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2 years ago

12

PLS HELP!!!

1 answer:

inessss [21]2 years ago

7 0

Answer:

36

Step-by-step explanation:

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Which equation is y = –3x2 – 12x – 2 rewritten in vertex form?

Andrej [43]

<span>The general equation of a quadratic is expressed as y = ax^2+bx+c. To convert the general equation to vertex form, we need to obtain this form:

(y- k)= a(x - h)^2

This could be done by using completing the square method.

</span><span>y = –3x^2 – 12x – 2
</span><span>y + 2 = –3(x^2 + 4x)
</span>y + 2 -12 <span>= –3(x^2 + 4x + 4)
</span>y - 10 = -3(x+2)^2

Therefore, the answer is the first option.

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3 years ago

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Suppose that G(X) = F(x+ 9). Which statement best compares the graph of

coldgirl [10]

Answer: Option D

Step-by-step explanation:

By definition if we have a function F (x) and perform a transformation of the form

$G (x) = F (x + c)$

Then it is true that:

If c is negative the graph of G(x) will be equal to the graph of F(x) displaced horizontally c units to the right

If c is positive, the graph of G(x) will be equal to the graph of F(x) displaced horizontally c units to the left.

Note that in this case the transformation is:

$G (x) = F (x + 9)$

Then $c = 9$ and $c> 0$

Therefore the graph of G(x) will be equal to the graph of F(x) displaced horizontally <em>9 units to the left</em>

The answer is the option D.

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3 years ago

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One wet weekend, 0.86 inches of rain fell on saturday. the next day, 1.52 inches of rain fell. how many inches of rain fell over

nataly862011 [7]

0.86 + 1.52 = 2.38 inches of rain fell over the weekend

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3 years ago

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Which expression is equivalent to a + (c + 7)?

Vikki [24]

Answer:

(a+c)+7

Step-by-step explanation:

this is called the Associative Property

(x+y)+z=x+(y+z)

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3 years ago

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Six more than the quotient of a number b and 45 is grater than 4

Wewaii [24]

$(b:45)+6>4\qquad\text{subtract 6 from both sides}\\\\\dfrac{b}{45}>-2\qquad\text{multiply both sides by 45}\\\\\boxed{b>-90}$

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3 years ago