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3 years ago

13

Please help. Cleary show what the slope and y-intercept are for each problem. An explanation would be nice, but I'm not going to

require it.

1 answer:

Romashka-Z-Leto [24]3 years ago

6 0

Answer:

7: Slope: -2/3

8: y-intercept: (0,6)

9: Slope: -2

10: y-intercept: (0,4)

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Rewrite 4 6/7 as an improper fraction.<br><br> sorry this is the correct question

goblinko [34]

The correct answer is, obviously, 34/7.

8 0

3 years ago

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two points on the same side of a tree are 65 feet apart. the angles of elevation of the top the tree are 21 19 from one point an

zloy xaker [14]

The question is find the height of the tree, given that at two points 65 feet apart on the same side of the tree and in line with it, the angles of elevaton of the top of the tree are 21° 19' and 16°20'.

1) Convert the angles to decimal form:

19' * 1°/60' = 0.32° => 21° 19' = 21.32°

20' * 1°/60' = 0.33° => 16° 20' = 16.33°

2) Deduce the trigonometric ratios from the verbal information.

You can form a triangle with

- horizontal leg x + 65 feet
- elevation angle 16.33°
- vertical leg height of the tree, h

=> trigonometric ratio: tan (16.33) = h /( x + 65) => h = (x+65) * tan(16.33)

You can form a second triangle with:

- horizontal leg x
- elevation angle 21.32°
- vertical leg height of the tree, h

=> trigonometric ratio: tan(21.32) = h / x => h = x * tan(21.32)

Now equal the two expressions for h:

(x+65)*tan(16.33) = x*tan(21.32)

=> x*tan(16.33) + 65*tan(16.33) = x*tan(21.32)
=> x*tan(21.32) - x*tan(16.33) = 65*tan(16.33)
=> x = 65*tan(16.33) / [ tan(21.32) - tan(16.33) ] = 195.73 feet

=> h = 195.73 * tan(21.32) = 76.39 feet.

Answer: 76.39 feet

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3 years ago

Find the ratio of p to S <br><br> 3p=8s

vodomira [7]

3p : 8s
1p : (8/3)s

So for every one 'p' there is (8/3) 's'

Ratio of p to s is 1 : 8/3

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3 years ago

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If you were using a buy one, get one type of discount?

Gelneren [198K]

if you can plz rewrite this that way i can help

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3 years ago

If a,b, and c are prime numbers, do (a+b)(a+b) and cc have a common factor that is greater than 1?

Tanya [424]

Answer:

1. Information is not sufficient

2. Information is not sufficient

Step-by-step explanation:

Question Modified

If a,b, and c are prime numbers, do (a+b) and c have a common factor that is greater than 1?

(1) a,b, and c are all different prime numbers

(2) c≠2

Explanation

1. Let's assume values of 1,3 and 5 to a, b, and c respectively

a + b = 1+3 = 4

4 and 5 do not have any common factor aside 1

Let's assume values of 1,3 and 2 to a,b and c respectively

a + b = 1+3 = 4

4 and 2 have a common factor of 2

So, the available information is not sufficient

2.

Let's assume values of 2,7 and 3 to a b and c response

a + b = 2 + 7 = 9

9 and 3 have a common factor of 3

Also, let's assume values of 2,7 and 5 to a, b and c

a + b = 2 + 7 = 9

9 and 5 do not have a common factor

So, the available information is also not sufficient to answer the question.

3 0

3 years ago