ALGEBRA NATION SECTION 2 TOPIC 1: CHECK YOUR UNDERSTANDING

1. Eric, emily and noah were all solving the problem 3(x+2)-9=2x + 3. eric said the first step should be the distributive property, emily said the first step should be the addition property of equality, and noah said the first step should be the subtraction property of equality. who was correct?

A. Eric, you have to get rid of parenthesis first

B. Emily, you need to add the 9 to both sides to combine like terms

C. Noah, you need to subtract 3 from both sides to get the constant terms together

D. They were all correct

mark brainliest

step-by-step explanation:

2 tens + 6 ones

1 ten + 16 ones

0 tens + 26 ones

answer: when you burn wood, the carbon reacts with the oxygen in the air to create ash and smoke. that is a permanent change you cannot undo that.

step-by-step explanation:

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).