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Anit [1.1K]
3 years ago
8

Someone help me with all these questions

Mathematics
1 answer:
Illusion [34]3 years ago
3 0
28. 220 yards is 660 feet and you have to multiply by 12 so you get 7920.

29. 100 feet is 1200.

30. You have to multiply by 12 to get feet and multiply by 3 to get yards and then you get 1728.

31. You have to multiply by 10 so you get 216.
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What is the midpoint of (-2,3) and (10,3) *simple answer please
Allushta [10]

The "midpoint formula" is the same as the "average formula:"

x-coordinate of the midpoint = average of -2 and 10:

= (-2 + 10) / 2 = 4


y-coordinate of the midpoint = average of 3 and 3:

= (3+3) / 2 = 3

Thus, the midpoint of the given line segment is (4,3).


5 0
3 years ago
Please help solve 6x < 42
tensa zangetsu [6.8K]

6x<42

Divide 6 by both sides

x<7


7 0
3 years ago
1. Find the sum of the measures of the interior angles of a convex hexagon.
butalik [34]

Answer:

could you include a pic please?

7 0
3 years ago
Read 2 more answers
A number cube with the numbers 1 through 6 is rolled. What is the probability of the number cube showing an even number or a num
inna [77]

Answer:

Step-by-step explanation:

The correct answer is 5/6 = 83.3%

I really hope this helps!

8 0
3 years ago
Help me with this one please​
lesya [120]
For me, it’s easiest when i distribute the negative sign if i need to and then reorder to put the like terms together. and then solve.
(also sorry if it’s a little confusing with all the parentheses, i use them because it helps me organize everything)


21. (4x-9y) + (6x+10) + (8y-4)
= 4x + 6x - 9y + 8y + 10 - 4
= 10x - y + 6
—> D

22. (6x+9y-15) + (2x-9y+8)
= 6x + 2x + 9y - 9y - 15 + 8 (the 9y - 9y = 0, so you can leave it out of the final equation)
= 8x - 7
—> D

23. (9x^2-8x+3) - (5x^2-6x+4)
= 9x^2 - 8x + 3 - 5x^2 -(-6x) - 4
= 9x^2 - 5x^2 - 8x + 6x + 3 - 4 (remember that two - signs next to each other make a + sign)
= 4x^2 - 2x - 1
—> A

24. (9x^3-7x+8) - (5x^2+7x-10)
= 9x^3 - 7x + 8 - 5x^2 - 7x -(-10)
= 9x^3 - 5x^2 - 7x - 7x + 8 + 10
= 9x^3 - 5x^2 - 14x + 18
—> D

25. (6x+14y) - ((7x+5y) + (x-8y))
= (6x+14y) - (7x + x + 5y - 8y)
= (6x+14y) - (8x-3y)
= 6x + 14y - 8x -(-3y)
= 6x - 8x + 14y + 3y
= -2x + 17y
—> B
5 0
2 years ago
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