B is correct because by default a rhombus has four equal sides, and it says it also has four right angles. A is incorrect because it could refer to any rectangle, C is incorrect because parallelograms don't necessarily have four right angles, and D is incorrect because quadrilaterals don't necessarily have four right angles either.
Answer:
67.5
Step-by-step explanation:
The sum of the interior angles is 540, therefore
540 = 90 + 4y
540 - 90 = 4y
450 = 4y
450 / 4 = y
112.5 = y
X and Y together equal 180, therefore
180 = x + 112.5
180 - 112.5 = x
67.5 = x
Answer:
Gym A is growing faster
Gym A 30 people per week
Gym B 15 people per week
Step-by-step explanation:
We can find the rate of change for Gym A
(2,20) and (4,80)
m = (y2-y1)/(x2-x1)
= (80-20)/(4-2)
=60/2
= 30 people per week
We can find the rate of change for Gym B
(2,70) and (4,100)
m = (y2-y1)/(x2-x1)
= (100-70)/(4-20)
= 30/2
= 15 people per week
Answer:
1.05263
Step-by-step explanation:
hope it helps !
Answer:
x= 1 y= +10
Step-by-step explanation: