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yarga [219]
4 years ago
6

Write the equation of the circle with radius 2 and center (2,-3).

Mathematics
1 answer:
lozanna [386]4 years ago
4 0

Answer:

x^2 + y^2 - 4x + 6y - 3 = 0

Step-by-step explanation:

(x-a)^2 + (y-b)^2 = r^2 is the equation of a circle which has center point (a,b) and radius r.

So in this question (2,-3) is the center and r=4.

Then we can write the equation as,

(x-2)^2 + (y+3)^2 = 16

x^2 + y^2 - 4x + 6y - 3 = 0

That is the Equation of the circle.

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Sam plans to walk his dog a distance of 1 mile he walks 3/8 of a mile and stops to get a bottle of water then he walks 1/8 of a
zvonat [6]

1/2 of a mile.

Step-by-step explanation:

He has already gone 4/8 of a mile (3/8 + 1/8) and he needs to go 8/8 of a mile. 8/8 - 4/8 = 4/8. You can simplify that to 1/2.

6 0
3 years ago
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Is this rational or irrational I really need help ASAP! Will mark brainlist.
sertanlavr [38]

Answer:

Irrational number

Step-by-step explanation:

A irrational number is when the numbers cannot be written as a quotient of two integers.

8 0
3 years ago
Find the value of the variable
AnnyKZ [126]
The answer would be D
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3 years ago
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The Fiedler family has up to $130,000 to invest. They decide that they want to have at least $40,000 invested in stable bonds yi
gogolik [260]

Answer:

<em>They should invest </em><em>$40,000 in stable bonds</em><em> and </em><em>$60,000 in volatile bonds</em><em>. Their maximum income is </em><em>$129,900</em>

Step-by-step explanation:

Let us assume that, they invested x in stable bonds and y in volatile bonds.

The Fiedler family has up to $130,000 to invest.

x+y\le130000

They decide that they want to have at least $40,000 invested in stable bonds.

x\ge40000

They decide that they want no more than $60,000 should be invested in more volatile bonds.

y\le60000

The amount in the stable bond should not exceed the amount in the more volatile bond, so

x\le y

As we have to find maximum income from stable bonds yielding 5.5% and volatile bonds yielding 11%, so we have to maximize 1.055x+1.11y

Here,

Max 1.055x+1.11y

x+y\le130000

x\le y

x\ge40000

y\le60000

Using LPP, plotting the inequalities on graph, we get the feasible region as shown in the attachment.

The solutions to the system are,

(40000,60000),(40000,40000),(60000,60000)

Now putting all the solutions in the objective function to find the maximize the function.

f(40000,60000)=1.055(40000)+1.11(60000)=\$108800

f(40000,40000)=1.055(40000)+1.11(40000)=\$86600

f(40000,60000)=1.055(40000)+1.11(60000)=\$129900


8 0
3 years ago
Help with 1-18 all i need work If answer Ill give brainlyest I just need help please need answers fast
Trava [24]

Answer:

1, 4

Step-by-step explanation:

I did this in like year 8 and I cba to do all them but what u do is u go to the origin and count how many boxes there are to the point e.g A and the count them to the whatever the degree is e.g 90 but. 1, 4 would be the answer to the first one if its done how its meant to be but I don't know why they made it like that cause I did it differently. I'm just waff ling but yh.

7 0
3 years ago
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