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Nimfa-mama [501]
3 years ago
8

write the standard form of the equation of the circle with endpoints of a diameter at the points (9,2) and (-7,5)

Mathematics
1 answer:
AnnyKZ [126]3 years ago
4 0

Answer:

Step-by-step explanation:

Answer:

(x-1)²+(y-3.5)² = 265/4

Step-by-step explanation:

first find the midpoint (center of the circle)

(9+-7)/2, (2+5)/2

(1, 3.5) = center

then distance formula to find diameter

√(9- -7)²+(2-5)²=√256+9 = √265

The radius is half the diameter = (√265)/2

Formula for circle is (x-h)²+(y-k)²=r², where (h, k) is the center

Now you can plug everything in.

(x-1)²+(y-3.5)² = 265/4

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Find the value of X<br> (5x+4)°+(8x-71)°
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Answer:

x = -4/5

Step-by-step explanation:

Solve for x:

(5 x + 4) (8 x - 71) = 0

Split into two equations:

5 x + 4 = 0 or 8 x - 71 = 0

Subtract 4 from both sides:

5 x = -4 or 8 x - 71 = 0

Divide both sides by 5:

x = -4/5 or 8 x - 71 = 0

Add 71 to both sides:

x = -4/5 or 8 x = 71

Divide both sides by 8:

Answer:  x = -4/5 or x = 71/8

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3 years ago
Which of these is the algebraic expression for "4 times the sum of 2 and y?"
Volgvan

Answer:

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Step-by-step explanation:

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<h3>Hope it is helpful...</h3>
5 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME WITH MY GEOMETRY HOMEWORK PLEASE?
Kay [80]

Answer:

Option A

Step-by-step explanation:

The complete question is shown in the attachment.

The sum of angles in a triangle is 180 degrees.

This implies that:

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m<A=180-138=42

Now we use the sine rule to find AC=b

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This implies that:

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5 0
3 years ago
What are the coordinates of the vertex for f(x) = x2 + 4x + 10?
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3 years ago
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