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anyanavicka [17]
3 years ago
9

PLEASE HELP 30 POINTS DONT HAVE TO SHOW WORK 3 ATTACHMENTS PLEASE ANSWER ALL

Mathematics
1 answer:
Eva8 [605]3 years ago
4 0
First one answer is C.
log3(1/81) = -4

-------------
log(45) / log(2) = 5.4919

answer
A. 5.4919
--------------------
next step
x - 1 = 3x+9
2x - 10
x = -5

answer
D. x - 1 = 3x+9

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jek_recluse [69]

Answer:

40

Step-by-step explanation:

The first box is 2--> 16*3 divided by 24= 2

Second box is 40--> 5*24 divided by 3= 40

Hope it helps.

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Which of the following is a radical equation?
MrMuchimi
It is A because it can’t be B and it can’t be C and it can’t be D so my answer is A
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Help me please, I need help I don’t understand this problem
jarptica [38.1K]

The maximum speed of a boat at 30 feet length of water is 0.093 nautical miles/hour or knots.

<u>Step-by-step explanation:</u>

  • The equation for the maximum speed, s is given by s²= (16/9)x
  • where, x is the length of the water line in feet.

It is given that, the modeled equation s²= (16/9)x is used to find the maximum speed in knots or nautical miles per hour.

The question is asked to find the maximum speed when the length of the water is 30 feet.

Therefore, to find the maximum speed in 30 feet water, the given modeled equation is used. So, substitute the 30 feet in place of x.

<u>Now, calculating the maximum speed :</u>

s² = (16/9)(30)

s² = 480 / 9

s² = 53.3

Taking square root on both sides,

s = √53.3

s = 7.3

The maximum speed of a boat at 30 feet length of water is 7.3 nautical miles/hour or knots.

6 0
3 years ago
A starter motor used in a space vehicle has a high rate of reliability and was reputed to start on any given occasion with proba
GuDViN [60]

Answer:

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Step-by-step explanation:

given that a starter motor used in a space vehicle has a high rate of reliability and was reputed to start on any given occasion with probability .99999

Here we find that for any start, there are exactly two outcomes either success or failure.

Also each start is independent of the other since p = 0.99999 for succss is given constant.

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If Y is taken as failure then Y is binomial with p' = 0.00001 and n =10000

Required probability

= the probability of at least one failure in the next 10,000 starts

= 1-P(no failure in 10000 starts)

=1-(0.99999)^{10000} \\=0.095163

4 0
3 years ago
Mrs.smith paid $125 to have her hair colered and cut.if she tips her hairdresser 15% of her bill how much was the tip
rewona [7]
125 divided by 100 is 1.25, 1.25 times 15 is 18.75.She tips $18.75
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