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3 years ago

I need to find the sum of the interior angel

Mathematics

2 answers:

slavikrds [6]3 years ago

4 0

The answer is 900 degrees. The polygon is 7 sided, which is a heptagon. Heptagons have interior angles that add up to 900 degrees

Natasha2012 [34]3 years ago

3 0

Your answer will be 900
Even though the diagram is irregular the formula can be same “( number of sides -2)*180”
Hope it helps : )

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What is the number "n" if 7 less than 4 times n is 9

kondor19780726 [428]

4n-7=9
4n= 9+7
4n= 16
n= 16/4

N= 4

8 0

3 years ago

Consider a multiple choice exam with 10 questions, and with 4 possible answers to each question (labeled A, B, C, and D). 1a. Wh

mrs_skeptik [129]

Answer:

(1a) 9.54e-07 (1b) 0.9437 (2) $10^8$

Step-by-step explanation:

We have n = 10 questions. For each question in the multiple choice exam, we can choose the correct answer with probability p = 0.25 or an incorrect answer with probability q = 0.75 (just by guessing). Besides is reasonable to believe that questions are independent. Let X be the random variable that represents the number of correct answers (just by guessing) observed during the n = 10 questions, so, X have a binomial distribution.

(a) The probability of getting a perfect score just by guessing is

$P(X = 10) = 10C10(0.25)^{10}(0.75)^{10-10} = 9.54e-07$

(b) The probability of getting at least one question correct, just by guessing

$P(X\geq1) = \sum_{x=1}^{x=10}10Cx(0.25)^{x}(0.75)^{(10-x)} = 0.9437$

2. Each RUID is 9-digits long, there are 10 digits, each of the nine positions for a digit of the RUID has 10 posibilities except the 4th and 5th positions which must be both 0. For the multiplication rule there can be $(10)^3(1)(1)(10)^5 = 10^8$ different RUIDS.

3 0

3 years ago

Solve the system of equations. <br><br> x + y + z = 9<br> -2x +y+2z =3<br> x - 4y - z = 2

kow [346]

Answer: x = 4 , y = − 1 , z = 6

Step-by-step explanation: m.athway

8 0

3 years ago

Please help me!!!!!!!!!!1 marking brainliest!! :(

belka [17]

Answer:

Y = 3x

Step-by-step explanation:

Hope this helps! If wrong let me know. Pls give brainliest!

3 0

3 years ago

Select the correct answer. describe the zeros of the graphed function

katrin [286]

Answer:

The zeroes are at (-2, 0), (0, 0) and (2, 0).

The (0, 0) is a double root as the graph just touches the x axis at (0, 0).

The zero at (0, 0) is sometimes referred as x = 0 (multiplicity 2).

I think the duplicate roots are counted as 2 distinct roots but im not sure.

So the answer is either a or c.

Step-by-step explanation:

The zeroes are the points where the graph cuts the x axis.

6 0

3 years ago

Read 2 more answers