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3 years ago

13

(IREALLY NEED HELP PLEASE! <3 ) Which numbers are a distance of 3.2 units from −4 on a number line? A number line with increm

ents of .5 with a range of 0 to negative 7.5 Select each correct answer. −7.4 −7.2 −6.3 −4.2 −3.8 −0.8

2 answers:

Rashid [163]3 years ago

8 0

Answer: -0.8 & -7.2

Step-by-step explanation:

marishachu [46]3 years ago

4 0

Answer:

-0.8 & -7.2

Step-by-step explanation:

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3279 is greater than 3273

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masya89 [10]

Let

$P=(P_x,P_y),\quad Q=(Q_x,Q_y)$

If M is the midpoint, the x and y coordinates of M are the average of the x and y coordinates of P and Q:

$M=\left(\dfrac{P_x+Q_x}{2},\ \dfrac{P_y+Q_y}{2}\right)$

We can solve this expression for the coordinates of Q:

$M_x = \dfrac{P_x+Q_x}{2} \implies Q_x = 2M_x-P_x$

$M_y = \dfrac{P_y+Q_y}{2} \implies Q_y = 2M_y-P_y$

Plug in the values for the coordinates of M and P to get

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$Q_y = 2M_y-P_y = 2\cdot (-2) - (-10) = -4+10=6$

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3 years ago

a parabolic lamp is facing due east. The bulb (located at the focus) is 8 inches away from the vertex (located at the origin). t

True [87]

9514 1404 393

Answer:

3 1/8 inches

Step-by-step explanation:

For focus-vertex distance p, the equation of the parabola can be written ...

y = x^2/(4p)

Here, we have p=8. We want to find the value of y when x=10 (the radius of the dish). That is ...

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3 years ago

How do you graph 193 + y is greater than or equal to 201

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Answer:

The correct answer is y ≥ 8

Step-by-step explanation:

In order to graph this, we must first solve the equation for y.

193 + y ≥ 201

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andrezito [222]

Answer:

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Step-by-step explanation:

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