Step by step
∠ 1 and ∠ 2 ∠1 and ∠2 are supplementary angles. m ∠ 1 is 4 y + 7 , and m ∠ 2 is 9 y + 4 m∠1 is 4y+7, and m∠2 is 9y+4. find m ∠ 2

m∠2 = 121°

Step-by-step explanation:

Supplementary angles mean angles that add to 180°.

Since ∠ 1 and ∠ 2 are supplementary:

∠1 + ∠2 = 180°     Substitute using their equations

4y + 7 + 9y + 4 = 180°    Combine like terms

13y + 11 = 180°

13y = 180 - 11     Subtract 11 from each side

13y = 169

y = 169/13      Divide each side by 13

y = 13

Use y=13 and substitute into the equation for ∠ 2

m∠2 = 9y + 4

m∠2 = 9(13) + 4      Multiply 9 and 13

m∠2 = 117 + 4     Add

m∠2 = 121°       Final answer

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

a thesis statement is not a fact or a question

step-by-step explanation:

a thesis statement is a topic it is not a fact or a question