In 36 years, amy will be 3 times as old as she is right now. how old is she now?

Answers

Answer 1

Answer: She would be 12 years old as 12•3 is equal to 36 years. (:

Answer 2

Answer: She would be 12 because 12•3=36

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solve by substitution ( show steps)

y=3x+2

3x-y=2

Answers

$\left\{\begin{array}{ccc}y=3x+2\n3x-y=2\end{array}\right\n\nsubstitute\n\n3x-(3x+2)=2\n3x-3x-2=2\n-2=2-FALSE\n\nAnswer:No\ solution$

$y=3x+2\n 3x-y=2\n\n 3x-(3x+2)=2\n 3x-3x-2=2\n -2=2\n x\in\emptyset \Rightarrow y\in\emptyset$

Which of the following best describes the base of a pyramid?A. It can be any polygon.
B. It is a circle.
C. It must be a square.
D. It is a triangle.

Answers

Answer:

A. It can be any polygon.

Step-by-step explanation:

A pyramid is a polyhedron with a base, which can be any polygon, but is most often a square.

When the base is a triangle, the pyramid has a total of four faces.

The famous Egyptian pyramids have square bases and four triangular faces. As the number of sides increases in a pyramid, it begins to look like a cone.

So, we can say A and C are both correct. But we will go with A as a square will also be considered in it.

What is not the sum to 13

Answers

Answer:

Step-by-step explanation:

3 plus 3 is not 13

Identify the shape in the image below

Answers

Well, the answer is Rhombus. Hope I help you ;)

Simple...

as far as I can tell it's a rhombus ..... this being said because it has two noticeable acute/obtuse angles.

Thus, your answer, C.

Evan and Jose are writing an equation of the line through (4,5) 4 5 and (8,7) 8 7 . Whose solution is correct?

Answers

My solution is Y= x/2 + 3. I don't know Evan's or Jose's solution.

Derive the equation of the parabola with a focus at (−5, 5) and a directrix of y = -1.

Answers

$(x;\ y)-the\ coordinates\ any\ point\ on\ the \ parabola.\n\nDistance\ between\ the\ point\ (x;\ y)\ and\ the\ focus\ (-5;\ 5)\nand\ distance\ between\ the\ point\ (x;\ y)\ and\ a\ direct\ are\ equal.\n\nDistance\ between\ (x;\ y)\ and\ (-5;\ 5):\n√((x-(-5))^2+(y-5)^2)=√((x+5)^2+(y-5)^2)\n\nDistance\ between\ (x;\ y)\ and\ y=-1:\n|y-(-1)|=|y+1|\n\nWe\ equate\ the\ two\ expressions:\n√((x+5)^2+(y-5)^2)=|y+1|$

$Square\ both\ sides:\n(x+5)^2+(y-5)^2=(y+1)^2\n\nUse:(a\pm b)^2=a^2\pm2ab+b^2\n\nx^2+2\cdot x\cdot5+5^2+y^2-2\cdot y\cdot5+5^2=y^2+2\cdot y\cdot1+1^2\nx^2+10x+25+\not y^2-10y+25=\not y^2+2y+1\nx^2+10x-10y+50=2y+1\n2y+1=x^2+10x-10y+50\ \ \ \ |subtract\ 1\ from\ both\ sides\n2y=x^2+10x-10y+49\ \ \ \ |add\ 10y\ to\ both\ sides\n12y=x^2+10x+49\ \ \ \ |divide\ both\ sides\ by\ 12\n\n\boxed{y=(1)/(12)x^2+(5)/(6)x+(49)/(12)}$

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HELP ME PLZZ SOMEONE DONT JUST ANSWER RANOMELLY I REALLY NEED HELP !!!!Frankenstein is definitely a classic and he can still manage to get a few scares, but the also classic Werewolf has seen better days. The Werewolf is often the target of scares and has an equation perpendicular to Frankenstein's. Frankenstein's equation is`y=x+5` and the Werewolf's equation passes through the point `\left(-1,-2\right).` What is the Werewolf's equation?