1 and 2 pls I will give brainiest if right

Mathematics

2 answers:

weqwewe [10]3 years ago

5 0

C and A please trust me

Genrish500 [490]3 years ago

4 0

Answer:

1.b

2.d

Step-by-step explanation:

i think

You might be interested in

Three pounds of fish food costs $14.97 at the market. What is the unit price

ruslelena [56]

Answer: $4.99

Step-by-step explanation:

14.97 ÷ 3; this will tell you the unit price of each individual fish.

The answer is $4.99.

***If you found my answer helpful, please give me the brainliest. :) ***

6 0

3 years ago

Find the center of the circle that you can circumscribe about DABC.

Vlada [557]

The center of the circle that circumscribe about DABC is $(h,k) = (1, 5)$ .

A circle can be modelled after a expression of the form:

$A\cdot x + B\cdot y + C =-x^{2}-y^{2}$ (1)

We can determine all coefficients by knowing three <em>distinct</em> points on plane.

If we know that $(x_{1}, y_{1}) = (2, 8)$ , $(x_{2}, y_{2}) = (0, 8)$ and $(x_{3}, y_{3}) = (2, 2)$ , then the solution of the system of linear equations is:

$2\cdot A + 8\cdot B + C = -68$ (2)

$8\cdot B + C = -64$ (3)

$2\cdot A + 2\cdot B + C = -8$ (4)

$A = -2, B = -10, C = 16$

Now we proceed to <em>complete</em> squares and factor each resulting perfect square trinomial in order to determine the coordinates of the center of the circle:

$x^{2}+y^{2}-2\cdot x -10\cdot y +16 = 0$