3 years ago

How do i do step by step solve this question 102 = -2(7x + 5)

Mathematics

1 answer:

LenaWriter [7]3 years ago

4 0

All way solve what’s in parentheses first!!!

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kirill [66]

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3 years ago

Using sum or difference formulas, find the exact value of sin(165∘)

Nikitich [7]

$\bf \textit{Sum and Difference Identities}
\\ \quad \\
sin({{ \alpha}} + {{ \beta}})=sin({{ \alpha}})cos({{ \beta}}) + cos({{ \alpha}})sin({{ \beta}})
\\ \quad \\
sin({{ \alpha}} - {{ \beta}})=sin({{ \alpha}})cos({{ \beta}})- cos({{ \alpha}})sin({{ \beta}})\\\\
-------------------------------\\\\$

$\bf sin(165^o)\implies sin(120^o+45^o)
\\\\\\
sin(120^o)cos(45^o)~+~cos(120^o)sin(45^o)\implies \cfrac{\sqrt{3}}{2}\cdot \cfrac{\sqrt{2}}{2}~+~\cfrac{-1}{2}\cdot \cfrac{\sqrt{2}}{2}
\\\\\\
\cfrac{\sqrt{6}}{4}~-~\cfrac{\sqrt{2}}{4}\implies \cfrac{\sqrt{6}-\sqrt{2}}{4}$

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3 years ago

A recipe that makes 7 servings calls for 1 1/6 cups of juice.

VMariaS [17]

1/7 cups per serving

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3 years ago

Building Bonds puts on team-building events. The company charges a base rate of $45 per event, plus $7.50 per participant. Write

expeople1 [14]

Answer:

45+7.50x= y

Step-by-step explanation: