Answer:
8
Step-by-step explanation:
from A to B it's 8 units long
B. Domain: [-3, 0]; Range: [- 2, 2]
domain is the x axis, range is the y axis
First, let's multiply the first equation by two on the both sides:
<span>8x + 7y = 39 /2
</span>⇒ 16x + 14y = 78
Now, the system is:
<span>16x + 14y = 78
</span><span>4x – 14y = –68
</span>
After adding this up in the column:
(16x + 4x) + (14y - 14y) = 78 - 68
20x = 10
⇒ x = 10/20 = 1/2
y can be calculated by replacin the x:
<span>8x + 7y = 39
</span>⇒ 8 · 1/2 + 7y = 39
4 + 7y = 39
7y = 39 - 4
7y = 35
⇒ y = 35 ÷ 7 = 5
Answer:
14, -7, -2
Step-by-step explanation:
<u>The coefficient is the number that multiplies the variable, so list the numbers that fall under that definition:</u>
14x - 7x + 1 - 2x
↑ ↑ ↑
14 -7 -2
<u>The coefficients in the expression are </u><u>14, -7, and -2.</u>
Its also 40°30' because the median is also a bisector in isosceles triangle
