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EleoNora [17]
3 years ago
14

Anyone know how to answer this question

Mathematics
1 answer:
mart [117]3 years ago
5 0

9514 1404 393

Answer:

  (x +6)^2 +(y -10)^2 = 225

Step-by-step explanation:

The standard form equation for a circle is ...

  (x -h)^2 + (y -k)^2 = r^2

where the center is (h, k) and the radius is r.

The center of a circle is the midpoint of any diameter. The midpoint between two points is the average of their coordinates.

  ((-15, -2) +(3, 22))/2 = (-15+3, -2+22)/2 = (-6, 10)

The radius can be found using the distance formula, or by simply putting one of the given points in the equation for the circle to see what the constant (r^2) needs to be.

  (x -(-6))^2 +(y -10)^2 = (-15-(-6))^2 +(-2-10)^2

  (x +6)^2 +(y -10)^2 = 81 +144 = 225

The equation of the circle is ...

  (x +6)^2 +(y -10)^2 = 225

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4% of what number is 40?
ladessa [460]

Answer: 1000

Step-by-step explanation: you do 4% multiplied by x = 40

Multiplying both sides by 100 and dividing both sides by 4,

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40×100÷4

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4 0
3 years ago
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Answer:

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Step-by-step explanation:

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A jar of natural peanut butter normally cost $4.00. Today its on sale for $3.60. What is the percentage of the discount
mafiozo [28]

Answer:

Ambitious

Answer

Find out the what is the percentage of this discount .

To prove

Formula

Discount = Marked price - selling price

As given

a jar of natural peanut butter normally costs $4.00 .

it's on sale for $3.60 .

thus

Marked price = $4.00

selling price = $3.60

put in the above formula

Discount = 4.00 - 3.60

              = 0.4

Formula

put the value

Discount percentage = 10%

Option (a) is correct .

Hence proved

8 0
3 years ago
a 20-m ladder is leaning against the wall of a building which is 16m high.how far is the foot of the ladder to the building?​
mrs_skeptik [129]

Answer:

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Step-by-step explanation:

This can be solved using the Pythagorean theorem

a^2 = b^2 + c^2

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400-256= c^2

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7 0
3 years ago
Which distributive property gives the same answer as 7(99)?
Makovka662 [10]

Answer:

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Step-by-step explanation:

That's it right there

6 0
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