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IRINA_888 [86]
4 years ago
5

Is -7 9 = -9 7 true, false, or open?

Mathematics
1 answer:
REY [17]4 years ago
3 0
False because negative is different from positive and it was vise versa from the another set of number.
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Find the probability of having 2,3 or 4 successes in five trials of a binomial experiment in which the probability of success is
dexar [7]

Answer:

65.3%.

Step-by-step explanation:

The general formula is:

nCr p^r (1 - p)^(n-r)    where n = number of trials, p =probability of success on one trial , r = the given number of successes

So for 2, 3 or 4 success ;

probability = 5C2 (0.4)^2 (0.60)^(5-2) + 5C3 (0.4)^3 (0.60)^(5-3)

                      +  5C4 (0.4)^4 (0.60)^(5-4)

= 0.3456 + 0.2304 + 0.0768

= 0.6528.

6 0
3 years ago
A survey was done that asked students to indicate whether or not they have ever prepared a meal for their family.
KiRa [710]

Answer:

OK I am 85% sure on this for the 13 year old its ( 23 to 112 )

and for the older kids ( 147 to 48 ) or (23:112) (147:48)

hope it helps if it doesn't sorry.

Step-by-step explanation:

4 0
3 years ago
A dealer purchased 250 bulbs for Rs10 each. However, 12 bulbs got fused which he had to throw away. He sold the remaining bulbs
jasenka [17]

Answer:

CP of 1bulb =Rs10

CP of 250bulbs=Rs2500

Number of defective bulbs 12

remaining bulbs =250−12=238

SP of 1bulb =Rs12

SP of 238bulbs=Rs2856

profit=Total SP-CP=2856−2500=Rs356

profit%=[  

CP

loss

​  

×100]=  

2500

356

​  

×100=14.24%

Step-by-step explanation:

6 0
3 years ago
The formula for the length of the hypotenuse in a right triangle is
kramer

Answer:

m

Step-by-step explanation:

m

3 0
4 years ago
I need help please.​
pshichka [43]

Answer:

e

Step-by-step explanation:

3 0
3 years ago
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