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Sonja [21]
3 years ago
10

Helpp!!!

Mathematics
1 answer:
astraxan [27]3 years ago
5 0

9514 1404 393

Answer:

  11.9 cm

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relation between the side opposite the angle (BC) and the hypotenuse (14 cm).

  Sin = Opposite/Hypotenuse

  sin(58°) = BC/(14 cm)

  BC = (14 cm)×sin(58°) . . . . . multiply by the denominator

  BC ≈ 11.9 cm

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the empire state building is 1250 feet tall. IF an object is thrown upward from the top of the building at an initial velocity o
ss7ja [257]

Answer:

Time for the object to get h(max)    s = 1.1875 sec

h (max)  = 1272.57 feet

Down time for the object to hit the ground   =  4.25 sec

Step-by-step explanation:

The relation

h(s)  =  -  16*s²  +  38* s  + 1250    (1)

Is equivalent to the equation for vertical shot

Δh = V(i)*t  -  1/2g*t²  (in this case we don´t have independent term since the shot is from ground level. We can see in (1), the independent term is 1250 feet ( the height of the empire state building), the starting point of the movement.

The description of the movement is:

V(s)  =  V(i)  - g*s     ⇒  V(s) = 38 - 32*s

At h(max)    V(s)  =  0      38/32  = s

So the maximum height is at  s = t = 1.1875 sec

The time for the object to pass for starting point is the same

t  =  1.1875 sec

h(max) is

h(max)  = - 16* (1.1875)² +  38 (1.1875) + 1250

h(max)  =  -  22,56  +  45.13  +  1250

h(max)  =  1272.57 feet

Time for the object to hit the ground is

h(s)  =  - 1250 feet

-1250  =  - 16 s² + 38*s  + 1250

-16s² +  38s  =  0

s ( -16s + 38 )  =  0

First solution for that second degree equation  is x = 0 which we dismiss

then  

( -16s + 38 )  =  0    ⇒ 16s   =  38     s  =  38/16

s =  2.375 sec    and  we have to add time between h (max) and to get to starting point  ( 1. 1875 sec)

total time is  = 2.375 + 1.875

Total time  =  4.25 sec

4 0
3 years ago
No multiple choice just solve
marta [7]
Y=ab^x
logab=x

log7(1/343)=-3

y=7(1/343)^-3
4 0
3 years ago
-0.55 inches, 0.75 inches, 3.25 inches, -0.75 inches, and 0.7 inches.
aleksandrvk [35]

Answer:

3.25 inches, 0.75 inches, 0.7 inches, -0.55 inches, -0.75 inches

hope it help <3

4 0
3 years ago
If f(x) = 1/4x+14, then f-1(x)=​
makvit [3.9K]

Answer:

Step-by-step explanation:

-x+1/4×+14

6 0
3 years ago
Pls answer il make brainliest hurry
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Answer:

1/2

Step-by-step explanation:

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