3 years ago

The gardener mows your lawn in $9 and earns $45. Write and solve an equation to find the number of hours of the gardener worked

Mathematics

1 answer:

amid [387]3 years ago

4 0

Answer:

45/9=__

Step-by-step explanation:

Please mark me brainliest

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4 years ago

the double number line shows that in 3 seconds an ostrich can run 63 meters. how far can the ostrich run in 5 seconds

inna [77]

Answer: 105 meters

Step-by-step explanation:

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3 years ago

The solution shown for the equation is incorrect. What is the correct solution? What is the error?

Degger [83]

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3 years ago

Find 2 common angles that sum to (17pi/12) 2. Evaluate tan(17pi/12) using the sum identity for tangent.

Dmitry [639]

Note that
$\frac{17 \pi }{12} = \frac{3 \pi }{12} + \frac{14 \pi }{12} = \frac{ \pi }{4} + \frac{7 \pi }{6}$

Note that
$x= \frac{ \pi }{4}:\,\, sin(x) =cos(x)= \frac{1}{ \sqrt{2} },\,tan(x)=1\\x= \frac{7 \pi }{6} :\,\,sin(x)=- \frac{1}{2} ,\,\,cos(x)=- \frac{ \sqrt{3} }{2} ,\,\,tan(x)= \frac{1}{ \sqrt{3} }$

Use the identity
$tan(x+y)= \frac{tan(x)+tan(y)}{1-tan(x)tan(y)}$

Therefore
$tan( \frac{17 \pi }{12} )= \frac{1+ \frac{1}{ \sqrt{3} } }{1- \frac{1}{ \sqrt{3} } } = \frac{ \sqrt{3}+1 }{ \sqrt{3}-1} = \frac{( \sqrt{3}+1 )^{2}}{( \sqrt{3}-1 )( \sqrt{3}+1 )} = \frac{3+1+2 \sqrt{3}}{3-1} =2+ \sqrt{3}$

Answer: 2 + √3

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3 years ago

How many sides does a square pyramid have

slamgirl [31]

A square pyramid has 5 sides.

hope this helps!

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3 years ago