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3 years ago

True or False? The segments shown below could form a triangle?

Mathematics

2 answers:

charle [14.2K]3 years ago

7 0

True

explanation: none

scoundrel [369]3 years ago

6 0

Answer:

True

Step-by-step explanation:

First start at B point than go to C point than go to A point

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La circunferencia C está centrada en P(6;0) Y su radio es r=3. Calcular:

Luda [366]

Answer:

the answer is easy.

Step-by-step explanation:

4 0

3 years ago

Write the equation of the line in the slope intercept form if the line passes through (3,5) and (5,9) show all your work

Feliz [49]

Answer:

slope (m)= y2-y1 /x2 -x1

Step-by-step explanation:

or m= ((9-5)/ (5-3)

or,m= 4/2

or,m =2

4 0

3 years ago

Read 2 more answers

Calculate the sample standard deviation and sample variance for the following frequency distribution of hourly wages for a sampl

lidiya [134]

Answer:

(a) The sample variance is 16.51

(a) The sample standard deviation is 4.06

Step-by-step explanation:

Given

$\begin{array}{cc}{Class} & {Frequency} & 8.26 - 10.00 & 20 &10.01-11.75 & 38 &11.76 - 13.50& 36 & 13.51-15.25 &25&15.26-17.00 &27 &\ \end{array}$

Solving (a); The sample variance.

First, calculate the class midpoints.

This is the mean of the intervals.

i.e.

$x_1 = \frac{8.26+10.00}{2} = \frac{18.26}{2} = 9.13$

$x_2 = \frac{10.01+11.75}{2} = \frac{21.76}{2} = 10.88$

$x_3 = \frac{11.76+13.50}{2} = \frac{25.26}{2} = 12.63$

$x_4 = \frac{13.51+15.25}{2} = \frac{28.76}{2} = 14.38$

$x_5 = \frac{15.26+17.00}{2} = \frac{32.26}{2} = 16.13$

So, the table becomes:

$\begin{array}{ccc}{Class} & {Frequency} & {x} & 8.26 - 10.00 & 20&9.13 &10.01-11.75 & 38 &10.88&11.76 - 13.50& 36 &12.63& 13.51-15.25 &25&14.38&15.26-17.00 &27 &16.13\ \end{array}$

Next, calculate the mean

$\bar x = \frac{\sum fx}{\sum f}$

$\bar x = \frac{20*9.13 + 38 * 10.88+36*12.63+25*14.38+27*16.13}{20+38+36+25+27}$

$\bar x = \frac{1845.73}{146}$

$\bar x = 12.64$

Next, the sample variance is:

$\sigma^2 = \frac{\sum f(x - \bar x)^2}{\sum f - 1}$

So, we have:

$\sigma^2 = \frac{20*(9.13-12.63)^2 + 38 * (10.88-12.63)^2 +...........+27 * (16.13 -12.63)^2}{20+38+36+25+27-1}$

$\sigma^2 = \frac{2393.6875}{145}$

$\sigma^2 = 16.51$

The sample standard deviation is:

$\sigma = \sqrt{\sigma^2}$

$\sigma = \sqrt{16.51}$

$\sigma = 4.06$

6 0

2 years ago

?????????!??!!?!?!?!?!?!?!?

vivado [14]

Answer:

Option 4: y > 2x

x + 2y < -8

Step-by-step explanation:

Taking first equation:

y > 2x

Putting x = 0

y > 0

Putting y = 0

0 > x

So the blue line in drawn according to first equation.

Taking second equation:

x + 2y < -8

Putting x = 0

2y < -8

y < - 4

putting y = 0

x < -8

So the red line is drawn accordingly.

i hope it will help you!

7 0

3 years ago

Is 4y^2 + 9 = -4 a linear equation?

bekas [8.4K]

Answer:

No.

Step-by-step explanation:

The exponent of y is 2, which is not 1, so the equation is 2nd degree, <em>not linear</em> (1st degree).

6 0

3 years ago