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3 years ago

PLEASE HELP LOTS OF POINTS

Mathematics

2 answers:

Cloud [144]3 years ago

5 0

Answer:

Yes

Step-by-step explanation:

they are on the same plane

Korvikt [17]3 years ago

4 0

Answer:

Step-by-step explanation:

Coplanar points are the points on the same plane.

We see two planes, a vertical and a horizontal.

The points H, I and J are on the same vertical plane, so are coplanar.

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Would adding the same number over and over again be considered a proportional relationship?

Vaselesa [24]

No that is not a proportional relationship

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3 years ago

In the expression 2a+3b-4c, 2a,3b,and -4c are examples of?

erica [24]

Terms they are examples of terms.

6 0

3 years ago

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In a standard game of pool, there are 15 balls labeled 1 through 15. a) In how many ways can the 15 balls be ordered? (5 points)

katovenus [111]

Answer:

Step-by-step explanation:

If there are 15 balls labeled 1 through 15 in a standard football game, the order of arrangement of the 15 balls can be done in 15! ways.

15! = 15*14*13*12*11*10*9*8*7*6*5*4*3*2

15! = 1.308*10¹² ways

b) If 3 of the 15 balls are to be chosen if order does not matter, this can be done in 15C3 number of ways. Since we are selecting some balls out of the total number of balls, we will use the concept of combination.

Using the combination formula nCr = n!/(n-r)!r!

15C3 = 15!/(15-3)!3!

15C3 = 15!/12!3!

15C3 = 15*14*13*12!/12!*6

15C3 = 15*14*13/6

15C3 = 455 ways

7 0

3 years ago

What’s 1 2/5 as a improper fraction

Pie

Answer:

7/5

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

I'll give 100 pts and brainliest if you answer this!!!

alex41 [277]

Answer:

1. $4i+15$

2. $5i+18$

3. $-11i+10$

4. $-2i$

5. $9i+5$

6. $-13$

7. $-15i^{2}+18i$

8. $-4i^2-16i$

9. $-6i^2+38i-40$

10. $-42i^2+27i-3$

11. $-25i^2+4$

12. $-i^2+9$

13. $2i+8$

14. $-18i+10$

Step-by-step explanation:

Standard form means to put the terms in order based on their exponent (x³ -> x² -> x -> constant)

1. (6 - i) + (9 + 5i)

$4i+15$

2. (7 + 3i) + (11 + 2i)

$5i+18$

3. (12 + 4i) - (2 - 15i)

$-11i+10$

4. (3 - 7i) - (3 + 5i)

$-2i$

$35i^2+6i-9$

5. 7 - (2 - 3i) + 6i

$7 - 2 + 3i + 6i$

$9i+5$

6. -16 + (3 + 4i) - 4i

$-16 + 3 + 4i - 4i$

$-13$

7. 3i(6-5i)

$18i-15i^2$

$-15i^2+18i$

8. -2i(8+2i)

$-16i+-4i^2$

$-4i^2-16i$

9. (-5 + i)(8 - 6i)

$-40+30i+8i-6i^2$

$-6i^2+38i-40$

10. (3 - 6i)(-1 + 7i)

$-3+21i+6i-42i^2$

$42i^2+27i-3$

11. (2 + 5i)(2 - 5i)

$4-10i+10i-25i^{2}$

$-25i^2+4$

12. (-3 - i)(-3 + i)

$9 -3i + 3i -i^2$

$-i^2+9$

13. (4 + i) * 2

$2i+8$

14. (5 - 9i) * 2

$-18i+10$

:p when I first started answering this I thought the parentheses were being multiplied every time and did 100x more work .-.

Hope it helps <3 :D

6 0

3 years ago