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VARVARA [1.3K]
2 years ago
9

Really need help! Brainliest to correct!

Mathematics
1 answer:
zlopas [31]2 years ago
7 0

Answer:

<u>Given</u>:

  • R(x) = 59x - 0.3x²
  • C(x) = 3x + 14

<u>Find the following</u>:

  • P(x) = R(x) - C(x) = 59x - 0.3x² - 3x - 14 = -0.3x² + 56x - 14
  • R(80) = 59(80) - 0.3(80²) = 2800
  • C(80) = 3(80) + 14 = 254
  • P(80) = 2800 - 254 = 2546
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Fed [463]
20/5 and -20/-5 are equivalent
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3 years ago
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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 :-

P(x>8)=P(z>-2)=1-P(z\leq-2)\\\\=1-0.0227501=0.9772499\approx0.9772

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

7 0
3 years ago
Please Help!! Brainliest Answer! Thank you!
I am Lyosha [343]

Answer:

x=4.5

Step-by-step explanation:

The sum of all the angles in a square=360°

20(4.5)=90

90×4=360

4 0
2 years ago
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1- the width of a rectangular box is twice the height and depth is 5 feet. if the volume is 160 ft 3, find the dimensions of the
Lana71 [14]
1. H=4
W=8

2. L=27
W=21


1. 160÷5=32
1/2 of 8 is 4
8×4=32
I am default dancing right now


2. 2×6=12
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21= (the Width)
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2 years ago
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sin 60/9 = sin C / 10
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√3/18 = sin C / 10
so c will be sin inverse ((10√3)/10)
8 0
3 years ago
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