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Black_prince [1.1K]
2 years ago
8

Giving brainlyist to the first to answer with a correct and complete answer.

Mathematics
2 answers:
Naya [18.7K]2 years ago
6 0

Answer:

carrect answer is : multiply 40x20

Igoryamba2 years ago
3 0

Answer:

D. Multiply 40 x 8

Step-by-step explanation:

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a polygon has two interior angles of 120 degree each and the others are 150 degree each calculate the number of sides and the su
trapecia [35]

Answer:

  • 10 sides
  • angles total 1440°

Step-by-step explanation:

The formula for the total of interior angles can be used together with the given angle values to write an equation for the number of sides.

<h3>Setup</h3>

The total of interior angles of an n-sided polygon is 180°×(n -2). In the given n-sided polygon, two angles are 120° and (n -2) angles are 150°. The total of angles is the same either way it is computed:

  2×120 +(n -2)150 = (n -2)180

<h3>Solution</h3>

Subtracting (n-2)150, we have ...

  240 = 30(n -2)

  8 = n -2 . . . . . . . . divide by 30

  10 = n . . . . . . . . add 2

The polygon has 10 sides.

The total of interior angles is ...

  angle sum = 180°×(10 -2) = 1440°

The sum of interior angles is 1440°.

4 0
2 years ago
Read 2 more answers
If you have changed the tires on your car, the original diameter is 24.5 inches. to a new diameter of 26 inches, how fast are yo
Liula [17]

Answer:  c) 56.2

<u>Step-by-step explanation:</u>

Compare the original rate to the the new rate:

\dfrac{diameter}{mph}:\dfrac{24.5\ in}{53\ mph}=\dfrac{26\ in}{x}\\\\\\24.5x=53(26)\\\\\\x=\dfrac{53(26)}{24.5}\\\\\\x=\large\boxed{56.2\ mph}

8 0
3 years ago
A goblet contains 2 red marbles, 6 green marbles, and 4 blue marbles.
ira [324]

Answer:

P(first marble will be green and the second will be green as well)= 5/22

Step-by-step explanation:

A goblet contains 2 red marbles, 6 green marbles, and 4 blue marbles.

Total number of marbles= 2+6+4

                                        =12

P(first marble is green)=no. of green marbles/total number of marbles

                                  =  6/12

                               = 1/2

P(second marble is green and we didn't put the first marble back)

=no. of green marbles left/total marbles left

= 5/11

Hence, P(first marble will be green and the second will be green as well)

       =\dfrac{1}{2}\times \dfrac{5}{11}

      = 5/22

5 0
4 years ago
A line has a slope of -2/3 and passes through the point -3, 8 what is the equation of the line
Aloiza [94]
Y= -2/3 +6   bc...
(-3,8)
 y=mx+b
 8= -2/3(-3) +b
 8=2+b
-2 -2
6=b

4 0
3 years ago
Read 2 more answers
Divide and reduce your answer to lowest terms.<br><br><br><br><br><br><br> 3/7/9 divide 17
goblinko [34]

Answer:

1/357

Step-by-step explanation:

In the attached file

8 0
3 years ago
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