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Yakvenalex [24]
3 years ago
10

Find x round your answer to the nearest tenth of a degree

Mathematics
2 answers:
-BARSIC- [3]3 years ago
6 0

Answer:

x = 49.4

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

tan theta  = opp /adj

tan x = 14/12

Taking the inverse tan of each side

tan ^-1 ( tan x) = tan ^-1 (14/12)

x =49.39870535

x = 49.4

snow_tiger [21]3 years ago
5 0

Answer:

x = 49.4

Step-by-step explanation:

It's right triangle , so we can use trigonometry functions

tan θ = opposite side / adjacent side

tan x = 14 / 12

Taking inverse tan of each side

\small \sf \leadsto \: tan {  }^{ - 1} (tan \: x \: ) =  tan \:  {}^{ - 1} ( \frac{14}{12}) \\

x = 49.39870535

Round nearest tenth of degree = 49.4

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Clodagh and Eva went school supply shopping together. Clodagh bought 3 packs of pencils and 5 notebooks for a total of $18. Eva
elena55 [62]

Answer:

each notebook costs $2.70

each pack of pencils costs $1.50

Step-by-step explanation:

system of equations:

let p = pack of pencils

let n = notebook

3p + 5n = 18

4p + 4n = 16.8

I used the elimination method by multiplying the first equation by 4 and the second equation by -3

4(3p + 5n = 18)  =  12p + 20n = 72

-3(4p + 4n = 16.8)  =  -12p -12n = -50.4

adding the new equations together you get:  8n = 21.6

n = 21.6/8

n = $2.70

solve for 'p':

3p + 5(2.7) = 18

3p + 13.5 = 18

3p = 4.5

p = $1.50

4 0
2 years ago
The Length of a rectangle is 5 centimeters less than twice its width . The perimeter of the rectangle is 80cm. What are the dime
borishaifa [10]
Perimeter is the sum of all a shapes sides.

with that in mind, we know a rectangle has four sides. with 2 pairs being the same.

The length as told is, 5 centimeters less than two times the width. Two times the width would be 2w and five less than that would be minus five. so the length is 2w - 5

now to find the perimeter we do two times the width + two times the length.

2w + 2(2w -5) = 80.
Distribute: 2w + 4w - 10 = 80
Add ten to both sides and combine the 2w & 4w:
6w = 90
Divide both sides by 6: w = 15.

with this we know the width is 15. to find length plug in 15 to the 2w - 5 equation.

2(15) - 5 = 30 - 5 = 25.

Slap on the units and width = 15 cm, length = 25 cm


7 0
3 years ago
Help me with this please!!!!
Olenka [21]

Answer:

opposite sides have same slope

8 0
3 years ago
In the figure, identify the types of angles in the table below .
Anna007 [38]

Answer:

∠1 and∠3 = Supplementary Angles

∠4and∠5 = Complementary Angles

∠5and∠1 = Adjacent Angles

∠2and∠3 = Supplementary Angles

4 0
3 years ago
-3 + 7.648= will mark brainest ty​
kenny6666 [7]

Answer:

The answer to the equation is: 4.648

7 0
3 years ago
Read 2 more answers
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