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3 years ago

I think its 2, 150 but just making sure.

Mathematics

1 answer:

mina [271]3 years ago

4 0

Answer:

The answer is 2,150

Step-by-step explanation:

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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:

<u><em>Given equation is</em></u>

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

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 = $2\sqrt{15}$

7 0

3 years ago

5. Which graph shows a line with the same y-intercept as the graph of 10x-16y=-40?

Aleksandr-060686 [28]

Answer: B

Step-by-step explanation:

8 0

2 years ago

F(x)=x^2+3x+2 is shifted 2 units left.the result is g(x). What is g(x)?

slamgirl [31]

Answer:

Either A or B.

Step-by-step explanation:

When shifting to the left you are adding to x.

Example: x^2 shifted to the left by 3. (x+3)^2

6 0

3 years ago

Read 2 more answers

45 Points, Question 2 In Attachment. Asap if possible.

Masja [62]

Answer: x = $\frac{-5}{2}$

Step-by-step explanation:

$3^{4x-5}$ = $(\frac{1}{27}) ^{2x+10}$

1/27 can be written in index form as $3^{-3}$

The equation then becomes:

$3^{4x-5}$ = $(3^{-3})^{2x+10}$

Equating the coefficient

4x - 5 = -3 ( 2x + 10)

4x - 5 = -6x - 30

10x = -30 + 5

10x = -25

x = -25/10

x = -5/2

x = - 2.5

4 0

3 years ago

What is the correct answer?

egoroff_w [7]

X⁴ - 81 = x⁴ - 9² (Difference of 2 squares, then we an write it:

(x²-3)(x²+3) =0, → then (x²-3) = 0 and (x²+3)=0

(x²-3) = 0 → x² = 3 → x = +√3 and x = -√3
(x²+3) =0 → x² = -3 → x = +√-3 and x = -√3→ or i√3 AND x = -i√3

A{ -3 , +3 , -i√3 , i√3}

4 0

3 years ago