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True [87]
3 years ago
7

The figure shows a circle within a square. Find the

Mathematics
1 answer:
slega [8]3 years ago
7 0

Step-by-step explanation:

let the side length of the square = the diameter of the circle = X

therefore the circumference of the circle is

π×X or 3.14X units

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If the length of one side of an equilateral triangle measures 40 cm, what is the length of its altitude? State the letter of the
mamaluj [8]

Answer:

the length of its altitude is 34.64 cm

Step-by-step explanation:

Given;

length of a side of the equilateral triangle, L = 40 cm

All the sides of an equilateral triangle are equal

To get the altitude of the triangle, draw a perpendicular line from one of the vertices to intersect the opposite side.

Let the altitude = h

half of the opposite side intersected by the altitude = 20 cm

Apply Pythagoras theorem to determine the altitude 'h'

h² = 40²  -  20²

h² = 1200

h = √1200

h = 34.64 cm

Therefore, the length of its altitude is 34.64 cm

7 0
3 years ago
Three candidates were running for president of a student council. Altogether, 1524 students cast a vote in the election. The sec
Leya [2.2K]

Answer:

48%

Step-by-step explanation:

The total number of votes casted = 1524 votes = 100%

Let a = votes of first place candidate

b = votes of second place candidate

c = votes of third place candidate

The second place candidate had 140 votes less than the winner

b = a - 140 votes...... Equation 1

Hence,

a = b + 140.......... Equation 2

Second place candidate has 395 votes more than the last place candidate

b = c + 395.......Equation 3

Hence,

c = b - 395......Equation 4

a + b + c = 1524 votes....... Equation 5

If a = b + 140 and c = b - 395

The number of votes by b(second place candidate ) =

b + 140 + b + b - 395 = 1524 votes

3b = 1524 + 395 - 140

3b = 1779

b = 1779/3

b = 593 votes.

Therefore, the second place candidate had 593 votes.

Now we can calculate how many votes, the other candidates had.

The second place candidate had 140 votes less than the winner

Votes for the winner( first place candidate)

b = a - 140 votes...... Equation 1

Hence,

a = b + 140.......... Equation 2

Since b = 593

a = 593 + 140

a = 733 votes

Votes for the last place candidate

Since, Second place candidate has 395 votes more than the last place candidate

b = c + 395.......Equation 3

Hence,

c = b - 395......Equation 4

b = 593

c = 593 - 395

c = 198

From the above calculation,

a = votes of first place (winner) candidate = 733

b = votes of second place candidate = 593

c = votes of third(last) place candidate = 198

In the above question, we were asked to calculate the percentage of all the votes cast were received by the winner.

This is calculated as

= Voted received by winner/ Total number of votes casted × 100

= 733/1524 × 100

= 48.09711286%

Approximately to the nearest percent = 48%

Therefore, the percentage of all the votes cast were received by the winner = 48%

5 0
3 years ago
Write a real-world problem to go with this equation: 43 x 7 = 301
KengaRu [80]

Answer:

The professor wanted to order his class of 43 new handbooks. Each handbook was $7. What will be the total amount he will be spending on handbooks?

3 0
3 years ago
Read 2 more answers
A polygon has an angle sum of 180 and each angle measures 60. What is the polygon?
Vladimir79 [104]
Idk what the answer  is to your question

6 0
3 years ago
I need help on this please (3/4)(5/3)
Step2247 [10]

Answer is 1.25 and converted into a fraction is 5/4 converted into a mixed fraction is 1 1/4

6 0
3 years ago
Read 2 more answers
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