Mr. ruiz writes the expression 5 x (2 + 1) to the power of 2 ^ by 3 on the board chelsea says the first step is to evaluate 1 to the power of 2 explain chelsea’s mistake. then evaluate the expression

Her mistake is that she is doing PEDMAS wrong.

Step-by-step explanation:

In PEDMAS, the first step would be to do the parentheses or groupings. However, Chelsea went straight to step two- exponents.

c

step-by-step explanation:

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)