3 years ago

Place on,number line

Mathematics

2 answers:

Alex3 years ago

8 0

A goes between -1 and -1/2

Ipatiy [6.2K]3 years ago

3 0

I think it might be C

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Boston had a high temperature this year of 99º. They had a low temperature of -10°.

stealth61 [152]

Answer:

109

Step-by-step explanation:

99+10=109

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3 years ago

Find the mean median of each data set.

joja [24]

Median 72.5
Mean is 76

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2 years ago

Prove that :-<br><br> Cos3A-cosA/sin3A-sinA+cos2A-cos4A/sin4A-sin2A=sinA/cos2Acos3A

ad-work [718]

$\dfrac{\cos^3A-\cos A}{\sin^3A-\sin A}+\dfrac{\cos^2A-\cos^4A}{\sin^4A-\sin^2A}=\dfrac{\sin A}{\cos^2A\cos^3A}\\\\L_s=\dfrac{\cos A(\cos^2A-1)}{\sin A(\sin^2A-1)}+\dfrac{\cos^2A(1-\cos^2A)}{\sin^2A(\sin^2A-1)}\\\\=\dfrac{\cos A(-\sin^2A)}{\sin A(-\cos^2A)}+\dfrac{\cos^2A\sin^2A}{\sin^2A(-\cos^2A)}\\\\=\dfrac{\sin A}{\cos A}-1=\tan A-1$

$R_s=\dfrac{\sin A}{\cos A\cos^4A}=\dfrac{\sin A}{\cos A}\cdot\dfrac{1}{\cos^4A}=\tan A\cdot\dfrac{1}{\cos^4A}=\dfrac{\tan A}{\cos^4A}$

$\boxed{L_s\neq R_s}$

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2 years ago

What else would need to be congruent to show that ABC XYZ by ASA?

pochemuha

ASA stands for "angle side side" and we are already given two angles. That means we need a side. That eliminates two of the choices. I would assume that the answer is A, because XY and AB are in between the given angles.

3 0

3 years ago

Read 2 more answers

Multi step equations <br> 4-5x=29

Gemiola [76]

Answer: x = -5

Step-by-step explanation:

1) subtract 4 from both sides (-5x = 25)

2) divide -5 from both sides (x = -5)

Then you have the answer!

6 0

3 years ago