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DiKsa [7]
3 years ago
6

Complete the solution of the equation fine the value of y when x = 9 3x+4y=43

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
6 0
3(9)=27
27+4Y=43
subtract 27 from both sides
4Y=16
devide both sides by 4
Y=4
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Which graph represents the function of f(x) = the quantity of 9 x squared minus 36, all over 3 x plus 6?
love history [14]
F ( x ) = ( 3 x + 6 ) ( 3 x - 6 ) / ( 3 x + 6 ) = 3 x - 6
and for domain : 3 x + 6  ≠ 0
3 x ≠ - 6
x ≠ - 2
anwser graph of 3 x - 6, with discontinuity at - 2
6 0
2 years ago
For a standard normal random variable, what z-score has (a) probability 0.175 to the right?
Mumz [18]
Answer: 0.935

Explanation: 

Let S = z-score that has a probability of 0.175 to the right. 

In terms of normal distribution, the expression "probability to the right" means the probability of having a z-score of more than a particular z-score, which is Z in our definition of variable Z. In terms of equation:

P(z ≥ S) = 0.175   (1)

Equation (1) is solvable using a normal distribution calculator (like the online calculator in this link: http://stattrek.com/online-calculator/normal.aspx). However, the calculator of this type most likely provides the value of P(z ≤ Z), the probability to the left of S.

Nevertheless, we can use the following equation:

P(z ≤ S) + P(z ≥ S) = 1 
⇔ P(z ≤ S) = 1 - P(z ≥ S)  (2)

Now using equations (1) and (2):

P(z ≤ S) = 1 - P(z ≥ S)
P(z ≤ S) = 1 - 0.175 
P(z ≤ S) = 0.825

Using a normal distribution calculator (like in this link: http://stattrek.com/online-calculator/normal.aspx),

P(z ≤ S) = 0.825
⇔ S = 0.935 

Hence, the z-score of 0.935 has a probability 0.175 to the right.
7 0
3 years ago
Use the tax tables to determine the tax for the given filing status and taxable income amount:
NeX [460]

Answer:

i cant even see the picture

7 0
2 years ago
Donald is 38 years younger than Natalie. 5 years ago, Natalie's age was 3 times Donald's age. How old is Donald now?
Svetlanka [38]

9514 1404 393

Answer:

  24

Step-by-step explanation:

Let d represent Donald's age now. Then Natali's age now is d+38. The age relationship 5 years ago was ...

  (d+38) -5 = 3(d -5)

  d +33 = 3d -15 . . . . . eliminate parentheses

  48 = 2d . . . . . . . . . . . add 15-d

  24 = d . . . . . . . . . . . . . divide by 2

Donald is 24 years old now.

_____

<em>Alternate solution</em>

You can also work this by considering that 5 years ago, Natalie's age was more than Donald's age by twice Donald's age then. Hence Donald was 38/2 = 19 at that time. Now, Donald is 19+5 = 24.

4 0
2 years ago
The diagram shows a prism.
mixer [17]
<h3>Correct Response;</h3>
  • <u>The drawing of the front and side elevation is attached</u>;
<h3 /><h3>Construction Method used to Draw the Required Elevation</h3>

The given scale = 2 squares to 1 m

Number of squares in the plane on which the front elevation is to be drawn = 16 squares

<h3>Front elevation;</h3>

The number of squares in the width of the front elevation = 4 squares

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Number of squares in the slant surface of the = 3 squares by 4 squares

  • <u>Please find attached the drawing of the </u><u>front elevation</u><u> of the given </u><u>diagram</u>.

<h3>Side elevation;</h3>

Using the same pattern as above, we have that the side elevation is given as follows;

The width of the lower side of the side elevation = 2 meters = 4 squares

The height of the side elevation = 2 meters = 4 squares

  • <u>Please find attached the drawing of the required front and side elevation</u>;

Learn more about the front and side (view) elevation of an object here:

brainly.com/question/2875687

8 0
2 years ago
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