3 years ago

Pls help me you guys are brilliant

Mathematics

1 answer:

IrinaVladis [17]3 years ago

6 0

He should buy the 24 pack

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Samuel exercises everyday. She spends 40% of his exercise on the treadmill. If he uses the treadmill 40 minutes each day, how ma

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Samuel exercises for 100 minutes each day. Or in other words, 1 hour and 40 minutes.

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3 years ago

Need help plzzzzzzzxzzxzx

nasty-shy [4]

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Step-by-step explanation:

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Hiroshi is looking to update his hat selection, and has $300 to spend. If his preferred style of hat costs $50.30 including tax,

malfutka [58]

Answer:

he can buy 5!

Step-by-step explanation:

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3 years ago

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a surveyor measures the distance to the two landmarks as shown in the diagram what is the distance d. between the landmarks

Inessa [10]

<h3>The distance between two landmarks is 123 meters</h3>

<em><u>Solution:</u></em>

We have to find the distance between two landmarks

<em><u>Use the law of cosines</u></em>

The third side of a triangle can be found when we know two sides and the angle between them

$c^2 = a^2 + b^2 - 2ab\ cos c$

Here, angle between 90 meters and 130 meters is 65 degrees

From figure,

a = 90

b = 130

c = d

Therefore,

$d^2 = 90^2 + 130^2 - 2(90)(130)\ cos 65\\\\d^2 = 8100 + 16900 - 23400\ cos\ 65\\\\d^2 = 25000 - 23400 \times 0.4226\\\\d^2 = 25000 - 9889.267\\\\d^2 = 15110.73\\\\d = 122.92\\\\d \approx 123$

Thus, the distance between two landmarks is 123 meters

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3 years ago

What's the equivalent algebraic expression?

densk [106]

-10c+70, just distribute the the -10 to everything in the expression

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3 years ago