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Ann [662]
3 years ago
11

Find the degree of the angles whose sine is -1/2 (that's a fraction)

Mathematics
1 answer:
Akimi4 [234]3 years ago
8 0
I think is first one
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What is the area of 'P'.​
AVprozaik [17]

Answer:

12 square centimetres

Step-by-step explanation:

6*2=12

6 0
4 years ago
An airplane is traveling at a speed of 240 mph with a bearing of 110° the wind velocity is 56 mph at a bearing of 325° what are
Anni [7]
1 answer · Mathematics
Best Answer
"Bearing" is the relative position of an object outside the plane compared to the position of the plane.
Heading the the direction the nose of the plane is pointing
Course is the direction that pilot wants the plane to go.
And I am not sure what you call the wind direction other than direction. Wind direction is always the direction the wind is blowing from.

An airplane is traveling at a speed of 240 miles/hour with a HEADING of 110°

If the plane is heading 110 and the wind is blowing from 325
325 - 110 = 215.
215-180 = 35.

you have a "quartering tail wind." Ground speed will be in excess of the airspeed. True course will be south if the indicated heading.

Tailwind component = 56 cos (35) = 46
cross wind component = 56 sin (35) = 32
course deviation = tan^-1(32) / (286) = 6 degrees
116 degrees at 286 kts

this is actually a slight bit of shorthand.
slightly more precise is C^2 = 286^2 + 32^2
C = 288
and you could have used the law of cosines.
8 0
3 years ago
Rachel was playing a game on her computer out of 20 questions she answered 7 correctly at this rate how many questions should ra
Zanzabum

Answer:

56

Step-by-step explanation:

(7/20)=(x/160)

160(7/20)=x

x=56

6 0
3 years ago
Round to the nearest hundred and then add the rounded numbers. 452+49
SVEN [57.7K]
The answer is 100 because 452 is rounded to 500 and 49 is rounded to 100 and that equals to 600 .
8 0
3 years ago
f(x) = 3x^2+12x+5f(x)=3x 2 +12x+5f, left parenthesis, x, right parenthesis, equals, 3, x, squared, plus, 12, x, plus, 5 What is
LenaWriter [7]

Answer:

Discriminant = 84

The polynomial has two real distinct roots

Step-by-step explanation:

Given: f(x)=3x^2+12x+5

To find: discriminant of the given function and number of distinct real zeros

Solution:

For a polynomial f(x)=ax^2+bx+c , discriminant is given by D=b^2-4ac

If D>0, then the polynomial has two real and distinct roots.

If D=0 then the polynomial has two real and equal roots.

If D<0 then roots are not real.

Here, in f(x)=3x^2+12x+5

a = 3, b = 12 and c = 5

D=(12)^2-4(3)(5)=144-60=84

As D > 0, the polynomial has two real distinct roots.

4 0
3 years ago
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