Answer:
30°
Step-by-step explanation:
Use that
-the sum of angles in a triangle is 180° and that
-vertical angles are congruent ( angle x and the missing angle in the bottom triangle are vertical)
x= 180-75 -75 = 30°
The 3rd picture is perpendicular to the line QR
I really hope this helps you:)
Answer:
Option b: (-0.3, -7)
Step-by-step explanation:
If we have two points v = (x₁, y₁) and w = (x₂, y₂)
The vector that connects these two points and starts in point v, is written as:
vector = w - v = (x₁, y₁) - (x₂, y₂) = (x₂ - x₁, y₂ - y₁)
In this case, we want to find the vector that goes from (-3.7,2) to (-4, -5).
Then we will have:
vector = (-4, -5) - (-3.7,2) = (-4 - (-3.7), -5 - 2)
vector = (-0.3, -7)
Then the correct option is b.
Answer: One face is 16 square centimeters.
Step-by-step explanation: To find the area of a face, you need to know the length of the side. All the sides of the cube are the same, so take the cube root of 64.
cm is the length of the side
The area of one face is the side length squared 4² = 16
4cm × 4cm = 16 square centimeters.
15x + 30y = -10....reduce by dividing by 5
3x + 6y = -2...same as first equation...same line ..means infinite solutions