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2 years ago

Write the equation for the graph with vertex (–6, 2) and focus (–7.25, 2).

Mathematics

2 answers:

Ulleksa [173]2 years ago

7 0

I believe it is C but I am not a 100% sure

pentagon [3]2 years ago

4 0

Answer:

the answers is c. (x+6)^2=-5(y+2)

Step-by-step explanation:

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You stand a known distance from the base of the tree, measure the angle of elevation the top of the tree to be 15â—¦ , and then

gogolik [260]

Answer:

The maximum possible error of in measurement of the angle is $d\theta_1 =(14.36p)^o$

Step-by-step explanation:

From the question we are told that

The angle of elevation is $\theta_1 = 15 ^o = \frac{\pi}{12}$

The height of the tree is h

The distance from the base is D

h is mathematically represented as

$h = D tan \theta$ Note : this evaluated using SOHCAHTOA i,e

$tan\theta = \frac{h}{D}$

Generally for small angles the series approximation of $tan \theta \ is$

$tan \theta = \theta + \frac{\theta ^3 }{3}$

So given that $\theta = 15 \ which \ is \ small$

$h = D (\theta + \frac{\theta^3}{3} )$

$dh = D (1 + \theta^2) d\theta$

=> $\frac{dh}{h} = \frac{1 + \theta ^2}{\theta + \frac{\theta^3}{3} } d \theta$

Now from the question the relative error of height should be at most

$\pm p$ %

=> $\frac{dh}{h} = \pm p$

=> $\frac{1 + \theta ^2}{\theta + \frac{\theta^3}{3} } d \theta = \pm p$

=> $d\theta = \pm \frac{\theta + \frac{\theta^3}{3} }{1+ \theta ^2} * \ p$

So for $\theta_1$

$d\theta_1 = \pm \frac{\theta_1 + \frac{\theta^3_1 }{3} }{1+ \theta_1 ^2} * \ p$

substituting values

$d [\frac{\pi}{12} ] = \pm \frac{[\frac{\pi}{12} ] + \frac{[\frac{\pi}{12} ]^3 }{3} }{1+ [\frac{\pi}{12} ] ^2} * \ p$

=> $d\theta_1 = 0.25 p$

Converting to degree

$d\theta_1 = (0.25* 57.29) p$

$d\theta_1 =(14.36p)^o$

4 0

2 years ago

Can someone help me with this question ?

Juli2301 [7.4K]

Answer:

it is median

Step-by-step explanation:

because it have number in alphabetic order

4 0

1 year ago

Put these numbers in order from least to greatest.<br><br> 7, -1/4,-15/20

Agata [3.3K]

Answer:

The answer is -15/20, -1/4, 7. Thanks

8 0

2 years ago

Jim makes $480 in a 4-week period helping his grandfather on the farm, He spends an average of 15 hours a week

marin [14]

Answer:

he makes $8 an hour

Step-by-step explanation:

Since he makes $480 over 4 weeks you divide that by 4 and you should get 120. So that means he makes $120 in one week and since he works 15 hours a week you divide 120 by 15 and you should get 8

6 0

2 years ago

Read 2 more answers

PLEASE HELP! 15 POINTS! HELP ASAP! Will give brainlist

coldgirl [10]

50 miles per hour

80.5 km per hour

80,467 meters per hour

4,828,032 meters per minute

Hope this helps!! :)

5 0

2 years ago

Read 2 more answers