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Alex_Xolod [135]
2 years ago
12

Solve for y 2y= -3x + 4

Mathematics
1 answer:
Margaret [11]2 years ago
5 0

Answer:

y = -1/3x + 2

Step-by-step explanation:

Divide everything by 2

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Given: a||b, and c||d, m∠4=45°<br> Find: the measures of angles 1, 2, and 3
Sophie [7]

Answer:

<2=45 degrees

Step-by-step explanation:

7 0
3 years ago
3. A company with loud machinery needs to cut its sound intensity to 44% of its original level. By how many decibels would the l
sergeinik [125]

Answer:   <em>3.   The correct option is:  A) 3.57 decibels.</em>

<em>6.   The correct option is:  B) ln(\frac{x^2}{c^5})</em>

Step-by-step explanation:

3.    Sound intensity is cut to 44% of its original level. That means, if the original sound intensity was 100, then now sound intensity will be 44.

So,  I_{0}= 100 and I= 44

Using the formula L= 10log(\frac{I}{I_{0}}), we will get.....

L= 10log(\frac{44}{100})\\ \\ L= 10log(0.44)\\ \\ L= 10(-0.3565...)=-3.565...\approx -3.57

<em>(Rounded to the nearest hundredth)</em>

So, the loudness would be reduced by 3.57 decibels.


6.    Given expression is:    2ln(x) - 5ln(c)

First applying the property m*log(x)= log(x^m) , we will get.....

ln(x^2)-ln(c^5)

Now using the formula, log(a)-log(b)= log(\frac{a}{b}), we will get....

ln(x^2)-ln(c^5) = ln(\frac{x^2}{c^5})

Thus, the answer as a single natural logarithm is   ln(\frac{x^2}{c^5})

8 0
3 years ago
What is the probability of drawing yellow marble followed by a red marble from a bag containing 12 yellow marbles 14 red marbles
Zinaida [17]
The probability of drawing both without replacing either is :

14/41 * 12/40 = 7/41 * 3/5 = 21/205

The probability of drawing both WITH replacement is:

14/41 * 12/41 = 168/ 1681
7 0
3 years ago
Which graph is an example of a function?<br> A) <br> B) <br> C) <br> D)
Mama L [17]
The only example I saw was example B
3 0
3 years ago
Read 2 more answers
The cost, £C, of hiring a lorry to travel n miles is given by
zysi [14]
Part A:
C= a + bn

Make the two equations out of the words:
82 = a + b100 * 2.5     = 205 = a + b250
157 = a+ b250

Subtract the two,
205 = a + b250
- ( 157 = a + b250)
48 = a

Find b by substituting in a:
82 = a + b100
82 = 48 + b100
34 = b100
b = 0.34
Answer for part a: a = 48 , b = 0.34

Part B:
C = a +bn    <- when n = 300   , put in a and b, then solve
C = 48 + 0.34(300)
C = 48 + 102
C = 150

Cost when hiring a lorry to travel 300 miles is 150 pounds
7 0
3 years ago
Read 2 more answers
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