Answer:
3
Step-by-step explanation:
the initial statement is
y
∝
1
/x
to convert to an equation multiply by k the constant
of variation
y
=
k
×
1
/x
=
k
/x
to find k use the given condition
y
=
5 when x
=
6
y
=
k/
x
⇒
k
=
y
x
=
5
×
6
=
30
y
=
30
/x
when
x
=
10
then
y
=
30
/10
=
3
Answer:
27
Step-by-step explanation:
ΔABC is an obtuse triangle
∠ ABC = ∠ABD + ∠ DBC = 60° + 40° = 100°
thus ∠ ABC = 100° is an obtuse angle
hence ΔABC is an obtuse triangle
Answer: 1/20
To find P(Q and R), you have to multiply P(Q) by P(R) to get the probability that both events will occur. P(Q) = 1/8, and P(R) = 2/5, so when multiplied together, you get 2/40. This simplifies to 1/20, meaning P(Q and R) = 1/20.
630 acres
Since 1 cow takes of an acre for grazing that means you can have 3 cattle per acre so simply do 210×3 to get 630