2 years ago

Pleaseee help me ! plss

Mathematics

1 answer:

grin007 [14]2 years ago

7 0

Answer: d1 is 50, c2 is 21/25

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Explain how you got the answer

Gnoma [55]

Answer:

$\huge\boxed{Center = (3,3),Radius = 2\sqrt{15} }$

Step-by-step explanation:

Given equation is

$x^2 + y^2 -6x-6y -42 = 0$

Adding 42 to both sides

$x^2 + y^2 -6x-6y = 42\\$

Completing squares

$x^2 -6x+y^2 -6x = 42\\(x)^2 - 2(x)(3) +y^2 - 2(y)(3) = 42$

Adding (3)² => 9 and (3)² => 9 to both sides

$(x-3)^2+(y-3)^2 = 42+9+9\\(x-3)^2 + (y-3)^2 = 60\\(x-3)^2 (y-3)^2 = (2{\sqrt{15})^2}$

Comparing it with $(x-h)^2+(y-k)^2 = r^2$ where Center = (h,k) and Radius = r

We get:

Center = (3,3)

Radius = $2\sqrt{15}$

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4 years ago

Classify the polynomial 5x3 + 4x - 2 by degree.

brilliants [131]

Answer:

Step-by-step explanation:

3 would be the degree of the polynomial since it has the highest degree.

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3 years ago

Write and solve a proportion to answer the question. 72 is what percent of 45?

Ivanshal [37]

Answer:

160% is for 72 of 45

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3 years ago

Ermining the Measure of an Interior Angle

CaHeK987 [17]

I think it’s 70 degrees

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circle centered at the origin has a radius of 5 units. The terminal side of an angle, θ, intercepts the circle in Quadrant IV at

astraxan [27]

Answer:

Step-by-step explanation:

x²+y² = 5²

3²+y² = 25

y² = 16

y = ±√16 = ±4

Since the terminal side is in quadrant IV, y = -4

sinθ = -4/5

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3 years ago