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PilotLPTM [1.2K]
3 years ago
8

Plase help need it now!!!!

Mathematics
2 answers:
vladimir1956 [14]3 years ago
6 0

more then likely this answer is going to be 72 by the way it looks

Mariulka [41]3 years ago
6 0

Answer:

72

Step-by-step explanation:

Δ ABC ≈ Δ DEF

AB / DE = 54/9 = 6

If EF = 12 then BC = 6 x 12 = 72

Answer

BC = 72

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What is the equation of the function that is graphed as line a?
34kurt

to get the equation of any straight line we simply need two points off of it, hmmm let's use the points in the picture below for "a".

(\stackrel{x_1}{-4}~,~\stackrel{y_1}{3})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{-3}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-3}-\stackrel{y1}{3}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{(-4)}}}\implies \cfrac{-6}{2+4}\implies \cfrac{-6}{6}\implies -1

\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{3}=\stackrel{m}{-1}(x-\stackrel{x_1}{(-4)}) \\\\\\ y-3=-1(x+4)\implies y-3=-x-4\implies y=-x-1

7 0
2 years ago
Write the equation of a line parallel to the y-axis and passing through the point<br>(-3,-4).​
Daniel [21]

Answer:

x = -3 is the answer. Writing this cause brainly requires a 20 character answer.

8 0
3 years ago
Gill rolls a number cube 78 times. How many times can he expect to roll an odd number greater than 1?
bekas [8.4K]
Im assuming its just a regular number cube with 6 numbers 
there are only 2 odd numbers above 1 ( 3 and 5) 

so the ratio is 2/6 

you want to know how manny times (x) will you roll those numbers out of 78 roll 
the ratio is x/78 

multiply 

(2/6) = (x/78) 

cross multply to give you 6x= 156 and divide by 6 

<span>to give you x = 26 


</span>
3 0
3 years ago
Read 2 more answers
Paul ran a 26 1/5 mile marathon in 2 3/4 hours. Write an inequality to describe the average speeds s of runners who were faster
Scilla [17]

Answer:

  • s > 9 29/55

Step-by-step explanation:

Paul ran a 26 1/5 mile marathon in 2 3/4 hours

<u>Paul's average speed was:</u>

  • distance/time =
  • 26 1/5 : 2 3/4 =
  • 131/5 : 11/4 =
  • 131/5 * 4/11 =
  • 524/55 =
  • 9 29/55 mph

<u>Inequality for the speed of faster runners:</u>

  • s > 9 29/55
6 0
3 years ago
∠WXY and ∠ZXY are adjacent angles. What equation must always be TRUE? m∠WXY=m∠ZXY
Hitman42 [59]

Answer:

m∠WXY+m∠ZXY=m∠WXZ

Step-by-step explanation:

You don't know the angles to be congruent (equal measures), complementary (measures add to 90 deg), or supplementary (measures add to 180 deg); all you know is that they are adjacent, so the sum of the measures of the two smaller angles equals the measure of the larger outer angle.

Answer: m∠WXY+m∠ZXY=m∠WXZ

3 0
3 years ago
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