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3 years ago

What is the value of x in the equation 5(2x - 7) = 15x -10

Mathematics

1 answer:

ASHA 777 [7]3 years ago

3 0

10x - 35 = 15x - 10
-35 = 5x -10
-25 = 5x
-5 = x
The value of x is -5.

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DaniilM [7]

3(x + 7) = 9(x - 1)
3(x) + 3(7) = 9(x) - 9(1)
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4 0

3 years ago

Which table shows a function that is decreasing only over the interval (–1, ∞)?

alexgriva [62]

Answer:0,1

Step-by-step explanation:

1 is the number in the x column that is in the same area as 0 they r vertical to each other

6 0

2 years ago

I would like help ASAP I would like help to write this in a paragraph.

MrRa [10]

Surface area is the area that is on the outside of a figure and will be used when you have to cover something, but a volume is an area inside an object and is used in finding the amount someone can hold within something else.

8 0

3 years ago

From the top of a vertical cliff 50 m high, the angle of depression of an object that is level with the base of the cliff is 70°

Svetlanka [38]

Answer:

The distance of the object from the base of cliff is 18.24 meters

Step-by-step explanation:

Given as :

The height of the vertical cliff = h = 50 meters

The distance of the object from the base of cliff = x meters

Let The angle of depression of object that level with cliff base = Ф = 70°

Now, from figure

Tan angle = $\dfrac{\textrm perpendicular}{\textrm base}$

I.e TanФ = $\dfrac{\textrm AB}{\textrm OA}$

Or, TanФ = $\dfrac{\textrm h}{\textrm x}$

Or, Tan 70° = $\dfrac{\textrm 50 meters}{\textrm x meters}$

Or, 2.74 = $\dfrac{\textrm 50}{\textrm x}$

∴ x = $\dfrac{\textrm 50}{\textrm 2.74}$

I,e x = 18.24 meters

So, The distance of the object from the base of cliff = x = 18.24 meters

Hence,The distance of the object from the base of cliff is 18.24 meters Answer

5 0

3 years ago

If I work from 4:50 p.m. to 10 o'clock p.m. how many hours did I work

aev [14]

If you worked from 4:50 pm to 10:00 pm then you worked 5 hours 10 minutes

4 0

3 years ago