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larisa86 [58]
2 years ago
7

IS THIS CORRECT??????????

Mathematics
2 answers:
Alika [10]2 years ago
7 0
The correct answers are the 3rd and 4th ones.
r-ruslan [8.4K]2 years ago
7 0
The correct answers would be the third and fourth
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HELP PLEASE!!!<br> A:645,473<br> B:2,151,575<br> C:8,175,987<br> D:10,542,719
marysya [2.9K]
38% of 21,515,714 is 8175971.32 which can be rounded to 8,175,971.
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6 0
3 years ago
30 Points! please help!
SVEN [57.7K]

Answer:

18) 4 * 10 ^ -10

19) t ^ 9

Step-by-step explanation:

18. When multiplying in scientific notation, just multiply the regular numbers together and add the exponents for the tens.

So it'll be 40 * 10^-11

However, the beginning number should have the decimal right after the 4, not any place after (for example, it's 3.056, not 30.56 or 3056.)

To fix this, move the decimal place forward one space from 40. to 4.0, and add 1 to the -11 power.

So the answer is now 4 * 10^-10

19. When dividing exponents, if the base number is the same, you can divide. (Basically, you can not divide x^2 and y^3 because x and y aren't the same)

Since in this case it's t, you can divide.

Dividing exponents is simple: just subtract them.

14 - 5 = 9

so the answer is t ^ 9

3 0
3 years ago
5x-2 what’s the slope and y-int ?
uranmaximum [27]

Answer:

Slope = 5.

y-int = (0, -2).

Step-by-step explanation:

y = 5x - 2

The slope intercept form is

y = mx + b  where m = the slope and b = the y-intercept.

So here,  the slope = 5 and the y-intercept is where y = -2.  That is the point (0, -2).

8 0
3 years ago
What is the length of side XY as shown on the coordinate plane?
mamaluj [8]

Answer:

4 units

Step-by-step explanation:

i took the test :) gl

7 0
2 years ago
On a cube, what proportion of the surface area is on each face, to the nearest percent?
Nookie1986 [14]
Cubes have 6 equal faces, and the surface area is the sum of all of these faces. Thus, one face would be 1/6 of the cube's surface area, or about 17%.
3 0
3 years ago
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