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xz_007 [3.2K]
2 years ago
5

A set of mathematics exam scores are normally distributed with a mean of 80.280.280, point, 2 points and a standard deviation of

444 points. What proportion of exam scores are between 828282 and 85.685.685, point, 6 points? You may round your answer to four decimal places.
Mathematics
1 answer:
Ugo [173]2 years ago
5 0

Answer:

0.2379

lmk if im wrong :)

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. The selling price of 15 articles is Rs 1,500 at a gain of 8%. Find C.P of each article<br>​
Andru [333]

<u>Rs. 92.59</u> is each article's CP

Step-by-step Explanation:-

As per conditions given,

1500 \div 15 \div (1 + 8%)

=  > 100 \div 1.08

=  > approx. \: 92.59

Hence, the CP of each article is <u>Rs. 92.59</u>

3 0
2 years ago
the area of square Garden is 625 metre square find its length its perimeter and find the cost of fencing it with 5 round at Rs 2
Mazyrski [523]

Answer:

Length=25m

Parameter=100m

5 round cost RS 12500

Step-by-step explanation:

The area of a square

=x²

According to the question the equation is

x²=625

x=√625

x=25

The parameter is

25×4

100 meter

So

1 meter costs 25

100 " " 25×100

2500

1 round = 100 meter

So

5 round cost 2500×5

12500

8 0
3 years ago
What’s the x and y intercepts of this equation: -3x-7y=84
Arlecino [84]

Answer:

The X and Y intercepts to the equation -3x - 7y = 84 is

x-intercept (s): (−28,0)

y-intercept (s): (0,−12)

Step-by-step explanation:

To find the x-intercept(s), substitute in 0 for y and solve for x

−3x−7⋅0=84

Solve the equation.

x=−28

x-intercept(s) in point form.

x-intercept (s): (−28,0)

To find the y-intercept(s), substitute in 0 for x and solve for y .

−3⋅0−7y=84

Solve the equation.

y=−12

y-intercept(s) in point form.

y-intercept (s): (0,−12)

Hope this helps.

4 0
3 years ago
If the height of water in the tank is 10cm what is the volume of the water​
Kay [80]

Answer:

4500cm^3

Step-by-step explanation:

We use the normal formula for volume V= L•W•H just changing the H value from 20 to 10 because the water isn't at the full hight

10•30•15=4500

hope this helps <3

7 0
2 years ago
Read 2 more answers
Please help me! Does ∡JLK = 102° ?
Lubov Fominskaja [6]

Answer:

36+102=138  180-138=42  

Step-by-step explanation:

sorry i berly learning this ... i suck ... plz someone help this kid

7 0
3 years ago
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