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3 years ago

15

Help me please .....

2 answers:

Allushta [10]3 years ago

8 0

Answers:

A

Step-by-step explanation:

SpyIntel [72]3 years ago

4 0

Answer: A

Step-by-step explanation:

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Evaluate the variable expression when a = -2, b = 5, C = -5, and d = 3.

maksim [4K]

Answer:

-4(5)+1(-2*-5+5*3)

Step-by-step explanation:

-20+1(10+15)

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3 years ago

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The image of a parabolic lens is projected onto a graph. The image crosses the x-axis at –2 and 3. The point (–1, 2) is also on

Ierofanga [76]

Answer:

$y =-\frac{1}{2}(x +2)(x - 3)$

Step-by-step explanation:

Given

$x_1 = -2$

$x_2 = 3$

$(x,y) = (-1,2)$ --- a point on the parabola

Required

The equation

First, calculate the equation from the zeros

$y =k(x - x_1)(x - x_2)$

Substitute $x_1 = -2$ and $x_2 = 3$

$y =k(x - -2)(x - 3)$

$y =k(x +2)(x - 3)$

To solve for k, we substitute $(x,y) = (-1,2)$

$2 = k(-1+2)(-1-3)$

$2 = k(1)(-4)$

$2 = -4k$

Divide by -4

$k=\frac{2}{-4}$

$k=-\frac{1}{2}$

So, the equation is:

$y =k(x +2)(x - 3)$

$y =-\frac{1}{2}(x +2)(x - 3)$

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3 years ago

The table below shows the cumulative amount of money that George saved over the course of several weeks.

noname [10]

Answer:

Step-by-step explanation:

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3 years ago

Which Expression is a factor of 16a2 − 25

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Answer:

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Step-by-step explanation:

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A=d-c/b

Step-by-step explanation:

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