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butalik [34]
3 years ago
8

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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The answer is- Yes, the piecewise graph is a function because it passes the vertical line test.


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3 years ago
Find difference 7 7/8-3 1/4
umka2103 [35]
So first convert to improper fractions
7 and 7/8=7+7/8=56/8+7/8=63/8

3 and 1/4=3+1/4=12/4+1/4=13/4

so nowe we have
63/8+13/4
convert bottom number to same
which is 8
13/4 times 2/2=26/8
now we have
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8 0
3 years ago
Write an arithmetic expression that calculates the average of 18 and 46. you may already know that: the average of two numbers i
Masteriza [31]

In this question , we have to write an arithmetic expression that calculates the average of 18 and 46.

TO find the average, we have to add the numbers and divide by 2.

So here we have to add 18 and 46 and divide by 2, that is

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And that's the required algebraic expression .

8 0
3 years ago
A gentleman is standing 10 feet from a streetlight. He is 5'6 tall and has a shadow of 24 feet. What is the height of the street
Goshia [24]

Answer:

Height of the streetlight ≈ 8 ft(nearest foot)

Step-by-step explanation:

The doc file displays the triangle formed from the illustration. x is the height of the street light. The distance from the gentle man to the street light is 10 ft. He  has a height of 5.6 ft  and the shadow formed on the ground is 24 ft long. The height of the street light can be calculated below.

The length of the tip of the shadow to the base of the street light is 34 ft. Similar triangle have equal ratio of their corresponding sides .

ab = 5.6 ft

The ratio of the base sides = 24/34

The ratio of the heights = 5.6/x

The two ratio are equal Therefore,

24/34 = 5.6/x

24x = 5.6 × 34

24x = 190.4

divide both side by 24

x = 190.4/24

x = 7.93333333333

x ≈ 8 ft

Height of the streetlight ≈ 8 ft(nearest foot)

Download docx
7 0
3 years ago
the weight of an empty pickup truck is 2.1 times the weight of an empty empty car weighs 1.8 tons how many tons does a pickup we
ella [17]
4.28 is the answer I think ._.
8 0
3 years ago
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