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Sonja [21]
3 years ago
13

What is the value of k?

Mathematics
2 answers:
brilliants [131]3 years ago
7 0
_Award brainliest if helped!
∡ZYX= 180°-115°=65°
Since it is a triangle, ∡ZYX + ∡YZX + ∡XZY = 180°
65° + (4k+5)° + (6k+10)° = 180°
10k°+15°=115°
k=10
spin [16.1K]3 years ago
6 0
I think the answer is 7 but im not positive
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calculate the side lengths a and b to two decimal places angle a is 64 angle b is 85 and line ab is 9.3? PLEASE HELP ASAP
qaws [65]
∠C = 180° - (∠A + ∠B) = 180° - (64° + 85°) = 180° - 149° = 31°
AC= \frac{9.3*sin(85)}{sin(31)} = \frac{9.3*0.9962}{0.515} =17,99 \\  \\ BC=\frac{9.3*sin(64)}{sin(31)} = \frac{9.3*0.8988}{0.515} =16,2
4 0
3 years ago
A particle is projected at a speed of 12 ms^-1 up a straight inclined track. Whilst on the
seraphim [82]

The time taken for the particle to travel more than 8 meters from the point of projection is 0.59 s.

<h3>Time of motion of the particle</h3>

The time taken for the particle to travel more than 8 meters from the point of projection is calculated as follows;

s = v₀t + ¹/₂at²

8 = 12t + (0.5 x 5)t²

8 = 12t + 2.5t²

2.5t² + 12t  - 8 = 0

solve the equation using formula method

t = 0.59 s

Thus, the time taken for the particle to travel more than 8 meters from the point of projection is 0.59 s.

Learn more about time of motion here: brainly.com/question/2364404

4 0
2 years ago
If a laptop originally costs $800, the balance due after the 10% discount and $150 gift card is applied is $.
timama [110]
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4 0
3 years ago
Read 2 more answers
help I need answer to both of the photos down below I’ll mark brainlest for both answers and give 20 points pls help
S_A_V [24]
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8 0
2 years ago
Which of the following equations has the same solution as m - (-62) = 45?
Alborosie
Well in the first equation m= -17
So you just have to substitute -17 in and see if it makes sense
like with the first equation -17 + 25 does equal 8 therefore x (in the second equation) = m (in the first)
7 0
3 years ago
Read 2 more answers
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