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Crazy boy [7]
2 years ago
5

A car traveled 133 miles in 4 3/4 hours. What was the cars average speed in miles per hour?

Mathematics
1 answer:
nirvana33 [79]2 years ago
6 0

4 3/4 = 19/4

 

133/(19/4) = 133(4/19) = 1197/19 = 63 mph

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What is the value of X in the triangle below to the nearest degree? The triangle is not drawn to scale. I selected an answer but
11Alexandr11 [23.1K]

Answer:

x = 25

Step-by-step explanation:

To find the value of x we use the formula:

tan x° = opposite side /adjacent side

Opposite Side = 8

Adjacent Side = 17

tan x° = 8/17

tan x° = 0.4705882352941

Tan^{-1} of 0.4705882352941

x° = 25

4 0
4 years ago
The area of a triangle is<br> A = bh/2<br> What would be the formula for h?
babymother [125]

Answer:

h = 2A/b

Step-by-step explanation:

multiply both sides by 2

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8 0
3 years ago
Consider the equation 1+n+6/n+1=4/n-2
Inga [223]
A. The LCD is (n+1)(n-2)

B. n = -1, n = 2

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Hope that helps.

8 0
4 years ago
Read 2 more answers
A 12-meter ladder leans against a building forming a 30° angle with the building.
KatRina [158]

Answer:

will show you two (2) ways to solve this problem.

A diagram is needed to see what is going on....

 

Without loss of generality (WLOG)

The wall is on the right. The ladder leans against the wall

with a POSITIVE slope, from SW to NE (quadrant 3 to quadrant 1).

The measure from the bottom of the ladder to the wall is 6.

 

 

Option 1:

 

The ladder, ground and wall form a right triangle.

 

The hypotenuse (ladder) is 14 feet.

 

 The bottom of the ladder is 6 feet from the wall,

  so the base of this right triangle is 6 feet.

 

The top of the ladder to the ground represents

the missing leg of the right triangle.

 

The pythagorean theorem applies, which says

 6^2 + h^2 = 14^2   where h is the height

                                 of the top of the ladder to the ground

 

36 + h^2 = 196

 

 h^2 = 196 - 36

 

h^2  = 160

 

h = sqrt(160)

 

   = sqrt(16 * 10)

 

    = sqrt(16)* sqrt(10)

 

    = 4*sqrt(10) <--- exact answer

 

    = 4 * 3.16227766016838....

 

     = 12.64911....

 

    12.65 <--- rounded to 2 digits as directed

 

----------------------------------------------

Option #2: using trig

 

With respect to the angle formed by the bottom of the

ladder with the ground

  cos T = 6/14 = 3/7  

 T = inverse-cosine(3/7) = 64.623006647 degrees

 

 sin(64.623006647) = h/14

 

 h = 14*sin(64.62300647) = 12.6491106 <--- same answer                        

hope this helps

Step-by-step explanation:

5 0
3 years ago
If x = 6 and y=5, find y when x = 3
Annette [7]

Answer:

If x=6 and y=5 and we are to find y when x=3.

it will be 6=5,3=y....

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This is the answer I hope it helps

8 0
3 years ago
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