The answer is A. true, since the order of operations goes as follows:

Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

One way I was taught to remember it was by creating a saying out of the first letters(PEMDAS=Please Excuse My Dear Aunt Sally).

8 0

3 years ago

The width of a room is 60% of the land is 10 feet what is the area of the room

nikdorinn [45]

I believe it is 600.

8 0

3 years ago

The figure shows 2 right triangles, triangle R S T with right angle S and triangle Q R T with right angle R. The measure of angl

OverLord2011 [107]

Consider right triangle RQT. In this triangle $m\angle QRT=90^{\circ}, \ m\angle QTR=45^{circ}$ , then $m\angle RQT=180^{\circ}-90^{\circ}-45^{\circ}=45^{\circ}$ . Thus the triangle RQT is isosceles and RQ=RT=x.

Consider right triangle RST. In this triangle $m\angle RST=90^{\circ} , \ m\angle RTS=60^{\circ}$ , then $m\angle TRS=180^{\circ}-90^{\circ}-60^{\circ}=30^{\circ}$ . The leg ST is opposite to the angle of 30°, so $ST=\dfrac{RT}{2} =\dfrac{x}{2}$ .

For the right triangle RTS use the Pythagorean theorem:

$RT^2=ST^2+RS^2,\\ x^2=(\sqrt{3})^2+\left(\dfrac{x}{2}\right)^2 ,\\ x^2=3+\dfrac{x^2}{4} ,\\ \dfrac{3x^2}{4} =3,\\ x^2=4,\\ x=2$ . 

Answer: x=2 units.

3 0

3 years ago

Read 2 more answers

(x^2-6x+5)÷(x-1) solve using synthetic division

tangare [24]

I hope this helps you

5 0

3 years ago