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3 years ago

10

For each circle equation, find the center and radius.

1 answer:

lisov135 [29]3 years ago

4 0

#1 center (9,6) radius = 10
#2 center (4,-2) radius = 4 square root 2
#3 center (-3,-8) radius = 9
#4 center (-6,5) radius = 2 square root 2

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Is (-7,2) a point on the line?

Gala2k [10]

Answer:

what line i swear if u tell me i can answer just comment

Step-by-step explanation:

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3 years ago

I need help on these question ASAP!!!! This is Urgent

GarryVolchara [31]

Part 1: The equation of the line is $y=2x+1$

Part 2: The equation of the line in slope intercept form is $y=-3x-1$

Explanation:

Part 1: It is given that the point A is $(1,3)$ and the line B is $y=2 x-2$

To determine the line passing through the point A and parallel to line B, let us first determine the slope and y-intercept.

From the equation of line B, the slope is $m=2$

Substituting the point $(1,3)$ and $m=2$ in slope intercept form $y=mx+b$ , we have,

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$3=2+b$

$1=b$

Thus, the y-intercept is $b=1$

Let us substitute the values $m=2$ and $b=1$ in the slope intercept form $y=mx+b$ , we get,

$y=2x+1$

Thus, the equation of the line passing though point A and parallel to line B is $y=2x+1$

Part 2: The given two coordinates are $(-1,2)$ and $(1,-4)$

To determine the equation of line in slope intercept form, first we shall find the slope and y-intercept.

From the graph, we can see that the line touches the y-axis at -1.

Hence, the y-intercept is $b=-1$

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Substituting the coordinates $(-1,2)$ and $(1,-4)$ , we have,

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Thus, the slope is $m=-3$

Substituting the values $b=-1$ and $m=-3$ in the slope intercept formula $y=mx+b$ , we get,

$y=-3x-1$

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4 0

3 years ago

A computer purchased for $1,650 loses 19% of its value every year.

Artyom0805 [142]

A) a=the initial value ($1650)
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3 years ago

Please explain this answer ☹️

GuDViN [60]

Answer:

see explanation

Step-by-step explanation:

Note that cos315° = cos45° and sin315° = - sin45° and

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Hence

12(cos315° + isin315°)

= 12(cos45° - isin45°)

= 12( $\frac{\sqrt{2} }{2}$ - i $\frac{\sqrt{2} }{2}$ )

= 6 $\sqrt{2}$ - 6i $\sqrt{2}$

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3 years ago

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saw5 [17]

Itshould be 6/11 sorry if it’s wrongg

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3 years ago

Read 2 more answers