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oksian1 [2.3K]
3 years ago
7

Migration

Mathematics
1 answer:
Rina8888 [55]3 years ago
5 0

Answer:

200

Step-by-step explanation:

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5. Seismologists use the Richter scale to measure the magnitudes and intensity of earthquakes that occur all over the earth. (se
vladimir1956 [14]

Answer:

158.49

Step-by-step explanation:

10^(3.4 - 1.2) = 158.48931924611

round to 158.49

4 0
2 years ago
HELPPPP PLEASE HELP ME WITH BASIC MATH I REALLY APPRECIATE IT ((WILL MARK AS BRAINLIEST))​
Yakvenalex [24]

Answer:

3) 522

4) 468

Step-by-step explanation:

hello!

3) in the question, it says the cross section is a square, and the area of PQRS is 81.

for the square, we know that the length and height have to be the same, so if the area is 81, then we know the sides are both 9 because 9*9 is 81 and they're the same numbers multiplied. (same height and length)

with the information that all 4 sides of the square is 9 and the other side is labeled 10, we can figure out the rest.

both squares : 81+81=162

both 10 by 9 sides: 90+90=180

both 10 by 9 sides (top and bottom): 90+90=180

total surface area=162+180+180=522

4) for this problem, we can see that the triangle is a right triangle.

to solve the area of the triangle, we can do (9*12)/2=108/2=54.

there are two sides with triangles, so we double 54 (54*2=108)

9 by 10 side: 90

10 by 12 side: 120

now for the last slide, theres no information on the length. the formula for the diagonal is

a^2+b^2=c^2

which is

9^2+12^2=81+144=255=15^2

with this, the area of the rectangular side gives us 10*15 which is 150.

adding it together, we get

108+90+120+150=468.

hope this helps!

7 0
2 years ago
Jack divided 1,826 by to get a quotient of 18.265
lianna [129]

Answer:

its 100

Step-by-step explanation:

7 0
2 years ago
A rhombus is ____ a quadrilateral.<br><br> A) Never<br> B) Sometimes<br> C) Always
Alchen [17]

Answer:

C

Step-by-step explanation:

A rhombus always has 4 sides, making it a quadrilateral.

Feel free to ask further questions..

5 0
3 years ago
Read 2 more answers
I need help. Whats 50(3)^20?
Alex

Answer:

174339220050

Step-by-step explanation:

50(3^20)

=(50)(3486784401)

=174339220050

8 0
3 years ago
Read 2 more answers
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