Answer:
Step-by-step explanation:
Here you go mate
Step 1
n' + 5n™ + 5n 2 equation
Step 2
n' + 5n™ + 5n 2 substitute n=-3
-3+(5)(-3)5(-3)2
step 3
-3+(5)(-3)5(-3)2 add and multiply
answer
27
Answer:
133.96 meters squared
Step-by-step explanation:
To calculate the area of a circle, simply multiply the radius squared, by pi.
A = pi x r^2
A = pi x 6.53^2
A = pi x 42.6409
A = 133.9603382
The area of the circle is approximately 133.96 meters squared.
Hope this helps! :)
Answer: a
Step-by-step explanation:
Multiply 1/6 by 6 to get 1 for a unit rate, so then multiply 3/8 by 6 to make it equal. *you cannot multiply each fraction by different numbers* 3/8 times 6 is 18/8, so that can reduce to 2 and 2/8 also known as 2 and 1/4. the unit rate is 2 and 1/4 jn an hour.
Height of the wall is 27 m.
<u>Explanation:</u>
Let the height of the wall = h
Length of the ladder = 9 m
Angle of elevation = 60°
Ladder rests at 9 m below a vertical wall.
So, length of the wall upto which the ladder rests = h - 9
We know,
Cos Ф = base/ hypotenuse
cos 60° = length of the ladder / height of wall upto which the ladder rests
So,
h - 9 = 18
h = 27
Therefore, height of the wall is 27 m
