Answer:
Step-by-step explanation:
7a + 7c = 861 ...... <em>(1)</em>
7a + 5c = 829 ..... <em>(2)</em>
<em>(1)</em> - <em>(2)</em>
2c = 32
<u><em>c = 16</em></u>
<u><em>a = </em></u>123 - 16 =<u><em> 107</em></u>
Answer:32
Step-by-step explanation:I divided 16 by 0.5
The slope-intercept form:

m - slope
b - y-intercept
We have the slope m = 4. Substitute:

Put the coordinates of the point (2, -3) to the equation of a line:

<em>subtract 8 from both sides</em>

<h3>Answer: y = 4x - 11</h3>
Answer:
(x + 7)² + (y - 8)² = 49
Step-by-step explanation:
Circle Equation: (x - h)² + (y - k)² = r²
(h, k) is center
<em>r</em> is radius
Step 1: Define
h = -7
k = 8
r = 7
Step 2: Substitute
(x - -7)² + (y - 8)² = 7²
(x + 7)² + (y - 8)² = 49
Answer:
A. △ABC and △JKL are similar.
Step-by-step explanation:
Since three angles of one triangle are congruent to three corresponding angles of the other triangle, the triangles are either congruent or similar. Since the side of one triangle is twice the length of the corresponding side of the other triangle, then the triangles are not congruent, but they are similar.
A. △ABC and △JKL are similar.