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Sonja [21]
3 years ago
6

Four people each invested $450 in an account that earns simple interest assuming no other deposit or withdrawal were made witch

investment earned more then $50
Mathematics
1 answer:
lina2011 [118]3 years ago
8 0

Answer: $250

Step-by-step explanation: Step 1: Multiply $50 by 4 Step 2: Subtract $450 by $250 Step 3: Then you get $200 leftover

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A distribution has a mean of 16 and a standard deviation of 6. What is the Z score that corresponds with 34?
Brrunno [24]

Answer:

Z = 3

Step-by-step explanation:

In a normal distribution, the Z score that corresponds with a data point x is calculated using the formula;

Z=\frac{x-mean}{standard deviation}

For the case given, the z score will be;

Z=\frac{34-16}{6}=3

7 0
3 years ago
A cube has a length of 8 in. What is the width and the height of the cube?​
Triss [41]

Answer:

8 in

Step-by-step explanation:

In a cube, the length, width, and height are all the same.

7 0
2 years ago
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Use a net to find the surface area of the cone to the nearest square centimeter. Use 3.14 for pi (Round to nearest whole number)
Mariana [72]

Given:

The radius of the base of the given cone = 5 cm

The slant height of the cone = 19 cm

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Formula

The surface area pf the given cone is,

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l be the slant height.

Now,

Taking, r = 5, l = 19 and π = 3.14 we get,

sq cm

or,  sq cm

or,  sq cm

Rounding off to the nearest square centimeter, we get;

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The surface area of the cone is 377 sq cm.

3 0
3 years ago
Create a system of equations that includes one linear equation and one quadratic equation.
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Answer:

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6 0
3 years ago
56% enrolled if a same of 500 is randomly selected what probability 250 will get selected?​
dalvyx [7]

I'll get you started:

mean = np = (500)(.56) = ?

standard deviation = √npq = √(500)(.56)(.44) = ?

Note: q = 1 - p

Finish the calculations.

To find z-score:

z = (x - mean)/sd

Note: x = 250

Once you have the z-score, look in a z-table using the score to find your probability. Remember that the question is asking "at least 250" when looking at the table.

4 0
3 years ago
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