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Vlad [161]
2 years ago
15

Find the center of the circle with the following equation

Mathematics
1 answer:
melamori03 [73]2 years ago
5 0

Answer:

center is (1,-5)

the radius is 4

Step-by-step explanation:

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Use what you know about percents to answer these questions.
Andrei [34K]

Answer:

1. 72%

2. 18

3. 25

Step-by-step explanation:

1. 18/25= .72= 72%

2. 9f always means to multiply so .3 times 60= 18

3. work backward so 5/20%= 25

4 0
2 years ago
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If i^2 = −1 and a = (i + 7), which is the result of squaring a?
Artyom0805 [142]

Answer:

48+14i

Step-by-step explanation:

So squaring (i+7) looks like this

(i+7)^2

(i+7)(i+7)

Use foil.

First: i(i)=i^2=-1

Outer: i(7)=7i

Inner: 7(i)=7i

Last: 7(7)=49

____________Add the terms.

48+14i

8 0
3 years ago
The graph shows the number of pictures a traffic camera takes each minute.
BigorU [14]

Answer:

The point (8, 4) on the graph represent that:

'Every 8 Minutes, 4 Pictures are Taken.'

Step-by-step explanation:

Since the graph has not been provided lets try to explain in actual context.

The question states that the Graph shows the <u>Number of Pictures</u> a traffic camera takes <u>Each Minute.</u>

This tells us that we have a two-dimensional graph, of x with y where:

x: denotes <em>Each Minute</em>

y: denotes <em>Number of Pictures taken</em>

<em />

<em>Thus x is our </em><u><em>independent </em></u><em>variable that changes, and as a result of it so does y, our </em><u><em>dependent </em></u><em>variable. </em>

As such we can conclude that any point from the graph is of the form

(x,y).

Here the question asks what does the point (8,4) represent. So based on the information above we know that here:

x=8 and y=4

which if read on the graph it would indicate that:

On the x-axis of minutes we are looking at minute 8 and on the y-axis of number of pictures taking we are looking at the value 4. Thus:

(8,4) represents that Every 8 Minutes, 4 Pictures are Taken.

3 0
3 years ago
Read 2 more answers
Simplify: (x^2+2x-1)-(x+1)
notka56 [123]

Answer:

x^2+x-2

this is the answer bc the 2nd parentheses is being multiplied by the negative  sign meaning you need to subtract it from the 1st parentheses.

6 0
3 years ago
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An image of a right triangle is shown with an angle labeled x. If tan x° = 11 divided by r and cos x° = r divided by s, what is
Natali [406]
Sin x = 11/s because it’s opposite/hypotenuse.
6 0
3 years ago
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