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IrinaVladis [17]
2 years ago
13

A shipment contains 9 igneous, 7 sedimentary, and 7 metamorphic rocks. If 7 rocks are selected at random, find the probability t

hat exactly 5 are sedimentary.
Mathematics
1 answer:
yKpoI14uk [10]2 years ago
7 0

Answer:

75 percent

Step-by-step explanation:

see the thing is

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What is 922/21 as a mixed number?
Fed [463]

Answer:

The answer is 43 and 19 over 21

Step-by-step explanation:

21 goes into 922 43 times. This giving you 903. 43 Will then be your Whole number. You the subtract 922 by 903, this giving you 19. 19 is going to be your numerator. Then you always keep the denomonator which is 21. This giving you 43 and 19 over 21

4 0
3 years ago
-18-3 what's the answer
Llana [10]
The answer is -21. Rule is that you follow the sign of the larger and add the opposite
4 0
4 years ago
Read 2 more answers
If the perimeter of a rectangle is 78 inches and the length is 13 inches more than its​ width, find the area of the rectangle.
Feliz [49]
I believe the area of the rectangle would be 338
8 0
4 years ago
A. x=17<br>b. x=13<br>c. x=119<br>d. x=169​
seropon [69]

Answer:

the answer is: x=13

Step-by-step explanation:

We get the answer using Pitagoras.

5^2+12^2=x^2

so

x=\sqrt{5^2+12^2}=\sqrt{25+144}=\sqrt{169}=13

6 0
3 years ago
Read 2 more answers
When a number is written in scientific notion, how can you tell right away whether or not it is or than or equal to one?
nikklg [1K]
Well, to know right away whether or not a number is equal to 1, you need to know what 1 is in scientific notation. 1 * 10^0. Easy enough :) To know if the number is greater than one, any positive number multiplied by 10^a number higher than 0 is greater than one. As well as any number greater than one multiplied by 10^0 or a positive number. For numbers less than one, the way to know is if the number is being multiplied by 10 ^ a negative number. I hope this helps :)
8 0
4 years ago
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