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sasho [114]
2 years ago
7

I HAVE 2 MORE QUESTIONS AFTER THIS 20 POINTSSS!

Mathematics
2 answers:
zmey [24]2 years ago
7 0

Answer:

4.08*10^4

Step-by-step explanation:

ioda2 years ago
3 0

Answer:

Step-by-step explanation:

you have to do 49000 - 8200 which is 40800, and in scientific notation, that is 4.08 * 10^4

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Jack looks at a clock tower from a distance and determines that the angle of elevation of the top of the tower is 40°. John, who
zmey [24]

Answer:

18.7939 m

Step-by-step explanation:

-Let x be the distance between John and clock tower.

-Let y be the vertical distance from the eyes of the two men  standing to the top of the clock tower.

#Taking the right triangle ACD:

\Tan \ theta=\frac{Perpendicular \ Height}{Base}\\\\Tan \ 60\textdegree=\frac{y+1.5}{x}\\\\y=x \ Tan \ 60\textdegree -1.5

#Taking the right triangle ABD:

\Tan \ theta=\frac{Perpendicular \ Height}{Base}\\\\Tan \ 40\textdegree=\frac{y+1.5}{x+20}\\\\y=(x+20)\ Tan \ 40\textdegree -1.5

#We equate the two yo solve for x and y;

(x+20)\ Tan \ 40\textdegree -1.5=x\ Tan \ 60\textdegree -1.5\\\\(x+20)\ Tan \ 40\textdegree=x\ Tan \ 60\textdegree\\\\0.8391x+16.7820=1.7321x\\\\x=18.7939

Hence, John's distance from the tower's base is 18.7939 m

8 0
3 years ago
Select the equation of the line that passes through the .5,7 and is perpendicular to the line x equals 4
lions [1.4K]
Hello!

To be perpendicular to x = 4, the line must be y = something. This eliminates answer choices #2 and #4. Also, to pass through the point (.5, 7), the line must be y = 7.

So answer choice #3.

Hope this helps!! Let me know if you have ANY questions.
8 0
3 years ago
In a trapezoid with bases of lengths a and b, a line parallel to the bases is drawn through the intersection point of the diagon
mote1985 [20]

if we name that part x, then we can say

1/x = 1/a + 1/b

3 0
3 years ago
An airplane travels at 280 miles per hour. how far in miles will the airplane travel in 20 minutes?
Romashka-Z-Leto [24]

Answer:

93.33 miles

Step-by-step explanation:

60 min/ 20 min = 3

280/3 = 93.333333

8 0
3 years ago
Read 2 more answers
Please help and fast
Oksana_A [137]

Answer:

216 in squared

Step-by-step explanation:

using the formula, a cube has six sides so 6 squared is 36 times 6 equals to 216

4 0
3 years ago
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