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Archy [21]
3 years ago
6

1. How do you find the slope & y-intercept (non-proportional) from a table of x and y coordinates when using the Ti-Nspire?

Mathematics
1 answer:
Tpy6a [65]3 years ago
5 0

Answer:

I don't knwo

Step-by-step explanation:

because I suck at math

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An observer (O) spots a plane flying at a 42° angle to his horizontal line of sight. If the plane is flying at an altitude of 15
NeTakaya

Answer:

D. 22,417 feet

Step-by-step explanation:

Fine the diagram in the attachment for proper elucidation. Using the SOH, CAH, TOA trigonometry identity to solve for the distance (x) from the plane (P) to the observer (O), the longest side x is the hypotenuse and the side facing the angle of elevation is the opposite.

Hypotenuse = x and Opposite = 15,000feet

According to SOH;

sin 42^0 = \frac{Opposite}{Hypotenuse} \\\\Sin42^0 = \frac{15000}{x}\\ \\x = \frac{15000}{sin42^0}\\\\ \\

x = \frac{15000}{ 0.6691} \\\\x = 22,417 feet

Hence the distance (x) from the plane P to the observer O is approximately 22,417 feet

3 0
3 years ago
How do I convert radians to degrees? Is it pi/180 or 180/pi? I get them confused! Thanks
o-na [289]
It could be either one, depending on whether you intend to multiply or divide.

When you convert, just remember that degrees ==> less radians,
and radians ==> more degrees.  Then you can always check the
results, and make sure that you used the right conversion factor
in the right direction.
5 0
3 years ago
Read 2 more answers
A log is 20 m long, correct to the nearest metre.
Marat540 [252]

Answer:

222 fence posts

Step-by-step explanation:

Since the log is 20 m long, correct to the nearest metre and has to be cut into fence posts which must be 90 cm long, correct  to the nearest 10 centimetres, there can be x fence posts 90 cm long.

So, we have x × 90 cm = 20 m

x × 0.9 m = 20 m

x = 20 m/0.9 m

x = 222.22

x ≅ 222 fence posts

So, the largest number of fence posts that can possibly be cut from the log is 222 fence posts.

4 0
3 years ago
Can someone please help me answer this
Alexus [3.1K]

Answer:

1) a = 1.6          2) f = 0.53

Step-by-step explanation:

1) 6a = 10                      2) 48 = 90f

6a/6 = 10/6                       90f/90 = 48/90

a = 1.6                                f = 0.53

sorry i could only do the first two, i think those are right

8 0
3 years ago
What is the answer to (-6)-((-2)-5)2
nadezda [96]
( -6) - ((-2) - 5) × 2

First, simplify your brackets. / Your problem should look like: -6 - (-2 - 5) x 2
Second, simplify -2 - 5 to get -7. / Your problem should look like: -6 + 7 x 2
Third, multiply 7 × 2 to get 14. / Your problem should look like: -6 + 14
Fourth, simplify. / Your problem should look like: 8

Answer: 8

8 0
3 years ago
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