 miles per hour

Hence,

The unit rate is 60 miles per hour and the driver will reach before time with the calculated constant speed

Keywords: Speed, unit rate

Learn more about speed at:

#LearnwithBrainly

7 0

3 years ago

Given that g(x)=x-3/x+4 find each of the following.

maks197457 [2]

Given that the function g(x)=x-3/x+4, the evaluation gives:

g(9) = 6/13.
g(3) = 0.
g(-4) = undefined.
g(-18.75) = 1.07.
g(x+h) = x+h-3/x+h+4

<h3>How to evaluate the function?</h3>

In this exercise, you're required to determine the value of the function g at different intervals. Thus, we would substitute the given value into the function and then evaluate as follows:

When g = 9, we have:

g(x)=x-3/x+4

g(9) = 9-3/9+4

g(9) = 6/13.

When g = 3, we have:

g(x)=x-3/x+4

g(3) = 3-3/3+4

g(3) = 0/13.

g(3) = 0.

When g = -4, we have:

g(x)=x-3/x+4

g(-4) = -4-3/-4+4

g(-4) = -1/0.

g(-4) = undefined.

When g = -18.75, we have:

g(x)=x-3/x+4

g(-18.75) = -18.75-3/-18.75+4

g(-18.75) = -15.75/-14.75.

g(-18.75) = 1.07.

When g = x+h, we have:

g(x)=x-3/x+4

g(x+h) = x+h-3/x+h+4

Read more on function here: brainly.com/question/17610972

#SPJ1

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2 years ago