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jarptica [38.1K]
3 years ago
8

Solve for x: -4x +8 = 42 x =

Mathematics
1 answer:
vladimir1956 [14]3 years ago
4 0
The answer for x is -8.5
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Some farms use a hay elevator to move bales of hay to the second story of a barn loft. The bottom of the elevator is 9 meters fr
-Dominant- [34]

Answer: The height is 6.07 meters

Step-by-step Explanation: The distance between the elevator and the bottom of the barn is given as 9 meters. Also for the hay elevator to move bales of hay to the second story of the barn lift it makes an angle of elevation of 34 degrees with the ground. With these we can derive a right angled triangle with the reference angle as 34 degrees, the side facing it which is the height or h (opposite) is yet unknown, and the side between the reference angle and the right angle (adjacent) is 9. We shall apply the trigonometric ratio as follows;

Tan 34 = opposite/adjacent

Tan 34 = h/9

0.6745 = h/9

0.6745 x 9 = h

6.0705 = h

Therefore the approximate height of the barn to the ground is 6.07 meters

3 0
3 years ago
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Find the perimeter of the rectangle.
algol13
All you have to do is find the length of the sides using the distance formula and then add the lengths together to find the perimeter
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3 years ago
A pebbe falls into a pond. From the surface, it descends atf a rate of two feet get around. Where us the pebble in relation to t
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The pebble slowly falls and it's in the middle of the surface and bottom
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3 years ago
Given △ABC≅△JKL, m∠B=55°, and m∠L=25°, what is the measure of ∠J?
8_murik_8 [283]
For the answer to the question above, 
<span><J = 100
</span><span>because they are similar they have the same angles
</span>The two triangles are similar, so they must have corresponding angles. Thats one way to define similarity, it can dilate (zoom in /zoom out) , but the angles are preserved. You can also define similarity in terms of the proportionality of the sides. 

"Given △ABC≅△JKL"

The order of the letters counts. 
<A = <J
<B = <K
<C = <L

<span>now you can draw two generic triangles, which have the same three angles, but label the angles accordingly, so they match up.
</span>
<span>then by correspondance we can fill in
</span>nightowlthe third angle can be found by the fact that 
the three angles must add up to 180.
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3 years ago
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Carl is conducting a survey for the school paper, he finds that 7 students have no pets, 15 have one pet, and 9 have at least tw
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I would say around 14%
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3 years ago
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