3 years ago

-4 1/5 + 3 2/3 + -1 2/5 =

Mathematics

2 answers:

Virty [35]3 years ago

6 0

Answer:

-29/15 or -1 14/15

Step-by-step explanation:

GalinKa [24]3 years ago

6 0

Answer:

-29/15 or mixed form -1 14/15

You might be interested in

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

Need quick answers please

Olenka [21]

Answer:

A, E, F, D

Step-by-step explanation:

Done this before

5 0

3 years ago

Using the slope formula, find the slope of the line through the given points.<br> (1,6) and (3,4)

svlad2 [7]

To find slope you do y2-y1 over x2-x1. So 4-6 is -2. And 3-1 is 2. So -2/2 is -1. The slope is -1.

7 0

3 years ago

A freight train completes its journey of 150 miles 1 hour earlier if its original speed is increased by 5 miles/hours. What’s th

Agata [3.3K]

The original speed of the train was 25mph.

7 0

4 years ago

Which equation represents the line shown in the graph below?

ivolga24 [154]

The answer is c. y=4x + 3

6 0

3 years ago