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Veronika [31]
2 years ago
8

Hi, I need help pls! (screenshots included)

Mathematics
1 answer:
mestny [16]2 years ago
5 0

8. a = s*s

144 = s^{2}

\sqrt{144} = \sqrt{s^2}

12 = s

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Need geometry help ASAP please!
tatiyna

Answer:

1. 121 π  unit²

2. 143°

3. 151 unit²

Step-by-step explanation:

1.

Area of a circle is given by the formula  A = πr²

where

A is the area,

r is the radius of the circle

From the given diagram, we can see that the radius is 11, hence the area will be:

A=\pi r^2\\A=\pi (11)^2\\A=121\pi

The answer is  121\pi units^2

2.

The unshaded secctor and the shaded sector equals the circle. We know that circle is 360°. The unshaded sector has an angle of 217°. So the shaded part will be 360 - 217 = 143°

The measure of the central angle of the shaded sector is 143°

3.

Area of a sector is given by the formula  A=\frac{\theta}{360}*\pi r^2

Where

\theta is the central angle of the sector (in our case it is 143°)

r is the radius (which is 11)

Plugging in all the info into the formula we have:

A=\frac{\theta}{360}*\pi r^2\\A=\frac{143}{360}*\pi (11)^2\\A=150.99

<em>rounding to the nearest whole number, it is </em>151 units^2

3 0
3 years ago
In ΔEFG, the measure of ∠G=90°, FG = 67 feet, and EF = 98 feet. Find the measure of ∠F to the nearest tenth of a degree.
Mama L [17]

Answer:

46.9 degrees is the answer

6 0
3 years ago
X^2-3×=2 use quadratic equation ​
abruzzese [7]

Answer:

(-3+√17 )/2. or( -3-√17)/2

hope you got it

4 0
3 years ago
Christopher plays quarterback for a
jeka94

Answer:

70%

Step-by-step explanation:

42\div60

<u><em>Calculate</em></u>

<u><em /></u>\frac{42}{60}

<u><em>Cross out the common factor</em></u>

<u><em /></u>\frac{7}{10}

<u><em>Multiply a number to both the numerator and the denominator</em></u>

<u><em /></u>\frac{7}{10}\times\frac{10}{10}

<u><em>Write as a single fraction</em></u>

<u><em /></u>\frac{7\times10}{10\times10}

<u><em>Calculate the product or quotient</em></u>

<u><em /></u>\frac{70}{10\times10}

<u><em>Calculate the product or quotient</em></u>

<u><em /></u>\frac{70}{100}

<u><em>Rewrite a fraction with denominator equals 100 to a percentage</em></u>

<u><em /></u>70%

<em>I hope this helps you</em>

<em>:)</em>

8 0
2 years ago
Write this mixed number 6 4/7 as an improper faction in simplest form
dangina [55]
It is 46/7     you could multiply 6x7 and then add 4 =   46/7
3 0
3 years ago
Read 2 more answers
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