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Olenka [21]
3 years ago
8

The supercontinent that existed about 200 million years ago was named

Mathematics
2 answers:
Effectus [21]3 years ago
6 0

Answer:

The answer is Pangaea.

Step-by-step explanation:

This Pangaea was a super continent which existed during the late Paleozoic and early Mesozoic eras that is about 200 million years ago.

After this era the Pangaea was broken by the mechanism of plate tectonics. With the breakup of Pangaea, the climate throughout the world changed.

About 200 million years ago Pangaea broke into two new continents Laurasia and Gondwanaland.

mylen [45]3 years ago
3 0
Pangaea is the answer I had the same question.
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PLZ HELP ASAP I'LL GIVE BRAINLY sketch the solution set to the system of inequalities shown below
earnstyle [38]

Answer:

hi! you can use desmos graphing calculator to help you graph these- just look it up and plug the equation in. its nice for future use as well.

Step-by-step explanation:

and no , (5,10) isn't a solution to the equation because it falls under x≥2 but not under y<x+3. Hope this helps !

6 0
3 years ago
The graph of which equation below is a horizontal line?
pochemuha

Answer:

2

Step-by-step explanation:

The equation of a horizontal line is y = c

where c is the value of the y- coordinates the line passes through

Thus y = 3 ← is the equation of a horizontal line

4 0
3 years ago
Which equation is the inverse of y = 9x2 - 4?
m_a_m_a [10]

Answer:

The inverse will be:

y' = \frac{\sqrt{x+4}}{3}

Step-by-step explanation:

In order to find the inverse of the equation, we do a variable change, since we are finding the inverse, :

f(x)  = 9x^{2} - 4

y = 9x^{2} - 4

x = 9y' ^{2} - 4

Now solve for y'.

First add 4 in both sides of the equation and change to the left y'.

x + 4= 9y'^{2} - 4+4

9y'^{2} = x + 4

Second divide by 9

9y'^{2}/9 = (x + 4)/9

y'^{2} = (x + 4)/9

Now you will have to clear y, with the square root.

[tex]y'^{\frac{2}{2}} = \sqrt{x + 4}  / \sqrt{9}[/tex] =

Simplifying terms

y' = \frac{\sqrt{x+4}}{3}

f^{-1}(x)  = \frac{\sqrt{x+4}}{3}

You can check the answer by doing the evaluation of the following equation:

(f o f^{-1} ) (x)

substitute the equation for y' or inverse function f^{-1}

f(\frac{\sqrt{x+4} }{3})

Now substitue the value into f(x)

You will have

= 9(\frac{\sqrt{x+4} }{3}} )^{2}  - 4\\\\Solving\\\\9(\frac{{x+4} }{9}} )  - 4

=x

5 0
3 years ago
Enter the expression using exponents. 1\2 × 1\2 × 1\2 × 1\2 × 1\2 × 1\2 × 1\2
Ad libitum [116K]

Answer:

<h2>1/2⁷</h2>

Step-by-step explanation:

1/2 is multiplied by itself 7 times, thus an exponent of 7.

I'm always happy to help :)

3 0
3 years ago
Read 2 more answers
Write 3 3/4 as an improper fraction?​
ale4655 [162]

Answer:

15/4

Step-by-step explanation:

multiply the whole number (3) by the denominator (4), then add the numerator (3) then put that over the denominator to convert any mixed number into an improper fraction.

8 0
2 years ago
Read 2 more answers
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