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azamat
3 years ago
9

A logo is made up of four congruent triangles.16cm21cmFind the perimeter of the logo.​

Mathematics
1 answer:
lora16 [44]3 years ago
7 0

Answer:17cm 5 cm°Step-by-step explanation:

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Another one that is even more confusing because it is a fraction.
kogti [31]

Answer:

2/16

Step-by-step explanation:

i just doubled he equation

7 0
3 years ago
What is 19 x 3.564239
Phoenix [80]
67.720541 multiply 19 by 3.564239
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3 years ago
Read 2 more answers
A certain car depreciates such that its value at the end of each year is p % less than its value at the end of the previous year
icang [17]

Answer:

b(b/a)^2

Step-by-step explanation:

Given that the value of the car depreciates such that its value at the end of each year is p % less than its value at the end of the previous year and that car was worth a dollars on December 31, 2010 and was worth b dollars on December 31, 2011, then

b = a - (p% × a) = a(1-p%)

b/a = 1 - p%

p% = 1 - b/a = (a-b)/a

Let the worth of the car on December 31, 2012 be c

then

c = b - (b × p%) = b(1-p%)

Let the worth of the car on December 31, 2013 be d

then

d = c - (c × p%)

d = c(1-p%)

d = b(1-p%)(1-p%)

d = b(1-p%)^2

d = b(1- (a-b)/a)^2

d = b((a-a+b)/a)^2

d = b(b/a)^2 = b^3/a^2

The car's worth on December 31, 2013 =  b(b/a)^2 = b^3/a^2

4 0
3 years ago
Find the value of x<br> x=
Lena [83]

9514 1404 393

Answer:

  x = 65

Step-by-step explanation:

The sum of exterior angles of a polygon is 360°.

  40 + x + 77 + 2x + 45 = 360

  3x + 165 = 360 . . . . simplify

  x + 55 = 120 . . . . . . divide by 3

  x = 65 . . . . . . . . . . . subtract 55

7 0
3 years ago
How do I solve this?
Hunter-Best [27]

9514 1404 393

Answer:

  • x = 10
  • y = 19

Step-by-step explanation:

Consecutive interior angles between parallel lines are supplementary.

Let's start with x.

  (8x +40)° +(6x)° = 180°

  14x +40 = 180 . . . . . . . . . divide by °, collect terms

  14x = 140 . . . . . . . . . subtract 40

  x = 10 . . . . . . . . divide by 14

__

We can use the same approach for y:

  (7y)° +(3y -10)° = 180°

  10y = 190 . . . . . . . . . . . divide by °, add 10, collect terms

  y = 19 . . . . . . . . . . . divide by 10

5 0
2 years ago
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