Place value-
40
- 9
-----
you regroup the 4 to 3 . the zero becomes a 10. 10-9=1 3 minus nothing is 3
so the answer is 31!
i hope this helps!
Marcella won't be able to win the competition because the length of the rope is less than 162 feet.
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How to find the sides of a right angle triangle?
The situation forms a right angle triangle.
The kite released rope is the hypotenuse side of the triangle formed.
The opposite side of the triangle is the height of the kite from the ground.
Therefore,
sin 28 = opposite / hypotenuse
sin 28 = 75 / h
h = 75 / sin 28
h = 75 / 0.46947156278
h = 159.754085116
h ≈ 160 feet
Therefore, she won't be able to win the competition because the length of the rope is less than 162 feet.
learn more on right triangle here: brainly.com/question/26774610?
#SPJ1
Area of rhombus = d1 × d2
= 12 × 16 = 192
Area of rhombus is also b × h
Assuming the side as base,
192 = b × h
192 = 10 × h
h = 192/10 = 19.2 in
x
4
+
50
x
2
+
625Rewrite
625
as
25
2
.
u
2
+
50
u
+
25
2
Check the middle term by multiplying
2
a
b
and compare this result with the middle term in the original expression.
2
a
b
=
2
⋅
u
⋅
25
Simplify.
2
a
b
=
50
u
Factor using the perfect square trinomial rule
a
2
+
2
a
b
+
b
2
=
(
a
+
b
)
2
, where
a
=
u
and
b
=
25
.
(
u
+
25
)
2
Replace all occurrences of
u
with
x
2
.
(
x
2
+
25
)
2
Answer: 8 People 4 notebooks 9 pencils and 3 erasers.
Step-by-step explanation: