Answer:
1
Step-by-step explanation:
note that i = 
, thus
i² = ( )² = - 1
= i² × i² = - 1 × - 1 = 1
Answer:
She gave 1/3 of the cookies to her neighbor ... Of the cookies that were left, Jane gave 3/4 to her parents, and she ate the rest. ... How many cookies did Jane's parents get if she gave them 3/4 of 16?
Step-by-step explanation:
Hello there!
To make x the subject of the formula, we need to start by doing "Cross multiply"
(y)(x) = a
yx = a
Solve for x
Divide both sides by y
yx/y = a/y
x = a/y
Good luck with your studies!
Answer:
m=42
Step-by-step explanation:
m+(-14)=28
m-14=28
m=28+14
m=42
Answer:
Step-by-step explanation:
A trapezoid is a 4-sided figure with one pair of parallel sides. For example, in the diagram to the right, the bases are parallel. To find the area of a trapezoid, take the sum of its bases, multiply the sum by the height of the trapezoid, and then divide the result by 2, The formula looks like this:
area_trapezoid1.gif or area_trapezoid2.gif
Where b1.gif is base1.gif, b2.gif is base2.gif, h.gif is height and · means multiply.
Each base of a trapezoid must be perpendicular to the height. In the diagram above, both bases are sides of the trapezoid. However, since the lateral sides are not perpendicular to either of the bases, a dotted line is drawn to represent the height.
In Examples 1 and 3 below, the height is a side of the trapezoid since it is perpendicular to the base. In Example 2, the lateral sides are not perpendicular to the base, so a dotted line is drawn to represent the height.
