3 years ago

Can someone help me and give me an explanation?

Mathematics

1 answer:

e-lub [12.9K]3 years ago

8 0

Answer: I was made for this question the answer is: w=8

Step-by-step explanation:

First you do: 150-30 since you want to cancel it out.

Then: 120/15=8

The answer:8

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4 years ago

Alana spent $21 of her $150 paycheck on a gift. What percent of her paycheck was spent on the gift

Helga [31]

21/150=.14 or 14%. This is a good answer.

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4 years ago

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Find the domain of (x,y) → (x + 7, y - 9) with R = {(-3, -14)

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

x+7=-3

x=-3-7=-10

x=-10

y-9=-14

y=-14+9

y=-5

Domain of (x,y)=(-10,-5)

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3 years ago

Determine the exact x-intercepts of y = (x + 4) - 7.

Maslowich

The x-intercept of a graph is the point where the graph crosses the x-axis

<h3>(a) Graph</h3>

The function is given as:

$y = (x + 4)^2 - 7$

See attachment for the graph of the function.

From the attachment, the approximated x-intercepts are -7 and -1

<h3>(b) Type of solution</h3>

From the attached graph, we can see that the curve crosses the x-axis at non-terminating decimals

Hence, the solutions of the equation are irrational.

<h3>(c) The vertex</h3>

This is the minimum or the maximum point of a parabola.

From the attached graph, the minimum point is at (-4,-7)

Hence, the coordinates of the vertex of the parabola is (-4,-7), and it is exact (not approximated)