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Naily [24]
3 years ago
14

Pls help asap!!! just need answers not work

Mathematics
1 answer:
dem82 [27]3 years ago
4 0

Answer:

b= 5\sqrt{3} c = 10,   x=7 hypotenuse = 7\sqrt{2}

Step-by-step explanation:

A 30-60-90 triangle has the ratios of x-x\sqrt{3}-2x so if x=5, then 5-5\sqrt{3} - 10

for a 45-45-90, if one leg is 7, so is the other x\sqrt{2} so hypotenuse is 7\sqrt{2}

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C. Home inventory

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Read 2 more answers
A shoe manufacturer collected data regarding men's shoe sizes and found that the distribution of sizes exactly fits the normal c
Lina20 [59]

Answer: 97.72%

Step-by-step explanation:

Given : A shoe manufacturer collected data regarding men's shoe sizes and found that the distribution of sizes exactly fits the normal curve.

Let x be the random variable that represents the shoe sizees.

Also, The population mean = \mu=11 ; Standard deviation: \sigma=1.5

Formula for z:-

z=\dfrac{x-\mu}{\sigma}

Put x= 8, we get

z=\dfrac{8-11}{1.5}=-2

Now, the probability that the male shoe sizes are greater than 8 :-

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Hence, the percent of male shoe sizes are greater than 8 is 97.72%.

7 0
3 years ago
Tickets to a local movie were sold at $12.00 for general admission and $9.00 for seniors. If 155 tickets were sold for a total o
kondaur [170]

We have a problem of a sysmtem of equation

x is the number tickets sold of general admission

y is the number o tickets sold for seniors

The first equation is about the number of ticktes sold

x+y=155

the second equation is about the amount of money

12x+9y=1680

we isolate x of the first equation

x=155-y

we substitute the equatio above in the second equation

12(155-y)+9y=1680

1860-12y+9y=1680

we isolate the y

-3y=1680-1860

-3y=-180

y=-180/-3

y=60

then we substitute the value of y in order to find x

x=155-y

x=155-60

x=95

They sold 95 tickets of general admission

7 0
1 year ago
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