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3 years ago

Can somebody help me make a word problem of a inequality equation pls

Mathematics

1 answer:

CaHeK987 [17]3 years ago

6 0

Answer:

sure (can i have brainliest?)

Step-by-step explanation:

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Use the given data to find the best predicted value of the response variable. Ten pairs of data yield requals0.003 and the regre

Arada [10]

Answer:

$\hat y=3(2) +2=8$

Step-by-step explanation:

Data given

r=0.003 represent the correlation coefficient

$bar y =5$ represent the sample mean for the y observations

Solution to the problem

We assume that they use least squares in order to find the best regression model. The slope is given by the following formula:

$m=\frac{S_{xy}}{S_{xx}}$

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

And the slope on this case is:

$m=3$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=5$

$\bar y= \frac{\sum y_i}{n}$

And we can find the intercept using this:

$b=\bar y -m \bar x=5-(3*\bar x)=2$

So the line would be given by:

$\hat y=3x +2$

And the best predicted value for x=2 would be:

$\hat y=3(2) +2=8$

3 0

3 years ago

Which sets of values can be the measures of the exterior angles of a triangle? 120°, 110°, 130° 35°, 103°, 122° 123°, 87°, 220°

kodGreya [7K]

Answer:

The values are :

we khow that the sum of a triangle angles is 180°
the sum of each set exterior and interior angle is 360°
so 360+360+360-180 = 900 is the sum of exterior angles of a triangle
we can see no set can satisfy this condition

8 0

3 years ago

Y=2x<br> y=12-x<br><br> systems of equations

Charra [1.4K]

Answer:

x=4 y=8

Step-by-step explanation:

y=2x

y=12-x

Substituiting y value from first equation into second equation.

2x=12-x

3x=12

x=4

y=2(4)=8

y=12-4=8

6 0

3 years ago

Graph of y= 1÷2 cos x-1<br>

vivado [14]

Answer:

Hello my lil Bunny!

❀ _____.______❀_______._____ ❀

y= 1÷2 cos x-1

Vertical Asymptotes: $x = \frac{3\pi }{2} + n\pi$ for any integer $n$

Step-by-step explanation: Graph the trigonometric function using the amplitude, period, phase shift, and vertical shift.

Amplitude: None

Period: $2\pi$

Phase Shift: 0 (0to the right)

Vertical Shift: -1

Hope this helped you.

Could you maybe give me breainliest..?

❀ _____.______❀_______._____ ❀

8 0

3 years ago

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPp

mars1129 [50]

Answer:

m∠SVT = 79*

Step-by-step explanation:

8y - 33 = 5y + 9

8y = 5y + 42

3y = 42

y = 14

_____

5y + 9

5(14) + 9

70 + 9

7 0

3 years ago