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user100 [1]
3 years ago
11

Write the example about adding and subtracting decimals

Mathematics
1 answer:
Misha Larkins [42]3 years ago
5 0
0.5 + 1.8 = 2.3

12.3 - 8.4 = 3.9
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Is e just an algebraic expression or is it Euler's number (2.718...)?

If e is an algebraic expression then there it is

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Help please I forgot my notes<br>Need answers asap- it's due in a few hours<br>​
ahrayia [7]

I'm not to sure if I know the other ones but number 12th Is 6

Step-by-step explanation:

Since the two lines intersect at point Q(x,y) the x & y values of both lines must be equal at point Q. so 3x+14=7x-10. Solving for x yields x = 6.

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Advocard [28]

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jwruaijoii9auhyahd9i3u

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3 years ago
Please solve and show your work
yaroslaw [1]

Answer:

791.28

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5 0
2 years ago
Read 2 more answers
Two towers face each other separated by a distance = 15 m. As seen from the top of the first tower, the angle of depression of t
Crazy boy [7]

Answer:

Height of second tower = 17.32m

Step-by-step explanation:

I have attached a diagram depicting the question.

From the diagram, The first tower is depicted by side AEB and the second tower CD.

While d is the distance that separates the two towers and it's given as 15m.

Now, since the angle of depression of the second tower’s base is 60°, then for triangle BAC. Angle C = 60°.

Thus; using trigonometric ratios;

tan 60° = AB/AC.

This gives; AB = d*tan 60°

Similarly, for the triangle BED, BE = d*tan 30°

Since, AE = CD, thus ;

CD = AB − BE

CD = d (tan 60° − tan 30°)

CD = 15(1.7321 − 0.5774)

CD = 15 × 1.1547

CD ≈ 17.32 m.

So, height of second tower = 17.32 m

7 0
3 years ago
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