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3 years ago

I need help with this i honestly do not get it

Mathematics

1 answer:

notsponge [240]3 years ago

8 0

Answer:

I think it’s option 1 because you multiply x ² and x which would be x to the 3 not x ²

Step-by-step explanation:

I hope you understand

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Find the area of the shaded region.

luda_lava [24]

Answer:

The area of the shaded region is $11.6\ cm^{2}$

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of the sector of circle of angle 68.9 degrees minus the area of the isosceles triangle

step 1

Find the area of sector of the circle

The area of circle is equal to

$A=\pi r^{2}$

assume

$\pi =3.14$

$r=9.28\ cm$

substitute

$A=(3.14)(9.28)^{2}$

$A=270.41\ cm^{2}$

Remember that the area of a circle subtends a central angle of 360 degrees

using proportion Find out the area of a sector with a central angle of 68.90 degrees

Let

x -----> the area of a sector

$270.41/360=x/68.90\\\\x=68.90*270.41/360\\\\x=51.75\ cm^{2}$

step 2

Find the area of the isosceles triangle

Applying the law of sines

The area is equal to

$A=(1/2)r^{2}sin(68.90)$

we have

$r=9.28\ cm$

substitute

$A=(1/2)(9.28)^{2}sin(68.90)=40.17\ cm^{2}$

step 3

Find the area of the shaded region

$51.75-40.17=11.58\ cm^{2}$

Round to the nearest tenth

$11.58=11.6\ cm^{2}$

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4 years ago

8) Ninety-one is 65% of what number?

lutik1710 [3]

Answer : 140
140 times 40% = 65 so the answer is 140

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In training for a swim meet, Logan swam 750 meters in \large \frac {1}{3}

worty [1.4K]

Answer:

500

Step-by-step explanation:

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the correct answer is C. Taxi A is the better deal for the first 7.5 miles.

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Elena-2011 [213]

Answer:

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