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Mandarinka [93]

3 years ago

5

Which statement about the ordered pairs(-3, -3), (0,-3)and(3,-3) is not true?

2 answers:

Anuta_ua [19.1K]3 years ago

4 0

The one that is wrong is. C. If all the x’s are different it is a function

kotykmax [81]3 years ago

3 0

(-3, -3) → x = -3 and y = -3

(0, -3) → x = 0 and y = -3

(3, -3) → x = 3 and y = -3

y are the same in all points. Therefore the points:

- lie on the graph of a horizontal line

- lie on the graph of the equation y = -3

- the slope of the line between each pair of points is 0

<h3>Your answer: C) the points do not represent a function.</h3>

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A billboard designer has decided that a sign should have 3 ft margins at the top and bottom and 5 ft margins on the left and rig

elixir [45]

Answer:

The width of billboard is "[x]" and the height of billboard is "[y"]. If total area of billboard is $9000 ft^2$ then $9000=xy$

Step-by-step explanation:

• The total width of billboard is [x]. Therefore the width of printed area will be (x-10) by excluding margin of left and right side.

• The total height of billboard is [y]. Therefore the height of printed area will be [(y-6)] by excluding the margin of top and bottom from the total height.

• To find the printed area of billboard calculations are given below:

$& 9000=xy$

$& y=\frac{9000}{x} \\ & A=(x-10)(y-6) \\ & A=xy-6x-10y+60 \\ & A=x\left( \frac{9000}{x} \right)-6x-10\left( \frac{9000}{x} \right)+60 \\ & A=9060-6x-\frac{9000}{x} \\$

On taking the first order derivative of A

$A'=-6+\left( \frac{90000}{{{x}^{2}}} \right)$

$& \left( \frac{90000}{{{x}^{2}}} \right)-6=0 \\ & 6{{x}^{2}}=90000 \\ & x=\sqrt{15000} \\ & y=\frac{9000}{x}=\frac{90000}{\sqrt{15000}}=10\sqrt{150} \\$

• Hence $x=10\sqrt{150}$ and $y=\frac{900}{\sqrt{150}}$

Learn More about Differentiation Here:

brainly.com/question/13012860

7 0

2 years ago

Read 2 more answers

Solve for b.<br><br> 3 (b−4 )+ 5b = 44<br><br><br> b =

Sergeu [11.5K]

B=7
3(b-4)+5b=44
3b-12+5b=44
8b=44+12
8b=56
b=7

7 0

2 years ago

Which rule describes the transformation that was used to form parallelogram A'B'C'D'

Ainat [17]

The answer would be c because you went left 10 and when you go left its always negative.Then you went down 3 .When going down its also negative

3 0

2 years ago

Below are the jersey numbers of 11 players randomly selected from a football team. Find the range, variance, and standard devia

padilas [110]

Answer:

Option(A) is correct

Jersey numbers are nominal data that are just replacements for names, so the resulting statistics are meaningless.

Step-by-step explanation:

The given data set in the question are ;33, 29, 97, 56, 26, 78, 83, 74, 65, 47, 58

the range can be determined by finding the highest value and subtract it to the lowest value. In this case the values are:

Highest = 97

Lowest = 71

Range = highest value - Minimum value

Range = 97 - 26 = 71

$Range= 71$

mean of the data is the summation of all the numbers in the data set divided by the number of given samples.

Mean = (33 + 29 + 97 + 56+ 26 + 78 + 83 74+ 65 + 47 + 58)/11

= 647/11

$Mean value =58.7$

Now to find the variance of the data set by using below formular

σ²=[ (xᵢ -mean)²]/n-1

[(33-58.7)² +(29-58.7)²+( 97-58.7)²+( 56-58.7)²+( 26 -58.7)²+(78-58.7)²+( 83 -58.7)²+(74-58.7)²+( 65-58.7)²+( 47 -58.7)²+(58 -58.7)²]/10

$Variance=546$

Now, we will calculate standard deviation by taking square root over variance

σ =√(variance)

σ =√(546)

$Standard deviation= 23.4$

Hence, the range is 71 ,variance is 546 and standard deviation is 23.4 therefore,

Option A is the answer that is Jersey numbers are nominal data that are just replacements for names, so the resulting statistics are meaningless.

5 0

2 years ago

Is 3(b+c) equivalent expressions?<br><br>A. True <br><br>B. False

andre [41]

Answer:

Is 3(b+c) equivalent expressions?

A. True

8 0

3 years ago

Read 2 more answers