2 years ago

Will (-2)^2 and -2^2 have the same solution? why or why not

Mathematics

1 answer:

nexus9112 [7]2 years ago

5 0

Doing this so I can ask sorry

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the captain of a boat knows that the lighthouse on the coast is 200 feet tall. he measures the angle of elevation to the top of

krek1111 [17]

Answer:

The boat is 5727.25ft far from the coast

Step-by-step explanation:

Refer the figure given.

We need to find how far is the boat from the coast = AB

Angle of elevation = 2°

The lighthouse on the coast is 200 feet tall, AC = 200 ft

We have

$tan2=\frac{AC}{AB}=\frac{200}{AB}\\\\AB=\frac{200}{tan2}=5727.25ft$

The boat is 5727.25ft far from the coast

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2 years ago

Matlab a farmer wishes to build a rectangular pen for his animals out of 40 feet of fencing what should be the length and width

ASHA 777 [7]

Width=w
length=(40-2w)/2=20-w
A=w(40-w)
A=40w-w²
A'=40-2w=0
2w=40
w=20

20x20 is the size of the pen having the greatest area. this tells us the largest rectangle for a given perimeter is a square

8 0

2 years ago

Evaluate the expression for x = 10 . 3x + 4(x - 8) - 14

timurjin [86]

Answer:

${ \tt{3x + 4(x - 8) - 14}} \\ = { \tt{3x + 4x - 32 - 14}} \\ = { \tt{7x + 46}}$

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2 years ago

How many full bowls of guacamole can be made with 17 avacados? measurements attached

iVinArrow [24]

Answer:

B, 5 bowls

Step-by-step explanation:

17÷3=5⅔, so 5 bowls :)

8 0

1 year ago

Write the fraction or mixed number as a percent. 21/25

Strike441 [17]

21/25=21/25×100=84% is the answer

8 0

2 years ago

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