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2 years ago

Who knows how to do this ?

Mathematics

1 answer:

Montano1993 [528]2 years ago

8 0

Answer:

hello again

Step-by-step explanation:

i think

$\frac{10}{19}$

have a nice day

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In a lilac paint mixture , 40% of the. Mixture is white paint ,20%is blue and the rest red how many cups of red paint are used

fredd [130]

Answer: 40%

Step-by-step explanation: all percents add to 100%, so 40%+20%=60%, and 100%-60%=40%

4 0

2 years ago

A person on a runway sees a plane approaching. The angle of elevation from the runway to the plane is 11.1° . The altitude of th

Gnoma [55]

Answer:

The horizontal distance from the plane to the person on the runway is 20408.16 ft.

Step-by-step explanation:

Consider the figure below,

Where AB represent altitude of the plane is 4000 ft above the ground , C represents the runner. The angle of elevation from the runway to the plane is 11.1°

BC is the horizontal distance from the plane to the person on the runway.

We have to find distance BC,

Using trigonometric ratio,

$\tan\theta=\frac{Perpendicular}{base}$

Here, $\theta=11.1^{\circ}$ ,Perpendicular AB = 4000

$\tan\theta=\frac{AB}{BC}$

$\tan 11.1^{\circ} =\frac{4000}{BC}$

Solving for BC, we get,

$BC=\frac{4000}{\tan 11.1^{\circ} }$

$BC=\frac{4000}{0.196}$ (approx)

$BC=20408.16$ (approx)

Thus, the horizontal distance from the plane to the person on the runway is 20408.16 ft

8 0

2 years ago

Please help meeeeee :///

eimsori [14]

Wouldn't all the angles equal 180? We've been trying to learn these but I think so. Subtract both numbers by 180 and it should be the answer. Sorry if it's wrong but I'm not sure. I kinda hope this helps you any

5 0

2 years ago

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Factor by Grouping:<br> 8x²+12x+2xy+3y

Yuliya22 [10]

Answer:

(2x +3) (4x +y)

Step-by-step explanation:

refer the image

3 0

1 year ago

The length of a rectangle is 2 feet more than 5 its width. The perimeter is 52 feet. Find the dimension of the rectangle

Ber [7]

Answer: The length is 22 feet. The width is 4 feet.

Step-by-step explanation: Create an equation for the length: 2+5w=52.

Now combine the two sides to get 4+10w=52. Plug in some numbers that seem reasonable. I started with 4, checked my work and found that it was right. This problem is all about trial and error.

So, 4+10(4)= 44. Make sure to remember the width, so add 4 for each side: 44+8. 44+8=52. Hope this helps :)

4 0

2 years ago

Read 2 more answers