To square a number means to multiply it by itself. So 9 squared would be:
9x9
Which is
81
I hope this Helps!
1.7(j-2)
Hope it helped :)
Answer:
the answer is 29
Step-by-step explanation:
a^2 + b^2 = c^2 (btw ^ means to the power)
a and b are the legs. c is the hypotenuse
21^2 + 20^2 = c^2
441 + 400 = 481
then we have to square it.
the square root of 481= 29.
btw the hypotenuse is always going to be bigger than the legs.
hope it helps!! btw it is right!
There is a trig identity called the sum of 2 angles for sin its<span>
sin(a+b)=sin(a)cos(b)+cos(a)(sin(b)
</span>
You will need to use it. So in your question split the 4x in 2 equal parts 2x and 2x
<span>
</span><span>sin(4x)=sin(2x+2x)
</span>Now using the expansion above you will get
<span>sin(2x+2x)=sin(2x)×cos(2x)+cos(2x)×sin(2x)
</span>And it will simplify to
<span><span>2sin(2x)cos(2x)
I hope this helps you! Good luck :)</span></span>
The lateral surface area of the Pyramid will be 850547 square feet.
<h3>What is an area?</h3>
The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the circle in a two-dimensional plane is called as the area of the circle.
The lateral surface area will be calculated as:-
A = 
A = 
A = 750 √321525 + 750 √321525
A = 150 √√321525
A = 1500 x 567.031
A = 850547 square feet
Therefore the lateral surface area of the Pyramid will be 850547 square feet.
To know more about an area follow
brainly.com/question/25292087
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