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Mkey [24]
3 years ago
10

Help! Help!

Mathematics
1 answer:
Nina [5.8K]3 years ago
8 0

Answer:

1. 50%

2.100%

3.0%

4.100%

Step-by-step explanation:

Use https://www.mathsisfun.com/data/standard-deviation-calculator.html for later references.

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If a number is raised to a power of 2, it is <br> (a) cubed <br> (b) powered<br> (c) squared
d1i1m1o1n [39]
The answer is B and I am happy to help you out
3 0
3 years ago
by selling a cell phone for 2400rs a shopkeeper makes a profit of 25% what would be his profit percentage if it was 2040rs​
xxMikexx [17]

Answer:

6.25%

Step-by-step explanation:

We first begin by solving for the original price of the cell phone.

if 2400 = 125%

         x = 100%

By cross multplying, we get

125x = 2400 * 100

x = 240000/125

x = 1920rs

To find the profit percentage on the new sale price, we repeat another set of equations

100% = 1920

      x = 2040

1920x = 2040 * 100

x = 204000/1920

x = 106.25%

His new profit percentage is 6.25%

7 0
3 years ago
A box is to be constructed from a sheet of cardboard that is 10 cm by 60 cm by cutting out squares of length x by x from each co
Stells [14]

Volume of a rectangular box = length x width x height<span>

From the problem statement,
length = 60 - 2x
width = 10 - 2x
height = x</span>

<span>
where x is the height of the box or the side of the equal squares from each corner and turning up the sides

V = (60-2x) (10-2x) (x)
V = (60 - 2x) (10x - 2x^2)
V = 600x - 120x^2 -20x^2 + 4x^3
V = 4x^3 - 100x^2 + 600x

To maximize the volume, we differentiate the expression of the volume and equate it to zero.

V = </span>4x^3 - 100x^2 + 600x<span>
dV/dx = 12x^2 - 200x + 600
12x^2 - 200x + 600 = 0</span>

<span>x^2 - 50/3x + 50 = 0

Solving for x,
x1 = 12.74 ;      Volume = -315.56  (cannot be negative)
x2 = 3.92 ;      Volume = 1056.31

So, the answer would be that the maximum volume would be 1056.31 cm^3.
</span><span>
</span>
6 0
2 years ago
Can you guys help me with this?
ankoles [38]
ANSWER-

B

EXPLANATION-

log6 x^6 + 2log6 y
log6 x^6 + log6 y^2
log6(x^6 y^2)
8 0
2 years ago
If it is 5 degrees outside and the temperature will drop 17 degrees in the next 6 hours how cold will it get?
ser-zykov [4K]
5 - 17 = 12 so the answer is that it will be -12 degrees outside. Fahrenheit or Celsius??

Hope This Helps!
7 0
3 years ago
Read 2 more answers
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