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expeople1 [14]
3 years ago
11

Can someone please tell me what goes in the y spot

Mathematics
2 answers:
Nostrana [21]3 years ago
6 0

Answer:

Step-by-step explanation:

Given the function

y = —⅔x + 7

The domain of the function is

The input,

x = { -12, -6, 3, 15}

When x = -12 what is y

y = —⅔x + 7

y = — ⅔ × — 12 + 7

Note that, - × - = +

y = 8 + 7

y = 15

Then, when x = -12, y = 15

When x = -6

y = —⅔x + 7

y = — ⅔ × — 6 + 7

Note that, - × - = +

y = 4 + 7

y = 11

Then, when x = -6, y = 11

Also, x = 3

y = —⅔x + 7

y = — ⅔ × 3 + 7

Note that, -×+ = -

y = —2 + 7

y = 5

Then, when x = 3, y = 5

Also, x = 15

y = —⅔x + 7

y = — ⅔ × 15 + 7

Note that, - × + = -

y = — 10 + 7

y = —3

Then, when x = 15 , y = —3

Check attachment

This is one to one mapping

x= -6 y= 11

x= 3 y= 5

x= 15 y= -3

x= -12 y=15

nadya68 [22]3 years ago
5 0

Answer:

x= -6  y= -12

x= 3   y= 5    

x= 15  y= 15

x= -6  y=15

Sorry I don't know how to do it in roman numerals but here we go

-XLL

LLL

XV

-VL

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Step-by-step explanation:

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3 years ago
What is 7/2 as a mixed fraction
BaLLatris [955]
⇒ 7<span>/2 as a fraction 

Solutions 

To convert 7/2 into a mixed number you have to find how many times 2 goes into 7. 

Calculations 

2 x 1 = 2 
2 x 2 = 4 
2 x 3 = 6 


2 goes 3 times in 7 
We cant do 2 x 4 because it would be bigger then 7

</span>≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
<span>
To make the fraction to 7 we have to add 1 to 6 

</span>≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡<span>

Simplify  

</span>3 \frac{1}{2}

2 x 3 = 6 
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5 0
3 years ago
In an analysis of healthcare data, ages have been rounded to the nearest multiple of 5 years. The difference between the true ag
Mashcka [7]

Answer:

The correct answer is D. 0.77

Step-by-step explanation:

X_i \text{ is the difference between true and reported age. where i = 1,2,3......48 }\\\text{The rounded age are uniformly distributed. So, }X_i = 0\\\\and,\thinspace O_{X_i}^2=\frac{\text{(Upper Bound - Lower Bound})^2}{5\times 2.5\text{ ( Rounded value )}}\\\\O_{X_i}^2=\frac{(2.5 + 2.5)^2}{12}\approx 2.083\\\\O_X_i=1.443

\bar{X_{48}}=\frac{X_1+X_2+.......+X_{48}}{48}\\\\\bar{X_{48}}=\frac{\frac{48}{X_i}}{48}=0\\\\O_{\bar{X}_{48}}^2=\frac{48\cdot O_{X_i}^2}{48^2}=\frac{O_{X_i}^2}{48}\\\\\text{So, }\bar{X_i}\text{is approximately normal with mean 0 and standard deviation = }\\\\\frac{1.443}{\sqrt{48}}\approx 0.2083

=Pr[\frac{-1}{4}\leq \bar{X}_{48}\leq \frac{1}{4}]\\\\=Pr[\frac{-0.25}{0.2083}\leq Z\leq \frac{0.25}{0.2083}]\\\\=Pr[-1.2\leq Z\leq 1.2]\\=Pr(Z\leq 1.2)-Pr(Z\leq -1.2)\\=Pr(Z\leq 1.2)-(1-Pr(Z\leq 1.2))\\=2\times 0.8849 -1\text{ ( Z value for 1.2 is 0.8849 )}\\\approx 0.77

Hence, the correct answer is 0.77


7 0
3 years ago
X square-11x-26 of algebraic expressions​
Oxana [17]

Answer:

I hope it helped u

Step-by-step explanation:

6 0
3 years ago
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