Answer:
y = 12
Step-by-step explanation:
Complementary angles sum to 90 , so
3y - 1 + 4y + 7 = 90
7y + 6 = 90 ( subtract 6 from both sides )
7y = 84 ( divide both sides by 7 )
y = 12
Answer:
(-4,1)
Step-by-step explanation:
The given parabola is
When we rewrite in vertex form, we get;
Or
When we compare to:
We have 4p=-4
This means p=-1
But the vertex is at:
(-4,2)
Since it is a vertical parabola that opens down, the focus is one unit(|p|=1) below the vertex.
Hence the focus is (-4,1)
Answer:
The answer to your question is below
Step-by-step explanation:
23.- According to the picture I can conclude that is an isosceles triangle,
then, 45° = 2 so
45° = x + 60
x = 45 - 60
x = -15
24.- This is also an isosceles triangle, then, 2 = 74
3x - 4 = 32 2x 74 = 148
3x = 32 + 4 180 - 148 = 32 = 3x - 4
3x = 36
x = 12
25.- This is an equilateral triangle, then,
60 = 7x - 10
60 + 10 = 7x
70 = 7x
x = 70/7
x = 10