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stealth61 [152]
3 years ago
8

Which two triangkes are congruent by the HL theorem? the diagram are not to scale

Mathematics
1 answer:
Troyanec [42]3 years ago
7 0
D) none of the triangle congruent by the HL theorem because a hypotenuse and a side must be congruent to each other triangle for that to work. 
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Archy [21]

Answer:

2

Step-by-step explanation:

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8 0
3 years ago
Y=1/2x +5<br> Y=-3/2x-7<br> Find x and y
gayaneshka [121]
I'm going to use the substitution method. 

If y = - 3/2 - 7, then:

1/2x + 5 = - 3/2x - 7

Combine like terms: 

4/2x = - 12. Mutiply both sides by 2/4 to get x = -12 (2/4)

Simplify to get:

x = - 6.

Plug - 6 back in for x in either equation.

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8 0
3 years ago
Why is the answer to this integral's denominator have 1+pi^2
ss7ja [257]

It comes from integrating by parts twice. Let

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Then

\displaystyle I = e^n \sin(\pi n) - \pi \int e^n \cos(\pi n) \, dn

Apply IBP once more, with

u = \cos(\pi n) \implies du = -\pi \sin(\pi n) \, dn

dv = e^n \, dn \implies v = e^n

Notice that the ∫ v du term contains the original integral, so that

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\displaystyle (1 + \pi^2) I = \left(\sin(\pi n) - \pi \cos(\pi n)\right) e^n

\implies \displaystyle I = \frac{\left(\sin(\pi n) - \pi \cos(\pi n)\right) e^n}{1+\pi^2} + C

6 0
2 years ago
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il63 [147K]

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Step-by-step explanation:

Add up the scores and dividing the total by the number of scores.

5 0
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A newspaper van made 8 stops in one neighborhood of apartments. By Stop 4, there had been 12 newspapers delivered.
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