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2 years ago

9

5+ [x - {2y-(6x + y - 4) + 2x} - {x -(y - 2)}solve it.

1 answer:

yulyashka [42]2 years ago

3 0

Answer:

2(2x-3) or 4x-6 if you want to sound smarter

Step-by-step explanation:

I did it

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Answer:

51.90

Step-by-step explanation:

the answer is 51.90

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2 years ago

A paper plate has a diameter of 35 yards. What is the circumference of the plate?

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2 years ago

Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations. (-4, 9), (0,

Tresset [83]

Answer:

$\boxed{y=2x^2+4x-7}$

Step-by-step explanation:

Let the quadratic function be

$y=ax^2+bx+c$

We substitute $(-4,9)$ into the equation to obtain;

$9=a(-4)^2+b(-4)+c$

$\Rightarrow 9=16a-4b+c---(1)$

We substitute $(0,-7)$ to obtain;

$-7=a(0)^2+b(0)^2+c$

$\Rightarrow c=-7---(2)$

We finally substitute $(1,-1)$ to obtain;

$-1=a(1)^2+b(1)^2+c$

$\Rightarrow -1=a+b+c---(3)$

We put equation (2) into equation (1) to get;

$9=16a-4b-7$

$16a-4b=16$

$\Rightarrow 4a-b=4---(4)$

$\Rightarrow -1=a+b-7$

$\Rightarrow a+b=6---(5)$

We add equation (4) and (5) to get;

$4a+a=6+4$

$\Rightarrow 5a=10$

$\Rightarrow a=2$

We put $a=2$ into equation (5) to get;

$2+b=6$

$\Rightarrow b=6-2$

$\Rightarrow b=4$

The reqiured quadratic function is

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

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2 years ago

Select all that apply. the theorems in the lesson are followed by which of the following?

musickatia [10]

Answer: E

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7 0

2 years ago

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