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mina [271]
3 years ago
12

Determine the sequence

Mathematics
1 answer:
balu736 [363]3 years ago
5 0
1) neither
2) geometric sequence
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4(5x-2)=2(9x+3)<br> help please!<br> 12 points and<br> brainliest
photoshop1234 [79]

Answer:

x = 7

Step-by-step explanation:

Given

4(5x - 2) = 2(9x + 3) ← distribute parenthesis on both sides

20x - 8 = 18x + 6 ( subtract 18x from both sides )

2x - 8 = 6 ( add 8 to both sides )

2x = 14 ( divide both sides by 2 )

x = 7

8 0
2 years ago
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
5 0
3 years ago
12x + 2y = 6<br><br>A. solve for y<br><br>B. What is the slope and what is the y-intercept?<br><br>​
VashaNatasha [74]

Answer:

y=3

B.Slope is -6 Y intercept is 0.5

Step-by-step explanation:

8 0
2 years ago
MUST ANSWER ALL <br>i need help asap will give 15 points!!<br>can you please help?
Brrunno [24]

the first answer is D and the second is C

Step-by-step explanation:

The first question you just move to the next point the second a translation doesn't mirror it but it does move it so its C because it slides

5 0
3 years ago
Plsplsplsplspsplsplsplsplsplsplspslpslpls
Norma-Jean [14]

Answer:

X= 6!

Step-by-step explanation:

7 is half of 14

6 is half of 12

Have a great day!

5 0
3 years ago
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