All Answers 358291 Answers

is it A ?

the answer is 15

Put the 'x' values in to find the 'y' values.... then plot the x,y pairs to draw the line

I'll do the first two

y = 2x +1

    x = -3    

        y  = 2(-3) +1

           y = -5                first ordered pair is (-3,-5)

x=-2

y =2(-2)+1 = -3            next point is  (-2,-3)

Continue with the rest....then plot the points to draw your line.....

Looks to me that 'm' is between   -1   and  -2    ....which answer fits that?

How many did you count?     15 ?      13 ?      What do you think?

collinear means they are on the same line  ......

    I think you can figure out which sets of points are on the same line.....L F E   are....   any more?

The value of a is 1/6.

yes i do

The maximum number of elements is 14.

That is true.

The area of DBEF is 14.

I'll try to answer this....

   how many ways can you choose 2 girls ?   4 C 2 = 6 ways

       then you ned to choose 5 more people for the committee from the remaining 10 people     10 C 5 = 252 ways

6  x  252 = 1512 ways to form committee

Hmmmmm....that does not seem correct.....

You're welcome!    Do you understand the answer? 

Omi gave you the slope , m  ....

    point slope form equation of the line would be

pick one of the points   (x1 y1)

  (y-y1)  = m (x-x1)

(y-5) = 3 (x-(-6))

(y-5) = 3(x+6)

You could use the other point instead

(y-(-1)) = 3 (x-(-8)

(y+1)    = 3 (x+8)           If you graph both of these, you will se they are the same line....

Thank you

= 3^1/2  a^3/2 b^9/2           or       a b⁴ 3^1/2 a^1/2 b^1/2       or   a b⁴ (3ab)^1/2     depending on what format you are looking for.....

Remember SOHCATOA ?     s = opp/hyp      therefore   sin 45 = opp/hyp = z/(15 sqrt2)      the sin of 45= sqrt2/2 

                                                                                            sqrt2/2     = z/(15sqrt2)

                                                                                              ( 15 sqrt2) * sqrt2/2 =z

                                                                                                   z = 15

                                                                                            And the vertical line is also 15  (45 -90-45 triangle)

The top unlabeled angle is 30       

tan 30 = opp/adj = y/15      tan30 =  (sin30/cos30) = 1/2 / sqrt3/2 = 1/sqrt3

1/sqrt3 = y/15

    y = 1/sqrt3    * 15   =~  8.66

See if you can find x     you can use pythagorean theorem   or a trig function  sin cos or tan.....

There are C(6,3) = 20 ways.

We want to distribute 50 votes among 4 categories.  The number of ways is C(49,3) = 18424.

A regular heptagon and a regular 18-gon share a common edge AB, as shown.

Find angle BCD, in degrees.

\(\begin{array}{|rcll|} \hline \mathbf{\angle 1} &=& \dfrac{(7-2)180^\circ}{7}\mathbf{=\dfrac{5*180^\circ}{7}} \\ \hline 2*\angle 2 + \angle 1 &=& 180^\circ \\ 2*\angle 2 &=& 180^\circ - \angle 1 \\ 2*\angle 2 &=& 180^\circ - \dfrac{5*180^\circ}{7} \\ 2*\angle 2 &=& 180^\circ \left(1 - \dfrac{5}{7} \right) \\ 2*\angle 2 &=& 180^\circ \left( \dfrac{2}{7} \right) \\ \mathbf{\angle 2} &=& \mathbf{\dfrac{180^\circ}{7}} \\ \hline \mathbf{\angle 3} &=& \dfrac{(18-2)180^\circ}{18} =\dfrac{16*180^\circ}{18} \mathbf{=160^\circ } \\ \hline \angle 4 &=& 180^\circ - \angle 3 \\ \angle 4 &=& 180^\circ - 160^\circ \\ \mathbf{\angle 4} &=& \mathbf{20^\circ} \\ \hline \mathbf{\angle 5} &=& 180^\circ - \angle 1 \mathbf{= 180^\circ \left( \dfrac{2}{7} \right)} \\ \hline 2*\angle 6 + \angle 4 + \angle 5 &=& 180^\circ \\ 2*\angle 6 + 20^\circ + 180^\circ \left( \dfrac{2}{7} \right) &=& 180^\circ \\ 2*\angle 6 + 180^\circ \left( \dfrac{2}{7} \right) &=& 160^\circ \\ 2*\angle 6 &=& 160^\circ - 180^\circ \left( \dfrac{2}{7} \right) \\ \mathbf{\angle 6} &=& \mathbf{80^\circ - \dfrac{180^\circ}{7}} \\ \hline \angle BCD &=& \angle 2 + \angle 6 \\ \angle BCD &=& \dfrac{180^\circ}{7}+ 80^\circ - \dfrac{180^\circ}{7} \\ \mathbf{\angle BCD} &=& \mathbf{80^\circ} \\ \hline \end{array}\)

I can get into the questions section, but the site started blocking me from the calculator for using AdBlock, about two weeks ago too.  The thing is, I do not use AdBlock, and I have never used AdBlock.  I don't use any other brand of ad blocker either.  I had to find another online calculator to use.  The one I finally chose is https://calculator-1.com/scientific/  

"Two different positive integers less than 100 are randomly chosen and multiplied together. What is the probability that the resulting product is a multiple of 3?"

Prob that first integer is divisible by 3 = 1/3; Prob that first integer is not divisible by 3 followed by 2nd integer that is divisible by 3 = (2/3)*(1/3)

Hence total prob = 1/3 + (2/3)*(1/3)  = 5/9  = 0.55555....

Slope of line = \(\dfrac{-3 - (-12)}{1 - (-2)} = 3\)

\(y + 3 = 3(x - 1)\\ y = 3x - 6\\ \text{When }y = 0,\\ 3x - 6 = 0\\ x = 2\\ \text{So the x-intercept is }2.\)

At what time between 2 and 3' O clock are the hand of clock together exactly ?

\(\begin{array}{|rcll|} \hline t_h &=& \dfrac{12}{11} \times 2 \\ t_h &=& 2.\overline{18}\ \text{hours} \\ &=& 2^h 10^m 54.\overline{54}^s \\ \hline \end{array} \)

Compute the point-slope form equation of the line through (-8,-1) and (-6,5).