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vlada-n [284]
3 years ago
9

Need help with these math questions please.

Mathematics
1 answer:
Bas_tet [7]3 years ago
6 0

Answer:

8 - 2π square units.

π/16 - 1/8 square units.

6π - 9√3 square units.

Step-by-step explanation:

The area of the square = 2√2 * 2√2

= 2*2*2

= 8.

The area of the circle = πr^2

= π * [ ( 2√2)/ 2) ]^2

=  π (√2)^2

=  2π.

Second Question:

The area of the circle = π(1/2)^2 = π/4.

Finding the area of the square:

1^2 = 2x^2

x^2 = 1/2

So the area of the square = 1/2

So the area of the red part = 1/4 ( π/4 - 1/2).

= π/16 - 1/8.

Third question

Area of the circle = 6^2 * π = 36π.

Now 60 degrees is 1/6 of 360 degrees so the are of the sector is 6π.

The area of the segment = 6π -  0.5 * 6^2 sin 60

= 6π - 18√3/2

= 6π - 9√3 square units.

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Lelu [443]
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So the vector is √193 @ 120.26°
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3 years ago
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Advocard [28]

Answer:

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Step-by-step explanation:

6 0
3 years ago
1-sin^2x/sinx-cscx <br><br>How do I solve this problem? I keep getting the wrong answer.
Annette [7]

Answer:

-sinx

Step-by-step explanation:

a trig identity that is crucial to solving this problem is: sin^2 + cos^2 = 1

with knowing that, you can manipulate that and turn it into 1 - sin^2x = cos^x

so 1-sin^2x/sinx - cscx becomes cos^2x/sinx - cscx

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knowing this information, cscx can be replaced with 1/sinx

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cos^2x

---------------------

(sin^2x - 1)/sinx

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so now it becomes:

cos^2x

--------------

-cos^2x/sinx

because we have a fraction over a fraction, we need to flip it

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---------- * ----------------

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because the cos^2x can cancel out, it becomes 1

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3 0
3 years ago
Steve built a rectangular  table that is 72 inches long and has a perimeter of 240 inches. What is the width of Steve's table? P
crimeas [40]
2(l+w)=P
72 x 2= 144
240 - 144= 96
96/2= 48
your answer would be 48in.
<u>check
</u>2(72+48)= 240
  144+96= 240
        240=240
4 0
3 years ago
Read 2 more answers
7th grade math help me pleaseeee
garik1379 [7]
The answer to how many batches is 9, hope this helped.
4 0
2 years ago
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