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aleksley [76]
3 years ago
15

HELP PLEASE I WILL GIVE BRAINLIEST

Mathematics
1 answer:
gayaneshka [121]3 years ago
6 0
Out of the three options the first one is the right answer with the given numbers <span />
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5 . 3n<br><br> A. 15,30,45,60<br> B.5,15,45,135<br> C.0,15,45,135<br> D.15,45,135,405
TiliK225 [7]

Answer:

3n

Step-by-step explanation:

6 0
3 years ago
A student stands 20 m away from the foot
Ostrovityanka [42]

Answer:

Height of tree is \approx <em>15 m.</em>

<em></em>

Step-by-step explanation:

Given that student is 20 m away from the foot of tree.

and table is 1.5 m above the ground.

The angle of elevation is: 34°28'

Please refer to the attached image. The given situation can be mapped to a right angled triangle as shown in the image.

AB = CP = 20 m

CA = PB = 1.5 m

\angle C = 34°28' = 34.46°

To find TB = ?

we can use trigonometric function tangent to find TP in right angled \triangle TPC

tan \theta = \dfrac{Perpendicular}{Base}\\tan C= \dfrac{PT}{PC}\\\Rightarrow tan 34.46^\circ = \dfrac{PT}{20}\\\Rightarrow PT = 20 \times 0.686 \\\Rightarrow PT = 13.72\ m

Now, adding PB to TP will give us the height of tree, TB

Now, height of tree TB = TP + PB

TB = 13.72 + 1.5 = 15.22 \approx <em>15 m</em>

7 0
3 years ago
{3x=7y=5<br> {5x-2y=-19
Anton [14]

Answer:

(-3, 2)

Step-by-step explanation:

{3x=7y=5

{5x-2y=-19

solve....

maybe it was  3x + 7y = 5

and  5x - 2y = -19

2*(3x + 7y = 5)

7*(5x - 2y = -19)

-------------

6x + 14y = 10

35x -14y = -133

41x = -123

x = -3

y = ...

5*(-3) - 2y = -19

-15 - 2y = -19

2y = 4

y = 2

(-3, 2)

7 0
2 years ago
Find the value of x. Then, find the measure of each angle.
Talja [164]

Answer:

 

Step-by-step explanation:

 

8 0
2 years ago
Anybody Know This. ?
Ganezh [65]

Answer:

scalene acute

Step-by-step explanation:

6 0
2 years ago
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