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nydimaria [60]
2 years ago
7

Which shows a correct order to solve this story problem?

Mathematics
2 answers:
ELEN [110]2 years ago
8 0
C is the right answer, the product is 13.348
natali 33 [55]2 years ago
8 0
C is the correct answer.
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YALL SOLVE THIS AND U GET BRAINLIEST.
PolarNik [594]

Answer:

6

Step-by-step explanation:

7 0
2 years ago
Professor Halen has 184 students in his college mathematics lecture class. The scores on the midterm exam are normally distribut
AURORKA [14]

Answer: 21

Step-by-step explanation:

Given : The scores on the midterm exam are normally distributed with

\mu=72.3\\\\\sigma=8.9

Let X be random variable that represents the score of the students.

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

For x=82

z=\dfrac{82-72.3}{8.9}\approx1.09

For x=90

z=\dfrac{90-72.3}{8.9}\approx1.99

Now, the probability of the students in the class receive a score between 82 and 90 ( by using standard normal distribution table ) :-

P(82

Now ,the number of students expected to receive a score between 82 and 90 are :-

184\times0.1146=21.0864\approx21

Hence, 21 students are expected to receive a score between 82 and 90 .

5 0
3 years ago
A rectangular box is twice as long as it is wide and twice as wide as it is high. The sum of its length,
seraphim [82]

Answer:

ok so the

the length is 20

the width is 10

the height is 5

Step-by-step explanation:

ok i got this by guess and check

twice as long as it is wide so i am saying that it is 10 wide so it would be 20 long and if it is twice as wide as it is tall then it is 5 because 10/2=5

20+10+5=35

8 0
2 years ago
A quantity y varies inversely with the square of x. If y=8 when x=3, find y when x is 4
choli [55]

Answer:

look at the explanation

Step-by-step explanation:

In order to solve this, we'll set up a proportion.

Since y is inversely related to the square of x, therefore:

y=4/63 ----->9 (square of x)

y=?

25 (square of x)

According to the inverse relation:

y=4/63------->25

y=? --------

-->9 and y=4/175

7 0
2 years ago
The solution to the system -2x+5y=-15 and 5x+2y=-6 is what
cupoosta [38]

Step-by-step explanation:

−2x+5y=−15 and 5x+2y=−6

Rewrite equations:

−2x+5y=−15;5x+2y=−6

Step: Solve−2x+5y=−15for x:

−2x+5y=−15

−2x+5y+−5y=−15+−5y(Add -5y to both sides)

−2x=−5y−15

−2x−2=−5y−15−2(Divide both sides by -2)

x=52y+152

Step: Substitute52y+152forxin5x+2y=−6:

5x+2y=−6

5(52y+152)+2y=−6

292y+752=−6(Simplify both sides of the equation)

292y+752+−752=−6+−752(Add (-75)/2 to both sides)

292y=−872

292y292=−872292(Divide both sides by 29/2)

y=−3

Step: Substitute−3foryinx=52y+152:

x=52y+152

x=52(−3)+152

x=0(Simplify both sides of the equation)

Answer:

x=0 and y=−3

8 0
2 years ago
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