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navik [9.2K]
4 years ago
13

Right Angle Trigonometry

Mathematics
2 answers:
ra1l [238]4 years ago
5 0

Answer:

Step-by-step explanation:

BC/220=sin 60

BC=220 sin 60=220×√3/2=110√3≈190.5 ft

ira [324]4 years ago
4 0

Answer:

190.5 ft

Step-by-step explanation:

For the 60-deg angle, BC is the opposite leg. AB is the hypotenuse.

The trig ratio that relates the opposite leg to the hypotenuse is the sine ratio.

\sin A = \dfrac{opp}{hyp}

\sin 60^\circ = \dfrac{BC}{220}

BC = 220 \sin 60^\circ

BC = 190.5

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2<br>하<br>Number one over5+ 2/5 =<br>​
shusha [124]

Answer:

5.4

Step-by-step explanation:

5 + 2/5 = 27/

5

= 5 2/

5

= 5.4

7 0
2 years ago
Nicole split 7/8 pounds of candy among 4 people. What is the unit rate in pounds per person?
ANTONII [103]

Answer:

7/8 : 4 = 7/ ( 8 x 4 )= 7/32

Step-by-step explanation:

4 0
3 years ago
Which set of measurements could be the side lengths of a triangle?
AnnZ [28]
32 cm, 21 cm, 24 cm, 33cm, 18cm, 30 cm
6 0
4 years ago
Read 2 more answers
HELP PLS FOR BRAINLIEST!
igomit [66]

Answer:

Electric force = 8.20x10⁻⁸ N

Gravitational force = 3.61x10⁻⁴⁷ N

Step-by-step explanation:

1. The electric force can be found using the following equation:

F_{e} = \frac{Kq_{e}q_{p}}{d^{2}}

Where:

K: is the Coulomb's constant = 9x10⁹ N.m²/C²      

q_{p}: is the charge of the proton = 1.6x10⁻¹⁹ C

q_{e}: is the charge of the electron = -1.6x10⁻¹⁹ C

d: is the distance = 5.3x10⁻¹¹ m

Hence, the magnitude of the electric force is:

|F_{e}| = \frac{9\cdot 10^{9} N.m^{2}/C^{2}*(-1.6\cdot 10^{-19} C)*1.6 \cdot 10^{-19} C}{(5.3 \cdot 10^{-11} m)^{2}} = 8.20 \cdot 10^{-8} N                

2. The gravitational force can be calculated as follows:

F_{g} = \frac{Gm_{e}m_{p}}{d^{2}}

Where:

m_{e}: is the electron's mass = 9.1x10⁻³¹ kg

m_{p}: is the proton's mass = 1.67x10⁻²⁷ kg

G: is the gravitational constant = 6.67x10⁻¹¹ N.m²/kg²

Therefore, the gravitational force is:

F_{g} = \frac{6.67 \cdot 10^{-11} N.m^{2}/kg^{2}*9.1 \cdot 10^{-31} kg*1.67 \cdot 10^{-27} kg}{(5.3 \cdot 10^{-11} m)^{2}} = 3.61 \cdot 10^{-47} N

As we can see, the gravitational force is much less than the electric force.

I hope it helps you!                                                      

5 0
3 years ago
Can someone help please:<br> let f(x)=x^2+x <br> solve f(x-1)+f(x+1)=6
eimsori [14]

Step-by-step explanation:

f(x)=x^2+x

so

f(x-1) = (x - 1) ^ 2 + (x - 1)

= x^2 - 2x + 1 + x - 1

= x^2 - 3x

and

f(x+1) = (x + 1) ^ 2 + (x + 1)

= x^2 + 2x + 1 + x + 1

= x^2 + 3x + 2

now

f(x-1) + f(x+1) = 6

x^2 - 3x + x^2 + 3x + 2 = 6

2x^2 = 4

X = √2

brainliest pls took long enough to solve

5 0
3 years ago
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