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poizon [28]
3 years ago
9

A circular clock with a circumference of 88cm is mounted on a wall.How much area of a wall didn't occupy​

Mathematics
1 answer:
True [87]3 years ago
4 0

Answer:

616 cm^2

Step-by-step explanation:

Steps to derive the answer

1. we are going to first determine the radius from the circumference

2. we would calculate the area

Circumference of a circle = 2nr

n = 22/7

r = radius

88 = 2 x 22/7 x r

Divide both sides of the equation by 2 x 7/22

r = 14

Area of a circle = nr^2

3.14 x 14^2 = 616 cm^2

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Is it possible for the two triangles described below to be similar? Two angles of one triangle measure 60° and 70°. Two angles o
Aleonysh [2.5K]

Answer:

  no

Step-by-step explanation:

Similar triangles have angles with the same measures.

  angles in the first triangle are 50°, 60°, 70°.

  angles in the second triangle are 50°, 50°, 80°.

The angles do not have the same values, so the triangles cannot be similar.

_____

<em>Comment on the question</em>

When 2 of the three angles are different, the third angle cannot make the triangles similar. We don't even need to compute the third angle to answer this question.

5 0
3 years ago
Manuela solved the equation 3−2|0.5x+1.5|=2 for one solution. Her work is shown below. 3−2|0.5x+1.5|=2 −2|0.5x+1.5|=−1 |0.5x+1.5
adoni [48]

Answer:

x = - 4

Step-by-step explanation:

Given

3 - 2 |0.5x + 1.5 | = 2 ( subtract 3 from both sides )

- 2 |0.5x + 1.5 | = - 1 ( divide both sides by - 2 )

|0.5x + 1.5 | = 0.5

The absolute value function always gives a positive value, however, the expression inside can be positive or negative, thus

0.5x + 1.5 = 0.5 ( subtract 1.5 from both sides )

0.5x = - 1 ( divide both sides by 0.5 )

x = - 2 ← solution Manuela obtained

OR

-(0.5x + 1.5) = 0.5 ← distribute parenthesis on left side by - 1

- 0.5x - 1.5 = 0.5 ( add 1.5 to both sides )

- 0.5x = 2 ( divide both sides by - 0.5 )

x = - 4 ← other solution to the equation

5 0
3 years ago
Read 2 more answers
What is the equation of the line?
ki77a [65]

Answer:

y=1/2+2

Step-by-step explanation:

go up 1 and right 2 thats how you get 1/2 also its 2 point above the orgin so its +2

remember y=x+b  1/2 is the x(slope) and 2 is b

7 0
2 years ago
Read 2 more answers
HELP PLZ I need help i dont understand it
Stells [14]

Answer:

if it is an equilateral triangle then it should have the same measurements on each side.

Step-by-step explanation:

An equilateral triangle is equal on all three sides, meaning if one side is 24, the rest will be the same/equal.

8 0
3 years ago
Help please (picture)
I am Lyosha [343]

Answer:

scale factor = \frac{1}{2}

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, image to original

scale factor = \frac{B'C'}{BC} = \frac{3}{6} = \frac{1}{2}

5 0
3 years ago
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