Help please last question and I don't understand it

Mathematics

2 answers:

zalisa [80]3 years ago

4 0

Answer:

y = 15x

Step-by-step explanation:

Part 2's answer is 15. The constant of proportionality equals k. All you need to do for part 3, then, is to substitute 15 into k for the y = kx equation.

larisa [96]3 years ago

4 0

Can you please just give me brainlist

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Read 2 more answers

What is BC ? Enter your answer in the box. units

EleoNora [17]

Answer:

Step-by-step explanation:

I'll explain in detail for those of you that want to know.

You know that since angles B and C are congruent to each other that this triangle is an isosceles triangle. Therefore, sides AB and AC are congruent to each other because that is a property of an isosceles triangle.

To solve for x, place the expressions of sides AB and AC equal to each other and solve for the unknown variable.

4x + 1 = 2x + 23

You should get that x = 11.

Substitute x = 11 into the expression for side BC to solve for the length of that side.

f(11) = 3(11) - 8

f(11) = 25

Thus, length of side BC is 25 units.

Use this way of solving for all your future questions. It's really simple :)