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garri49 [273]
3 years ago
14

Refer to the figure below to complete the following problem.

Mathematics
1 answer:
IRINA_888 [86]3 years ago
3 0

Answer:

38

Step-by-step explanation:

5x-7=3x+ll

5x=3x+18

2x/2=18/2

x    =9

5 x 9 -7 = 36

3 x 9 + 11=36

m D =36

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Find the value of x and find the value of polygon JKLM​
Leokris [45]

Answer:

  1.  (B)  73

  2. r = 15

Step-by-step explanation:

1. The sum of angles in a triangle is 180°.

  62° +45° +k° = 180

  k = 180 -107

  k = 73

__

2. The sum of exterior angles of any polygon is 360°.

  4r° +7r° +5r° +8r° = 360°

  24r = 360 . . . . . . . . . . . . . collect terms, divide by °

  r = 360/24 . . . . . divide by 24

  r = 15

7 0
3 years ago
Find the average rate of change for the f(x) = 7(1.02)^x for x = 3 to x = 5.
shusha [124]
No Solution because x=5 is not a function y In terms of one variable
7 0
3 years ago
Y = ax + 4x - 2 is x= 1. What is the value of a?
puteri [66]
Y = ax + 4x - 2 x= 1
y = a(1) + 4(1) -2
y = a + 2
y - 2 = a
6 0
3 years ago
Iodine-125 has a half-life of about 60 days.
Murljashka [212]

62.5 mg sample will remain after 240 days

Step-by-step explanation:

Given

Half-life = T =  60 days

The formula for calculating the quantity after n half lives is given by:

N = N_0(\frac{1}{2})^n

Here

N is the final amount

N_0 is the initial amount

n is the number of half lives passed

The number of half lives are calculated by dividing the time for which the remaining quantity has to be found by half life

The quantity has to be calculated for 240 days so,

n = \frac{240}{60}\\n = 4

Given

N_0 = 1000\ mg

Putting the values in the formula

N = 1000 (\frac{1}{2})^4\\=1000 * \frac{1}{16}\\=\frac{1000}{16}\\=62.5\ mg

Hence,

62.5 mg sample will remain after 240 days

Keywords: Half-life, sample

Learn more about half-life at:

  • brainly.com/question/11286417
  • brainly.com/question/12973601

#LearnwithBrainly

3 0
3 years ago
It's costs $2.80 to make a sandwich at the local deli shop to make a profit the deli sells it at a price that is 170% of the cos
docker41 [41]
The sandwich is sold for $4.76

Explanation-

Divide the total cost of the sandwich by 100 to find what 1% would equal (0.028) then multiple that by the percent the deli sells the sandwich( 170%) which gets you $4.76
8 0
3 years ago
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