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ss7ja [257]
3 years ago
10

You would 'b' be in '-20= -8(4)+b'

Mathematics
1 answer:
Volgvan3 years ago
7 0
It’s -11 becuase i just took the test and got it
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A kite with a string 50 meters long makes an angle of elevation of 58o with the ground, assuming the string is straight, how hig
Sunny_sXe [5.5K]

An angle of elevation of 58 degrees with the ground means that the angle started at the x-axis and terminates on the first quadrant region through a counter clockwise direction. Imagining a triangle, the string of the kite becomes the hypotenuse, the angle 58 degrees is the angle between the hypotenuse and the ground, and the height of the kite is the side opposite to the angle.

Therefore, we can calculate for the height of the kite using the sin function:

sin θ = opposite side / hypotenuse

sin 58 = opposite side / 50 m

opposite side = 50 m * sin 58

opposite side = 42.4 m

<span>Therefore the kite is about 42.4 m above the ground.</span>

8 0
3 years ago
Find the values for a, b, and c for this quadratic equation. -3x^2 - 5x = 1​
Ne4ueva [31]

Answer:

a= -3, b= -5, c= -1

Step-by-step explanation:

Quadratic Equation: ax^2+bx+c=0

Hope this helps!

4 0
2 years ago
Read 2 more answers
What is the difference of a number (n) from 4??
tia_tia [17]
The algebraic expression would be 4 - n, I believe.
6 0
3 years ago
PLZ HELP!!!!<br> I will mark u the brainyest!!!answer only 1-4 questions!!
marishachu [46]
1)180
2)79
3)9,100
4(:)540
8 0
2 years ago
3/x^2-1 - 2(x+3) = 5/x+1
weqwewe [10]

Answer:

X=1.132589

Step-by-step explanation:

If im correct the answer would be x=1.132589

3

x2−1

−2(x+3)=

5

x+1

3

(x+1)(x−1)

+−2x−6=

5

x+1

Multiply all terms by (x+1)(x-1) and cancel:

3+(−2x−6)(x+1)(x−1)=5(x−1)

−2x3−6x2+2x+9=5x−5(Simplify both sides of the equation)

−2x3−6x2+2x+9−(5x−5)=5x−5−(5x−5)(Subtract 5x-5 from both sides)

−2x3−6x2−3x+14=0

(Use cubic formula)

x=1.132589

And dont forget to check your answer

3 0
2 years ago
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