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cestrela7 [59]
3 years ago
12

In a video game, each rocket has an 80% chance of hitting a target. Three rockets are now fired at a target. What is the probabi

lity that exactly two of the rockets will hit the target? Express your answer as a decimal to the nearest thousandth.
Mathematics
1 answer:
vitfil [10]3 years ago
7 0

See https://web2.0calc.com/questions/help_69037.

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ms Callahan is building a new dog pen for her dog. she has 24feet of fencing. the pen needs to be a rectangle. what is the lengt
NeX [460]
If Ms. Callahan has 24 feet of fencing, and she is building a pen, the PERIMETER of the pen must be 24 feet.  The perimeter is basically the distance around a figure.  The perimeter of a rectangle is equal to length plus width plus length plus width, AKA l+w+l+w, or P=2l+2w.  In a rectangle, two pairs of sides are of equal length--so the two lengths and the two widths must be equal.

So, the formula is P=2l+2w.  P, the perimeter, is 24, so 24=2l+2w.  Let's try some values for l and see what we get for w.  If the length is 1, l=1.  24=(2*1)+2w.  24=2+2w.  22=2w.  w=11.  So if length is 1 foot, width is 11 feet.

What if l=2?  24=(2*2)+2w.  24=4+2w.  2w=20.  w=10.  If l=2, w=10.  And l=3?  24=(2*3)+2w.  24=6+2w.  18=2w.  w=9.  If l=3, w=9.  Do you see a pattern?  Every time we add 1 to l, we subtract 1 from w.  So if l=4, w=8.  If l=5, w=7.  If l=6, w=6.  Here, we start getting similar answers: if l=7, w=5.  If l=8, w=4.  Since we already know these values work, it doesn't matter whether we call it length or width.  So, our answers are below.

Answer: Ms Callahan can make a pen with a length of 1 foot and a width of 11 feet, a length of 2 feet and a width of 10 feet, a length of 3 feet and a width of 9 feet, a length of 4 feet and a width of 8 feet, a length of 5 feet and a width of 7 feet, or a length of 6 feet and a width of 6 feet.
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3 years ago
Which question is a statistics question that anticipates variability
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Porpawnąodopwideząi  topy tanie est ojdpowediź cna

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There are 5 slides, i've provided image for them all i need help with it. if your going to answer write it in order from slide 1
Nana76 [90]

Answer:

mark as brainleast and fo-ll-ow me

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3 years ago
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Mr. Caldwell divides 72 students into 12 groups. Solve the equation 72/s =12 find the number of students in each group.
RideAnS [48]

Answer:

6

Step-by-step explanation:

72 divided by grops of 12 so 72/12 =6

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Henry had $1.05 in nickels and dimes. He had a total of 13
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80 dimes and 25 nickels
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