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Elena-2011 [213]
3 years ago
6

the circumfrince of a circle is approximately 100.48 centimeters.the shaded region 3/10 of the whole circle.enter the area of th

e shaded region in square centimeters.round your answer to the nearest hundreth
Mathematics
1 answer:
Pavlova-9 [17]3 years ago
4 0
Fggdffgdgfdsfsdsfdsdfsdf
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The size of angle aob is equal to 132 degrees and the size of angle cod is equal to 141 degrees. find the size of angle dob.
Varvara68 [4.7K]

angle AOB = 132 and is also the sum of angles AOD and DOB. Hence 
angle AOD + angle DOB = 132°    ---> 1 

angle COD = 141 and is also the sum of angles COB and BOD. Hence 
angle COB + angle DOB = 141°    ---> 2

Now we add the left sides together and the right sides of equations 1 and 2 together to form a new equation. 

angle AOD + angle DOB + angle COB + angle DOB = 132 + 141       ---> 3 

We should also note that: 
angle AOD + angle DOB + angle COB = 180° 

Therefore substituting angle AOD + angle DOB + angle COB in equation 3 by 180 and solving for angle DOB:
180 + angle DOB = 132 + 141 
angle DOB = 273 - 180 = 93° 

8 0
3 years ago
When factoring a polynomial in the form ax2 + bx + c, where a, b, and c are positive real numbers, should the signs in the binom
gtnhenbr [62]

When factoring a polynomial in the form ax2 + bx + c, where a, b, and c are positive real numbers, the signs in the binomials should be both positive

<h3>What are quadratic equations?</h3>

Quadratic equations are second-order polynomial equations and they have the form y = ax^2 + bx + c or y = a(x - h)^2 + k

<h3>How to determine the true statement?</h3>

The form of the polynomial is given as:

ax2 + bx + c

Where a, b, and c are positive real numbers.

Since a, b, and c are positive real numbers. then the form of the expansion would be:

ax2 + bx + c = (dx + e)(fx + g)

<h3>Example to verify the claim</h3>

Take for instance, we have the following quadratic equation

x^2 + 6x +  8

Expand the equation

x^2 + 6x +  8 = x^2 + 4x + 2x +  8

Factorize the equation

x^2 + 6x +  8 = (x + 2)(x + 4)


Hence, the signs in the binomials should be both positive

Read more about polynomials at:

brainly.com/question/4142886

#SPJ1

5 0
2 years ago
What is the quotient when (x+3) is divided into the polnomial 2x^2+x-15
Alika [10]

Answer:

2x-5

remainder of 0

Step-by-step explanation:

Check the image

7 0
3 years ago
April took out a $600 loan from the bank . At the end of 5 years , she. Pays back the principal plus $60 simple instrest what wa
VLD [36.1K]

Answer: 12

Step-by-step explanation: you would divide the interest by the amount of time. 60/5

4 0
3 years ago
The expression (2x2)3 is equivalent to _____.<br><br>6x2<br><br>6x5<br><br>8x6
mamaluj [8]
6x2, because using pemdas, 2x2= 4 then 4x3=12. The answer must equal 12, and 6x2 does.
6 0
3 years ago
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