Answer:
3
Step-by-step explanation:
Since the shelves are 75.5cm long, the total length she would be needing is 75.5cm × 6 = 453cm
Now, the length of the wood she is using is 180cm, to get enough length to make the shelves, we would need to divide 453cm by 180cm which gives a value of around 2.51
This is approximately equal to 3 when rounded up to the nearest whole number.
The answer would be 19.25 ft because 1cm x 2.5 = 2.5 ft so you will have to do the same to 7.7 cm : 7.7cm x 2.5 = 19.25 ft.
Answer:
y=4x+1
Step-by-step explanation:
i hope this helps :)
i think the best answer is b.cos60 + sin60+1/8(5 +3cos40) the answer is -0.88232537463→
a
3
+
b
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(
a
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(
a
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−
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(
a
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b
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2
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a
b
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sin
2
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cos
2
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=
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cos
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x
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1
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cos
2
x
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2
sin
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=
1
−
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L
H
S
=
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(
x
)
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(
x
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=
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cos
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(
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[
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[
(
cos
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[
(
cos
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x
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x
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=
[
cos
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8
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[
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R
H
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Answer:
f(x) = x^3 + 2x^2 + x + 2
Step-by-step explanation:
If -2 + i is a zero, then -2 - i must also be a zero.
These zeros are -2, -2 + i and -2 - i, and the corresponding factors of the polynomail f(x) are (x + 2), (x + 2 - i) and (x + 2 + i).
(x + 2 - i) and (x + 2 + i) multiplied together becomes x^2 + 1.
Multiplying this result by the 3rd and last factor, (x + 2), we get
(x^2 + 1)(x + 2) = x^3 + 2x^2 + x + 2
Check, using synthetic division. What are the factors of x^3 + 2x^2 + x + 2?
-2 / 1 2 1 2
-2 -2 -2
-----------------------
1 0 -1 0 Since the remainder is zero, we know that
(x + 2) is a factor and -2 is a root.
