All categories

3 years ago

Area of a trapezoid please help

Mathematics

1 answer:

Lena [83]3 years ago

5 0

Answer:

A= 30

Step-by-step explanation:

A= a+b over 2

h= 5+15 over 2 times that by 3 to get 30

You might be interested in

Help please simplify: 4(3b)

Aleonysh [2.5K]

Answer: 12b

Step-by-step explanation: you multiply 4 by 3 but keep the b

8 0

3 years ago

Read 2 more answers

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

What is the product of 3.4 × 10−14 and 1.8 × 10^28?

DENIUS [597]

None of the answer matches the correct ans
(3.4×10-14)(1.8×10^28)
20(1.8×10^28)
3.6×10^29

8 0

3 years ago

(6) Find a and b as well as the ratio c:d in the<br> figure below.

polet [3.4K]

Answer:

i have a Similar question I’m stuck on, just remember z rule, vertically opposite etc.

6 0

3 years ago

At a cookout, Mrs. Crawford makes

dedylja [7]

Answer:

I love cookouts I eat chicken nuggets and chicken yummy so delicious

7 0

2 years ago