2 years ago

Solve for d. d³ = 27

Mathematics

2 answers:

Amiraneli [1.4K]2 years ago

8 0

Answer:

The answer is 3

Step-by-step explanation:

3×3×3=27

solniwko [45]2 years ago

3 0

Answer: d=3

Step-by-step explanation: 3 times 3 is 9

9 times 3 is 27

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erik [133]

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$1.=b.\\\\\csc x-\sin x=\dfrac{1}{\sin x}-\dfrac{\sin^2x}{\sin x}=\dfrac{1-\sin^2x}{\sin x}=\dfrac{\cos^2x}{\sin x}\\\\=\dfrac{\cos x\cos x}{\sin x}=\cos x\cdot\dfrac{\cos x}{\sin x}=\cos x\cot x\\\\Used:\\\csc x=\dfrac{1}{\sin x}\\\\\sin^2x+\cos^2x=1\to\cos^2x=1-\sin^2x\\\\\cot x=\dfrac{\cos x}{\sin x}$

$3.=a.\\\\\dfrac{\sin x-1}{\sin x+1}=\dfrac{\sin x-1}{\sin x+1}\cdot\dfrac{\sin x+1}{\sin x+1}=\dfrac{\sin^2x-1^2}{(\sin x+1)^2}=\dfrac{\sin^2x-1}{(\sin x+1)^2}\\\\=\dfrac{-(1-\sin^2x)}{(\sin x+1)^2}=\dfrac{-\cos^2x}{(\sin x+1)^2}\\\\Used:\\(a-b)(a+b)=a^2-b^2\\\\\sin^2x+\cos^2x=1\to \cos^2x=1-\sin^2x$

8 0

2 years ago

Which expression is equivalent to 8-3?

Ostrovityanka [42]

-3 + 8 would be an option

6 0

3 years ago

Read 2 more answers

15/16 divided by 20<br> 7/15 divided by 14

olga2289 [7]

Answer:

The first is 0.046 and the second is 0.033