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2 years ago

I need the answer as fast as i can get it!

Mathematics

1 answer:

blondinia [14]2 years ago

7 0

Answer:

The answer should be choice D.

HOPE THIS HELPS! :)

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3 years ago

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

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

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

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2 years ago

Find the distance d from (6.1, 5.9) to (-5.9, -4.1) .

photoshop1234 [79]

Distance formula:
√(x1-x2)^2+(y1-y2)^2

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2 years ago

A local park is in the shape of a square. A map of the local park is made with the scale 1 inch to 200 feet. a) If the park is s

vitfil [10]

Answer:

The length of each side of the square park is 2,400 ft

Step-by-step explanation:

we know that

The scale is $\frac{1}{200}\frac{in}{ft}$

step 1

Remember that

1 ft=12 in

The length of each side on the map is 1 ft

Convert ft to in

1 ft=1(12)=12 in

step 2

Find the length of each side of the square park

using proportion

Let

x ----> the actual length of each side of the square park

$\frac{1}{200}\frac{in}{ft}=\frac{12}{x}\frac{in}{ft}\\\\x=200*12\\\\x=2,400\ ft$

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2 years ago

Express the equation in the form Y= mx+b by solving for Y. -2x-y=10

Mars2501 [29]

Answer:

the answer is d: y=-2x-10

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3 years ago