Answer:
D
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
To calculate m of AB
m = =
Given a line with slope m then the slope of a line perpendicular to it is
= - = - = -
To find the midpoint of AB use the midpoint formula
M = [ (x₁ + x₂ ), (y₁ + y₂ ) ]
with (x₁, y₁ ) = )0, 0) and (x₂, y₂ ) = (2, 3), thus
M = [ (0 + 2), (0 + 3 )] = (1, )
Partial equation of perpendicular bisector is
y = - x + c
To find c substitute (1, ) into the partial equation
= - + c ⇒ c = + =
y = - x + → D
Answer:
6 and 9
Step-by-step explanation:
6 x 9 = 54
$88 for 8 basketballs bc 1 ball is 11$ and 11(8)=88
Answer:
C. The principal randomly selects homeroom classes and surveys each student in the chosen classes.
Step-by-step explanation:
Middle school is 6-8th. Surveying only the eighth-grade students won't give a representative sample of the whole school only the eighth-graders. Option A is incorrect.
Surveying only the students in detention represents a very small amount of students compared to the school, therefore it is not a representative sample. Option B is incorrect.
Yet again, the students in the math club is a small amount of students compared to the school. It does not represent the entire, or majority of the population. Option D is incorrect.
Picking students from homeroom classes and surveying each will give a wider variation of opinions from each grade and therefore a representative sample. Option C is the correct answer.
Answer:
4
Step-by-step explanation:
<em>4 is the rate because if she can make 4 in 10 min the the constant would be 4. By the way this didnt get answered becasue it was posted in spanish!</em>
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Have a great day!
Brainliest is appreciated!
- Lea