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nekit [7.7K]
3 years ago
5

If 3x-18=186 what is the value of x

Mathematics
2 answers:
pashok25 [27]3 years ago
6 0

Answer:

x = 68

Step-by-step explanation:

3x-18=186\\\\3x=186+18\\\\3x=204\\\\x= \frac{204}{3}\\\\x=68

JulsSmile [24]3 years ago
4 0
The value of x is a number :)
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What is the axis of symmetry for the graph of this equation?
den301095 [7]

Answer:

x=1

Step-by-step explanation:

x=-b/(2a)

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b=-4

c=2

-(-4)/(2*2)=4/4 or 1

x=1

4 0
3 years ago
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What is the value of d?<br> A.100 B.84 C.50 D.80
GREYUIT [131]

Answer:

A. 100

Step-by-step explanation:

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2 years ago
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A sample of 100 wood and 100 graphite tennis rackets are taken from the warehouse. if 13 wood and 10 graphite are defective and
Nimfa-mama [501]

Let's split the problem in non-intersecting subsets: we have 87 good wood racquets, 13 defective wood rackets, 90 good graphite racquets, 10 defective graphite rackets.


The probability that the racket is wood or defective covers the following subsets: good wood, defective wood and defective graphite, which have, respectively, 87, 13 and 10 elements.


Since the total is 200 elements, the probability is


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8 0
3 years ago
Find x and decide if that side (with the x) is an Altitude
irga5000 [103]

Answer:

  1. b = 15
  2. c = 51
  3. c = 100
  4. b = 25.75

Step-by-step explanation:

Using the Pythagoras theorem equation:

c^{2}=a^{2}+b^{2}

Where 'c' is the hypotenuse and 'b' and 'a' the sides of the right triangle.

1) Here c = 17, a = 8 and b = ?

Then, using the above equation we can find the side b.

17^{2}=8^{2}+b^{2}

b=\sqrt{225}

b=15

2) Here a = 24, b = 45 and c = ?  

c=\sqrt{24^{2}+45^{2}}

c=51

3)  Here a = 28, b = 96 and c = ?

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c=100

4)  Here a = 17, b = ? and c = 28

b=\sqrt{28^{2}-11^{2}}  

b=25.75

Just in the 4 case x is an altitude.

I hope it helps you!

         

3 0
3 years ago
He equation 2x + 8 = 2(x + 5) has
Illusion [34]

Answer:

No solution.

Step-by-step explanation:

The equation 2x + 8 = 2(x + 5) has no solution  as we see if we simplify it:

2x + 8 = 2x + 10

2x - 2x = 10 -8

0 = 2 which is absurd.

6 0
3 years ago
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