7(a+3) this is the answer im pretty sure
Answer:
Area and side length of rhombus.
Step-by-step explanation:
Directly proportional: If the first variable is multiplied by a constant, the other will also be multiplied by a constant.
Rhombus is a quadrilateral with equal side lengths.
Area increases with a quadratic relationship as a corresponding length increases if the angles do not change. If side length is multiplied by A, the area will be multiplied by A^2. If side length is doubled, the area will be 4 times greater.
Total cost is usually directly proportional to ticket price.
If number of tickets are doubled, the total cost will double.
Hours worked is usually proportional to money earned.
If one works twice as long, money earned will be twice as much.
Distance is proportional to time spent when speed is constant if travelling in a straight line. If time is twice as long, the distance traveled will double.
Patients who visit a clinic for the first time are asked to answer 15 questions about their health history.
Survey
A researcher randomly chooses 20 patients who come to the clinic with the flu and gives them an experimental drug. A randomly chosen group of 20 patients who come in with the flu receive a placebo.
Experiment
A doctor at the clinic asks patients who come in with a headache how many hours of sleep they get on a typical night.
Observational Study
Answer:
y=0.79x+27
Step-by-step explanation:
y is total cost and 0.79is per mile cost last is 27
so is y=0.79x+27
Answer:
B = 10.5
Step-by-step explanation:
From the figures, it looks like triangle HER is similar to triangle KPS.
From that we get
Multiply both sides by 7.
B = 10.5