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olga_2 [115]
3 years ago
10

Q1 Two points A (-2, 9) and B (4, 8) lie on a line l. (i) Find the slope of the line l. (ii) Find the coordinates of the midpoin

t of the points A and B (iii) Find the distance between points A and B.
Mathematics
1 answer:
lbvjy [14]3 years ago
3 0

Answer:

Slope: -1/6

Midpoint of AB: (1, 8.5)

Distance of AB: √37

Step-by-step explanation:

Slope formula: m = \frac{y2-y1}{x2-x1}

Midpoint formula: (\frac{x1+x2}{2} ,\frac{y1+y2}{2} )

Distance formula: d = \sqrt{(x2-x1)^{2}+(y2-y1)^{2}}

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A right regular hexagonal prism has a height of 5 cm. The area of the base is 93.6 square centimeters and the length of one side
Sergeu [11.5K]

Answer:

367.2 cm²

Step-by-step explanation:

First, you need to find the area of the lateral surfaces, since each one is a 5cm by 6cm rectangle, all you need to do is multiply to find the area of one of them, and then multiply by 6 to find the area of all 6 sides.

lateral area = 5cm * 6cm * 6

lateral area = 30cm² * 6

lateral area = 180 cm²

Next, you need to find the total surface area by multiplying the area of the base by two and adding that to the lateral surface area.

SA = 180cm² + 2(93.6cm²)

SA = 180cm² + 187.2cm²

SA = 367.2cm²

The total surface area is 367.2 cm².

8 0
3 years ago
Help me problems! asap 1-7
Westkost [7]
Multiply the triangles then divide to find the missing number
7 0
3 years ago
A stock is changing value by -$0.12 each minute. The stock’s value will have changed by -$1.68 after
MaRussiya [10]

Answer:

14 Minutes

Step-by-step explanation:

1.68 divided by 0.12 is 14 or Multiply 0.12 by 14 and you get 1.68.

8 0
2 years ago
Use a protractor to draw a pentagon so that the bottom side is horizontal and the left and right sides are perpendicular to the
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Answer:

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Step-by-step explanation:

I took the test

5 0
2 years ago
Read 2 more answers
I need help on this question
Doss [256]
Hi,
Following the rules of PEMDAS you first subtract in the parentheses. 
(5-2)=3
Then multiply the parentheses.
(3)(-6)=-18
Solve the exponent.
-4^2=16
Then you add -18 and 16 to get -2. 
So the answer is B.-2.
I hope this helps.
4 0
3 years ago
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