Roopa and Noor try to simplify the expression 18 x 4 the power of 2 + (9-3) the power of 2. Roopa simplifies the expression and gets 360. Noor simplifies the expression and gets 324. Which student is correct? What error did the other student make?

Noor was correct while roopa was wrong. Roopa mistakenly squared both the value of 9 and 3 before taking the difference instead of subtracting 3 from 9 first and then squaring the result according to Noor.

Step-by-step explanation:

Noor simplifies the expression as thus;

Looking at the expression,

18×4²+(9-3)²

Using BODMAS, we will solve the one in the bracket first to have;

= 18×4² +6²

Afterward, we simplify the product (multiplication)

(18×4²)+6²

= 288+6²

= 288+36

Then finally we will add to have 324.

This gives the correct answer because the BODMAS rule was followed.

Roopa mistakenly simplify the expression as thus by squaring both values of 9 and 3 to give;

18×4²+(9²-3²)

18×4²+(81-9)

= 18×4²+(72)

= 288+72

= 360

after going and makeing graphs i would go with a,

there is nothing that is matches the graph. if there was i would show you. but therefore my answer is a.

hope i

-lavira: )

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.