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2 years ago

Solve 1. 9x = 36 x = 2. x/4 - 3 = 6 =

Mathematics

1 answer:

sdas [7]2 years ago

7 0

Answer:

1.x=4

Step-by-step explanation:

because 9*4 is 36 and 36/9 is 4

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The formula for the area of a sector with a central angle in radians is ?

zlopas [31]

$S= \frac{r^2*\alpha}{2}$

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2 years ago

sketch the curve represented by the parametric equations (indicate the orientation of the curve), write the corresponding rectan

pychu [463]

Answer:

Reduced equaton is $5x-3y+\frac{28}{3}=0$ .

Step-by-step explanation:

Given parametric equation is,

$x=3t-5$ and $y=5t+1$

Now, $x=3t-5\implies t=\frac{x+5}{3}$ substitute in second equation we get,

$y=\frac{5}{3}(x+5)+1$

$y=\frac{5}{3}x+\frac{28}{9}$

$\implies 5x-3y+\frac{28}{3}=0$

which is the corresponding rectangular equation after eliinating the parameter.

Now consider,

$y=\frac{5}{3}x+\frac{28}{9}$

Of which,

Slope : $\frac{5}{3}$

when,

$x=0, y=\frac{28}{9}=3.1$

$x=1, y=\frac{43}{9}=4.8; x=-1, y=\frac{13}{9}=1.4$

$x=2, y=\frac{58}{9}=6.4; x=-2, y=\frac{-2}{9}=-0.2$

$x=3, y=\frac{73}{9}=8.1; x=-3, y=\frac{-17}{9}=-1.8$

$x=4, y=\frac{88}{9}=9.8; x=-4, y=\frac{-32}{9}=-3.6$

$x=5, y=\frac{103}{9}=11.4; x=-5, y=\frac{-47}{9}=-5.2$

ans so on. Thus sketching th curve will look like given,

5 0

2 years ago

What does four over five take away two over three eqall

BartSMP [9]

The answe to this question is 0.133333333

5 0

2 years ago

Read 2 more answers

PLS HELP ME

lianna [129]

Answer: Percentage increase: 57%

Percent increase if the airline charges an additional 50: 14.5% or 15%

Depends if your teacher wants more accurate results with the decimal, or rounded up with 15.

Step-by-step explanation:

Ill explain in the comments bc for some reason its not letting me put it here

7 0

2 years ago

Application of the least squares method results in values of the y-intercept and the slope that minimizes the sum of the squared

alisha [4.7K]

Answer:

The least squares method results in values of the y-intercept and the slope, that minimizes the sum of the squared deviations between the observed (actual) value and the fitted value.

Step-by-step explanation:

The method of least squares works under these assumptions

The best fit for a data collection is a function (sometimes called curve).
This function, is such that allows the minimal sum of difference between each observation and the expected value.
The expected values are calculated using the fitting function.
The difference between the observation, and the expecte value is know as least square error.

7 0

2 years ago