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2 years ago

I need a equation for my parabola! I tried so many times and got it WroNg-

Mathematics

1 answer:

rodikova [14]2 years ago

5 0

Answer:

Step-by-step explanation:

Not QUITE a parabola . but up until y = 4 it is close

Vertex = (-7-10)

Vertex form of parabola

y = a ( x+7)^2 -10 find a integer-coordinat point to calculate 'a'

I'll use -18,0

0 = a(-18+7)^2 -10

0 = 122 a -10 a = 10/122

y = 10/122 (x+7)^2 - 10 see graph below:

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8(4-x)=7x+2 What is x?

11Alexandr11 [23.1K]

Hello!

Here are the steps to find your answer:

8(4 - x) = 7x + 2

32 - 8x = 7x + 2

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30 = 15x

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3 years ago

Read 2 more answers

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2 years ago

A six-sided number cube is labeled with the numbers 1-6, one number on each face. Each number is used exactly once.

I am Lyosha [343]

Answer:

Step-by-step explanation:

This question can be solved using fundamental counting principle which means to say that if there are "m" ways of doing one thing and there are "n" ways of doing other thing then there are total "m*n" ways of doing other things.

For example: if there are 4 type of pens and 3 type of notebook then there are "4*3" ways to write on notebook using the pens.

_____________________________________________________

Using the above mentioned principle we have

six sided cube with number 1 to 6 written on it hence in first roll there are six possible outcome(1 or 2 or 3 or 4 or 5 or 6) similarly there are 6 possible outcome in other roll as well.

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8 0

3 years ago

Angela owns a set of 6-inch tall glasses. Each glass has a diameter of 3 inches. Angela has three people over for dinner. Each g

AlladinOne [14]

Angela owns a set of 6-inch tall glasses. Each glass has a diameter of 3 inches. Angela has three people over for dinner. Each guest will be served a full glass of milk. How much milk will Angela need (in cubic inches)? Use 3.14 for pi ()

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2 years ago

WHAT IS X³-27 SIMPLIFIED

Eduardwww [97]

Answer:

It is (x - 3)³ - 9x(3 - x)

Step-by-step explanation:

Express 27 in terms of cubes, 27 = 3³:

$= {x}^{3} - {3}^{3}$

From trinomial expansion:

${(x - y)}^{3} = (x - y)(x - y)(x - y) \\$

open first two brackets to get a quadratic equation:

${(x - y)}^{3} = ( {x}^{2} - 2xy + {y}^{2} )(x - y)$

expand further:

${(x - y)}^{3} = {x}^{3} - y {x}^{2} - 2y {x}^{2} + 2x {y}^{2} + x {y}^{2} - {y}^{3} \\ {(x - y)}^{3} = {x}^{3} - {y}^{3} + 3x {y}^{2} - 3y {x}^{2} \\ {(x - y)}^{3} = {x}^{3} - {y}^{3} + 3xy(y - x) \\ \\ { \boxed{( {x}^{3} - {y}^{3} ) = {(x - y)}^{3} - 3xy(y - x)}}$

take y to be 3, then substitute:

$( {x}^{3} - 3^3) = {(x - 3)}^{3} - 9x(3 - x)$

5 0

3 years ago

I need a equation for my parabola! I tried so many times and got it WroNg- ​

I need a equation for my parabola! I tried so many times and got it WroNg-