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sladkih [1.3K]
3 years ago
5

(Circumference or circles) explain your answer so I can understand

Mathematics
2 answers:
kykrilka [37]3 years ago
8 0

Answer:

28.26

Step-by-step explanation:

C=2\pi r\\                            Radius is twice the diameter so put 2\pi r\\

C=2*3.14*4.5

C=6.28*4.5

C=28.26

Ghella [55]3 years ago
3 0

Answer:

5.5 inches

Step-by-step explanation:

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In Triangle A B C, what is the value of x? Triangle A B C. Angle A is (10 x minus 10) degrees, angle B is (8 x) degrees, angle C
svp [43]

Answer:

6.5

Step-by-step explanation:

The sum of all angles in a triangle are 180 degrees.

=> 10x -10 + 8x + 10x + 8 = 180

=> 28x -2 = 180

=> 28x = 182

=> x = 6.5

So, Angle A = 10 x 6.5 -10 = 65 - 10 = 55 degrees

     Angle B = 8 x 6.5 = 52 degrees

     Angle C = 10 x 6.5 + 8 = 65 + 8 = 73 degrees.

55 + 52 + 73 = 55 + 125 = 180 degrees

6 0
3 years ago
Write an expression for the calculation 84 divided into sevenths added to 9 divided into thirds
kogti [31]
(84/7)+ 9/3=
     12+9/3
       12+3
          15




7 0
3 years ago
A polynomial is to be constructed that will touch the x axis at most 5 times. What is the minimum degree of the polynomial?
bonufazy [111]
Touch the x axis means the zeroes (y=0) of theh equation aka the roots aka the solutions
ok, so remember that the degree of the polynomial will be the maximum number of roots so therefor
minimum degreee is 5th degree
8 0
3 years ago
Adwadasdawda pls help
yuradex [85]

Answer:

An equation is 92 + 2x = 180.

The congruent angles each measure 44°.

Step-by-step explanation:

1. If two angles in a triangle are congruent and unknown, we can represent that as 2x. That means 92 + 2x = 180.

2. To find the measure of each congruent angle, x, we have to solve the equation above.

Step 1: Simplify both sides of the equation.

  • 2x + 92 = 180

Step 2: Subtract 92 from both sides.

  • 2x + 92 - 92 = 180 - 92
  • 2x = 88

Step 3: Divide both sides by 2.

  • \frac{2x}{2} = \frac{88}{2}
  • x = 44

x = 44 means that the congruent angles each measure 44°.

6 0
2 years ago
Read 2 more answers
You ask 120 randomly chosen students to name their favorite ice cream flavor. There are 1800 students in the school. Based on th
Stella [2.4K]
39/120 = x / 1800....39 choc. chip to 120 students = x choc. chip to 1800 students

now we cross multiply because this is a proportion
(120)(x) = (39)(1800)
120x = 70200
x = 70200/120
x = 585 <===

or u could do it this way as well...
39 out of 120 picked chocolate chip....
39/120 = 0.325 = 32.5%....so 32.5% chose chocolate chip.

32.5% of 1800 = 0.325(1800) = 585 <==
5 0
3 years ago
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