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luda_lava [24]
3 years ago
15

Write a proof. Given: AB * BE = CB * BD Prove: Triangle ABC ~ Triangle DBE

Mathematics
1 answer:
tester [92]3 years ago
7 0

Answer: Both triangles create a bisected angle between themselves.

Step-by-step explanation: There is a cross section where the angles are lined up to be the same or whatever.

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An accelerated life test on a large number of type-D alkaline batteries revealed that the mean life for a particular use before
joja [24]

Answer:

option (d) 16.6 and 21.4

Step-by-step explanation:

Data provided in the question:

The mean life for a particular use before they failed = 19.0 hours

The distribution of the lives approximated a normal distribution

The standard deviation of the distribution = 1.2 hours

To find:

The values between which 95.44 percent of the batteries failed

Now,

In Normal distribution, the approximately 95% ( ≈ 95.44% of all values ) falls within 2 standard deviations of the mean

Therefore,

Upper limit = Mean + 2 × standard deviation

⇒ Upper limit = 19.0 + 2 × 1.2 = 21.4

Lower  limit = Mean - 2 × standard deviation

⇒ Lower  limit = 19 - 2 × 1.2 = 16.6

Hence,

the answer is option (d) 16.6 and 21.4

8 0
2 years ago
amiee wants to order DVDs from amazon each DVD costs 8.49 and shipping for the entire order is 5 dollars she only has 70 dollars
Neporo4naja [7]
You can only get 7 because you could get 8 of them but you need to remember that shipping is 5 dollars. 70/8.49 is 8.24499411 but it would be 7 dvds.
7 0
2 years ago
Need help asap please!!<br> This is the only one i don’t know i’m stuck!
lyudmila [28]

Answer:

Reminder that is this form  a(b)^x  where  a > 0

When   b > 0  but < 1 that is a decay function

When   b > 1 than its a growth function

Step-by-step explanation:

So following this you can figure out the answer

g(x)=0.3(x)      

this is neither since there is no exponent (linear)

H=72(56)^t    

this is growth since b  = 56

A=(43)^t        

this is growth since b  = 43 ("a" is understood as "1")

H=5.9(0.82)^t      

this is decay since b =  0.82

y=0.8(3.6)^t      

this is growth since b = 3.6

f(t)=0.72(15)^t    

this is growth since b  = 14  

A=49(8)^t      

this is growth since b  = 8

6 0
3 years ago
Find the slope of the line that passes through (-34, 72) and (31, 27).
ZanzabumX [31]
The answer i got is -9/13
8 0
3 years ago
Read 2 more answers
Parker ate one-third the number of raisins Devan ate.
zaharov [31]
Parker ate 1/3 the number of raisins Devan ate...
P = 1/3d.....can also be written as P = d/3....answer is C
4 0
3 years ago
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