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3 years ago

13

Harry Hess proposed that when two oceanic plates met each other, the denser plate would sink under the less dense plate. This is

known as _____

1 answer:

svet-max [94.6K]3 years ago

6 0

This is known as a subduction zone.

You might be interested in

What is the image of (9,3) after a dilation by a scale factor of 3 centered at the<br> origin?

sergiy2304 [10]

Answer: (27, 9)

Multiply the original coordinates by the scale factor 3 to get this answer

9*3 = 27

3*3 = 9

This only works if the center of dilation is the origin.

The general rule is $(x,y) \to (kx, ky)$ where k is the scale factor.

7 0

2 years ago

12 = -4(-6x -3) +24

Reil [10]

Answer:

x = -1

Step-by-step explanation:

Solve for x:

12 = 24 - 4 (-6 x - 3)

-4 (-6 x - 3) = 24 x + 12:

12 = 24 x + 12 + 24

Grouping like terms, 24 x + 12 + 24 = 24 x + (12 + 24):

12 = 24 x + (12 + 24)

12 + 24 = 36:

12 = 24 x + 36

12 = 24 x + 36 is equivalent to 24 x + 36 = 12:

24 x + 36 = 12

Subtract 36 from both sides:

24 x + (36 - 36) = 12 - 36

36 - 36 = 0:

24 x = 12 - 36

12 - 36 = -24:

24 x = -24

Divide both sides of 24 x = -24 by 24:

(24 x)/24 = (-24)/24

24/24 = 1:

x = (-24)/24

The gcd of -24 and 24 is 24, so (-24)/24 = (24 (-1))/(24×1) = 24/24×-1 = -1:

Answer: x = -1

8 0

2 years ago

Find the first term and the common ratio <br>third term =6 and seventh term= 96

mamaluj [8]

Answer:

First term a₁ = 3/2 and common ratio r = 2

Step-by-step explanation:

We need to find the first term and common ratio while we are given third term = 6 and seventh term = 96

Since common ratio is required so, the sequence is geometric sequence

The formula used is: $a_n= a_1r^{n-1}$

We are given: third term = 6 i,e

$a_3=a_1r(3-1)\\6=a_1r^2----eq(1)$

Seventh term = 96

$a_7=a_1r(7-1)\\96=a_1r^6----eq(2)$

Dividing eq(2) and eq(3)

$\frac{96}{6}=\frac{a_1r^6}{a1r2}\\16=\frac{r^6}{r^2}\\16=r^{6-2}\\=> r^4=16\\Taking \ fourth \ root\\ r=2,-2,2i,-2i\\ \ We \ will \ consider \ only \ positive \ value \ of \ r \ i.e \ \textbf{ r= 2}$

So, Common Ratio r = 2

Finding First term using eq(1)

$a_3=a_1r^2\\6=a_1(2)^2\\6=a_1(4)\\a_1= \frac{6}{4}\\a_1= \frac{3}{2}$

So, First term a₁ = 3/2 and common ratio r = 2

6 0

3 years ago

The water level in an ocean bay changes at an average rate of 3 meters per hour. At this rate,how many hours would it take for t

Charra [1.4K]

In this big ol' word problem, this is just an instance of basic multiplication/division.

If it takes it 1 hour for 3 meters...

12 ÷ 3 = 4.

It would take 4 hours for the water level to change to 12 meters.

3 0

3 years ago

Read 2 more answers

Please I need answers ASAP

Vinil7 [7]

9+x / 3x = 5/6

If you look at it as a proportion, then you can "cross-multiply" it"

(9+x) · 6 = 3x · 5

54 + 6x = 15x

Subtract 6x from each side:

54 = 9x

Divide each side by 9 :

6 = x

7 0

3 years ago