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vodomira [7]
3 years ago
5

Suppose a normal distribution has a mean of 26 and a standard deviation of 4. What is the probability that a data value is betwe

en 28 and 31? Round your answer to the nearest tenth of a percent?
Mathematics
1 answer:
lions [1.4K]3 years ago
7 0

Answer:

20.3%

Step-by-step explanation:

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How do I get 1/4 of $3.20
leva [86]
" of " means multiply

1/4 * 3.20/1...and just multiply....(1 * 3.20) / (4 * 1) = 3.20/4 = 0.8
or
1/4 = 0.25.....0.25(3.20) = 0.8
8 0
3 years ago
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-5a to the second power-7a
kakasveta [241]
-5a^2 - 7a = -a x (5a + 7)
let me know if you have any other questions 
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7 0
3 years ago
what is the perimeter measured in centimeters of the rectangle pictured below do not include units in your answer
Snezhnost [94]

Answer:

183

Step-by-step explanation:

7 0
2 years ago
Joe is the proud owner of Joe's Old Time BBQ Pit. He sells two types of BBQ sauce - Hot N' Spicy and Mild Mannered. Each gallon
oksano4ka [1.4K]

Answer:

P=$254

Step-by-step explanation:

let Hot N' Spicy be x

and Mild Mannered be y

  the objective function is

38x+35y=P

the constraints are

1. tomato sauce

2x+3y=18--------1

2. hot peppers

2x+y=10--------2

solving 1 and 2 we have

using substitution method

2x+y=10--------2

y=10-2x

put y=10-2x in eqn 1

2x+3(10-2x)=18

2x+30-6x=18

2x-6x=18-30

-4x=-12

x=12/4

x=3

put x=3 in eqn 2 we have

2(3)+y=10

6+y=10

y=10-6

y=4

He should make 3 gallons of Hot N' Spicy

and 4 gallons Mild Mannered

38(3)+35(4)=P

114+140=P

254=P

P=$254

5 0
2 years ago
KINNDAAAA need help. Will give Brainly! Need the full equation pls!
Alexxandr [17]
Hey, I’m pretty sure the answer is y=1/2x + 0.

To explain, we can plug the x value into the equation for all of the x values, and we will get our y value.

So the first one,

y=1/2(1) + 0 —> 1/2

The second one,

y=1/2(2) + 0 —> 1

And so forth, the rest of the equations will be correct. I hope that helps ! :D
4 0
3 years ago
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