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3 years ago

Which triangles are similar?

Mathematics

1 answer:

Rainbow [258]3 years ago

7 0

Answer:

triangle a and b

Step-by-step explanation:

because its common knowledge

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Simplify <img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20-%2036" id="TexFormula1" title="x^{2} - 36" alt="x^{2} - 36" align="abs

Alexxandr [17]

Answer:

${x}^{2} - 36 \\ = (x + 6)(x - 6)$

Step-by-step explanation:

x^2-36

(x+6) ( x-6)

it's helpful to you

6 0

3 years ago

Read 2 more answers

A leprechaun places a magic penny under a girls pillow. The next night there are 2 magic pennies under her pillow. The following

kiruha [24]

Answer:

After 47 days she will have more than 90 trillion pennies.

Step-by-step explanation:

At the beginning there was 1 penny. At the second day the amount of pennies under the pillow became 2.

The amount of pennies doubled each day. So the series is,

$1,2,4,8,16,32,.....$

This series is in geometric progression.

As the pennies from each of the previous days are not being stored away until more pennies magically appear so the sum of series will be,

$S_n=\dfrac{a(r^n-1)}{r-1}$

where,

a = initial term = 1,

r = common ratio = 2,

As we have find the number of days that would elapse before she has a total of more than 90 trillion, so

$\Rightarrow 90\times 10^{12}\le \dfrac{1(2^n-1)}{2-1}$

$\Rightarrow 90\times 10^{12}\le \dfrac{2^n-1}{1}$

$\Rightarrow 90\times 10^{12}\le 2^n-1$

$\Rightarrow 2^n\ge 90\times 10^{12}+1$

$\Rightarrow \log 2^n\ge \log (90\times 10^{12}+1)$

$\Rightarrow n\times \log 2\ge \log (90\times 10^{12}+1)$

$\Rightarrow n \ge \dfrac{\log (90\times 10^{12}+1)}{\log 2}$

$\Rightarrow n \ge 46.4$

$\Rightarrow n\approx 47$

8 0

3 years ago

Identify the factors of x2 + 36y2.

aliya0001 [1]

Answer:

Step-by-step explanation:https://socialmedialist.org/tat-ca-cac-mang-xa-hoi.html

8 0

4 years ago

I need help please :) Answer opts. 35 30 22 28

Savatey [412]

Answer:28

Step-by-step explanation:

6 0

4 years ago

Which is an equation of the line that passes through the points (-1,9) and (4, 24)?

choli [55]

Answer:

y = 3x + 12

Step-by-step explanation:

Slope (m) = 24-9/4-(-1)

= 25/5

= 3

Using point (-1 , 9)

y - y1 = m (x - x1)

y - 9 = 3 (x - -1)

y - 9 = 3 (x + 1)

y - 9 = 3x + 3

y = 3x + 3 + 9

y = 3x + 12

4 0

3 years ago

Which triangles are similar?​

Which triangles are similar?