Question

HELP WITH 3 MATH QUESTIONS FAST PLEASE

Answer 1

Part A: Write an algebraic expression for 6 more than 7 times a number.

Part B: What is another way this expression can be read?

The surface area of a cone with radius r units and slant height s units is shown below:

Surface area = 3.14(rs + r2)

Part A: If r = 6 units and s = 4 units, write an expression that can be used to calculate the surface area of the cone.

Part B: What is the surface area of the cone? Show your work.

An expression is shown below:

3(m + 5 + 9m)

Part A: Write two expressions that are equivalent to the given expression.

Part B: Show that one of your expressions in Part A is equivalent to the given expression using algebraic properties. Explain which properties you used.

Part C: Show that your other expression from Part A is equivalent to the given expression by substituting a number for m.

Answer 2

Part A. If we say that the "number" is x, then we would multiply x by 7 and then add 6. You know how to write that?

Answer 3

so any number say 3 know as x is being multiplied by seven + 6 right?

Answer 4

Yes, that would be it.

Answer 5

i get part b of that question

Answer 6

it would be something like this right? (7 + 6)x

Answer 7

The part A would be 7x+6. The way to re-write that would depend on what "re-write it" refers to. It could mean to explain what the equation is. But (7+6)x is equal to 13x and is not a way to re-write it.

Answer 8

ok for question 2 can you explain it to me?

Answer 9

here is the question again:


The surface area of a cone with radius r units and slant height s units is shown below:

Surface area = 3.14(rs + r2)

Part A: If r = 6 units and s = 4 units, write an expression that can be used to calculate the surface area of the cone.

Part B: What is the surface area of the cone? Show your work.

Answer 10

A: re-write the equation with 6 for r and 4 for s.
B: Solve the equation in A.

Answer 11

got it thx

Answer 12

Nice, good job :)