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3 years ago

Use partial products to find 15x32

Mathematics

2 answers:

miss Akunina [59]3 years ago

7 0

15
x32

30
45
add

answer=480

Vsevolod [243]3 years ago

4 0

Partial products of 15x32 is 5 x 5x 4x 8 =480

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What does first difference mean?

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In statistics and econometrics, the first-difference (FD) estimator is an estimator used to address the problem of omitted variables with panel data. It is consistent under the assumptions of the fixed effects model. In certain situations it can be more efficient than the standard fixed effects (or "within") estimator.

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djverab [1.8K]

Answer:

x=7

Step-by-step explanation:

Find slope first

$m-\frac{y2-y1}{x2-x1}$

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3 years ago

Identify the vertex, the axis of symmetry, the maximum or minimum value, and the range of the parabola for y=x^2+6x+13

charle [14.2K]

Answer:

Step-by-step explanation:

First we can determine the x value of our vertex via the equation:

$x=\frac{-b}{2a}$

Note that in general a quadratic equation is such that:

$ax^2+bx+c$

In this case a,b and c are the coefficients and so a=1, b=6 and c=13.

Therefore we can determine the x component of the vertex by plugging in the values known and so:

$x=\frac{-b}{2a}=\frac{-6}{2(1)}=\frac{-6}{2}=-3$

Now we can determine the y-component of our vertex by plugging in the x-component to the equation and so:

$f(x)=x^2+6x+13\\\\f(-3)=(-3)^2+6(-3)+13\\\\f(-3)=4$

Therefore our vertex is (-3,4). Now in vertex our x component determines is the axis of symmetry so the equation for axis of symmetry is:

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Similarly, the y-component of our vertex is the minimum or maximum. In this case it is the minimum you can determine this because a is positive meaning that the parabola will point up, and so the equation for the minimum is:

y=4

The range of the formula is the smallest y-value meaning the minimum y=4 and all real numbers that are more than 4, mathematically:

Range = All real numbers greater than or equal to 4.

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3 years ago

Circle O shown below has an arc of length 38 inches subtended by an angle of 86º.

Olin [163]

Answer:

lol I don't know it I need levels

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2 years ago

Help plz if you know it and your sure!!!!!!!!!!!!!!!!!!!!!!!!ASAP!!!!!!!!!!!!!!!!

irakobra [83]

The answer is (y) 6,-5 (x) I'm pretty sure! sorry if I got it wrong *-*

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