Answer:
He has to divide 12/3 first
Step-by-step explanation:
it’s like pemdas you have to do that first then you go on to added the 3+ whatever 12/3 is
I am confused with regards to the unit. You wrote cm cubic inches. So, I'll just use cubic unit.
Given:
Volume of rectangular pyramid is 125 cubic unit
Volume of rectangular pyramid = (length * width * height) ÷ 3
Volume of rectangular prism = length * width * height
The main difference between the two volumes is the present of 3.
Volume of rectangular prism = Volume of rectangular pyramid * 3
V = 125 cubic unit * 3 = 375 cubic unit
2x + 5 3x + 5 x + 1
--------------- - ----------------- - -------------------
x(x - 3) x (x+3)(x-3) (x +3)(x - 3)
(x + 3) (2x + 5) - (3x + 5) - x ( x + 1)
= ---------------------------------------------------------
x (x+3)(x-3)
2x^2 +6x +5x + 15 -3x - 5 -x^2 - x
= -----------------------------------------------
x (x+3)(x-3)
x^2 + 7x + 10
= --------------------
x (x+3)(x-3)
(x +5)(x+2)
= --------------------
x (x+3)(x-3)
or
(x +5)(x+2)
= --------------------
x^3 - 9
answer is A. first one
Answer:2/3
Step-by-step explanation The fractions 2/3 and 2/5 have the same numerator. The denominator 3 in the fraction 2/3 means that the unit has less parts, making the parts larger. Therefore, 2/3 is larger than 2/5 . The larger the denominator the smaller the fraction.
Answer: 90° , 60° and 30° .
Step-by-step explanation:
Given : In a right triangle with a leg of 4 units and a hypotenuse of 8 units.
One angle should be 90°. (A right triangle has a 90° angle.)
Let the given leg is the side opposite to the angle 
in the triangle.
Then by trigonometry , we have
[Sine of an angle is the ration of the side opposite to the angle and the hypotenuse of a right triangle.]
Also , 
Let x be the measure of the third angle.
BY Angle sum property of triangle , we have
Therefore , the measures of all angles in the triangle : 90° , 60° and 30° .
