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BlackZzzverrR [31]
3 years ago
6

Plzzzzzzz help me 

Mathematics
1 answer:
Andru [333]3 years ago
8 0
When x varies inversely with y then you'll have
xα1/y
x=k/y where k is the proportionality constant
when x=8. y=10. k=?
8=k/10
make k the subject of the formula
k=10×8
k=80.

When x=6. y=?.k=80
6=80/y
Make y the subject of the formula
y=80/6
y=40/3

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Dafna11 [192]

Answer:

Step-by-step explanation:

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4 0
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Read 2 more answers
An engineer stands 200 feet from a tower and sights the top of the tower at a 45° angle of elevation. Find the height of the tow
Alik [6]
Drawing a diagram of a triangle may be helpful. The hypotenuse is irrelevant, but the vertical leg and the horizontal leg are useful. Since we know the engineer is looking up at a 45 degree angle from a distance of 200 feet, we can label the vertical leg the "opposite", since it is on the opposite side of the angle we are given. The horizontal leg then becomes the "adjacent". You can then use trigonometry to solve for the opposite. 
The options are:
sin(theta)= opposite/hypotenuse
cos(theta)= adjacent/hypotenuse
tan(theta)= opposite/adjacent
Since we don't care about the hypotenuse, the last equation is the one to use. The angle we are given can be substituted in for theta:
tan(45)= x/200
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x= 323.955038 feet
6 0
3 years ago
Use the Parabola tool to graph the quadratic functions.
OLEGan [10]

Step-by-step explanation:

HOPE IT WILL BE HELPED U DEAR FRIEND

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Anni [7]

Answer:

186,624 I think

Step-by-step explanation:

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12*4=48

48*9=432

432^{2}= 186,624!

8 0
3 years ago
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