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TiliK225 [7]
3 years ago
8

What is BC? Enter your answer in the box?

Mathematics
2 answers:
fgiga [73]3 years ago
8 0

the tickmarks on the vertices of B and C mean that those angles are twins, which means that the sides AB = AC, which means is an isosceles triangle.

now if AB = AC, then

\bf 8x-4=5x+11\implies 3x=15\implies x=\cfrac{15}{3}\implies \boxed{x=5} \\\\\\ BC\implies 4x-2\implies 4(5)-2\implies 18

Rufina [12.5K]3 years ago
7 0

Answer:

18 is your answer


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How can you tell from the equation of a rational function if the function has a hole in the graph ( a removable discontinuity) a
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Consider that,

x^2+4x+4 = (x+2)(x+2)

x^2+7x+10 = (x+2)(x+5)

Dividing those expressions leads to

(x^2+4x+4)/(x^2+7x+10) = (x+2)/(x+5)

The intermediate step that happened is that we have (x+2)(x+2) all over (x+2)(x+5), then we have a pair of (x+2) terms cancel as the diagram indicates (see below). This is where the removable discontinuity happens. Specifically when x = -2. Plugging x = -2 into (x+2)/(x+5) produces an output, but it doesn't do the same for the original ratio of quadratics. So we must remove x = -2 from the domain.

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3 years ago
There are 1200 students at Sophie’s school. One student’s name will be drawn at random to win a new bike. What is the probabilit
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8 0
4 years ago
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Richard estimates that he can apply fertilizer to 4,486 square feet of grass in 3/4 hour. How many square feet of grass can Rich
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3 years ago
What is the area of the circle?
Bumek [7]

Answer:

363

Step-by-step explanation:

Formula for area of a circle

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Where r = radius

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( Also note that the question says to use 3 for π )

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3 years ago
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