Answer:
B. -4
Step-by-step explanation:
To find the slope you can count the difference between the 2 points. Slope is rise over run. This means that slope is equal to change in y/ change in x. In this case, the 2 y-values are 8 and -4. This is a decrease of 12, aka -12. Then, the 2 x-values are -1 and 2. This is an increase of 3. Therefore the slope is -12/3. When simplified this equals -4.
Additionally, there is a slope formula, . If you plug in the values, you will get the same answer as the technique above.
Answer:
Step-by-step explanation:
False, true, false are the answers
In my opinion, the best answer among the choices listed above is option C. Evolution is the name given for genetic changes in living things over time. It is the change in the traits of organisms over successive generations. Hope this answers the question.
Answer:
x = 20°, y = 70° see image
Step-by-step explanation:
Use the bottom, lower, short wide triangle first. It has marks on it to show that two of the sides are the same length. That means that the opposite angles are the same. One is marked x, so the other is also x. There is a 40° angle given, along the same line right next to it has to be 140°. We'll use that one.
Also, the angles in a triangle add up to 180°.
x° + x° + 140° = 180°
See image for calculations.
Then we use the whole entire triangle. It has a 90° angle and the 20° (for x, that we just found) and y. We'll use that to find y.
90° + y + 20° = 180°
See image for calculations.