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Sveta_85 [38]
3 years ago
7

Hey please help with this question( no links!!)

Mathematics
2 answers:
vova2212 [387]3 years ago
8 0
So the area of a circle is pi times the radius squared.
A= pi*r^2
The radius here is the diameter divided by 2.
radius = 16/2
r = 8
A= 3.14*(8)^2
A= 3.14*64
A= 200.96

C. 200.96 in^2
avanturin [10]3 years ago
6 0

Answer:

d. 200.96 sq. in

Step-by-step explanation:

radius = diameter/2 = 16/2 = 8

Area of the circle = pi x r²

= 3.14 x 8²

= 3.14 x 64

= 200.96

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ANSWER CORRET AND ILL MARK U BRAINLIEST
Kipish [7]

Answer:

two is the last one, three us the first one, and four is the second one, and six is the definition of parallelogram

6 0
4 years ago
-1(x+5)=3[x+(2x-1)]<br> solved and justified each step
madreJ [45]

Answer:

<h2>x = -0.2</h2>

Step-by-step explanation:

-1(x+5)=3[x+2x-1)]\\\\\text{for}\ -1(x+5):\ \text{distribtutive property}\\\text{for}\ [x+(2x-1)]:\ \text{associative property}\\\\(-1)(x)+(-1)(5)=3[(x+2x)-1]\\-x-5=3(3x-1)\\\\\text{for}\ 3(3x-1):\ \text{distributive property}\\\\-x-5=(3)(3x)+(3)(-1)\\-x-5=9x-3\\\\\text{for the equation}:\ \text{addition property of equality}\\\\-x-5=9x-3\qquad\text{add 5 to both sides}\\-x-5+5=9x-3+5\\-x=9x+2\\\\\text{for the equation:}\ \text{subtraction property of equality}\\\\-x=9x+2\qquad\text{subtract}\ 9x\ \text{from both sides}

-x-9x=9x-9x+2\\-10x=2\\\\\text{for the equation:}\ \text{division property of equality}\\\\-10x=2\qquad\text{divide both sides by -10}\\\dfrac{-10x}{-10}=\dfrac{2}{-10}\\x=-0.2

\text{Distributive property:}\ a(b+c)=ab+ac\\\text{Associative property:}\ (a+b)+c=a+(b+c)

6 0
3 years ago
Triangle ABC has side lengths a= 24, b= 40, and c= 55. What is the measure of angle C? 83.6° 116.2° 23.0° 40.7°
Harlamova29_29 [7]
<h3>Answer:  116.2°</h3>

Work Shown:

c^2 = a^2 + b^2 - 2ab\cos(C)\\\\55^2 = 24^2 + 40^2 - 2*24*40\cos(C)\\\\3025 = 576 + 1600 - 1920\cos(C)\\\\3025 = 2176 - 1920\cos(C)\\\\3025 - 2176  = -1920\cos(C)\\\\849  = -1920\cos(C)\\\\-1920\cos(C) = 849\\\\\cos(C) = (849)/(-1920)\\\\\cos(C) \approx -0.4421875\\\\C \approx \cos^{-1}(-0.4421875)\\\\C \approx 116.243535748231^{\circ}\\\\C \approx 116.2^{\circ}\\\\

The first equation is one of the three variations for the Law of Cosines.

Make sure your calculator is in degree mode.

5 0
2 years ago
Which of the following expresses the possible number of positive real solutions for the polynomial equation shown below 5x^3 + x
irinina [24]

I think the answer is option c.one

there is only one sign change in the whole equation so possiblythe answe must be one. correct me if i am wrong

4 0
3 years ago
Read 2 more answers
Whats the slope of (5,4) and (7,8)​
Zarrin [17]

Answer:

2

Step-by-step explanation:

<u>8-4</u>   =  <u>4</u>       = <u>2</u>     = 2

7-5       2           1

3 0
3 years ago
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