3 years ago

Please help with math 4r+2+7r

Mathematics

2 answers:

olga nikolaevna [1]3 years ago

6 0

The simplified expression is 11r+2

UkoKoshka [18]3 years ago

6 0

Answer:

11r + 2

Step-by-step explanation:

I combined liked terms which are the r's, then left the 2 alone because you cant combine it with any other number.

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I really need help here !!:c

shepuryov [24]

Answer: $5.6^{3}+0.6^{2}+2.^{1}+4.6^{0}$

which will be 1096 in base 10

Step-by-step explanation:

$5024_{six}$ in expanded form to base 10 will be :

$5.6^{3}+0.6^{2}+2.^{1}+4.6^{0}$

which will be

$5(216)+0(36)+2(6)+4(1)$

⇒1080+0+12+4

= 1096

7 0

3 years ago

How to do this question by proving the identity?

jeyben [28]

$\sin^3 \theta-\cos^3 \theta=(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)\\\\
(\sin \theta-\cos \theta)(\sin^2 \theta+\sin \theta\cos \theta +\cos^2 \theta)=(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)\\\\
(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)=(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)\\\\$