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jekas [21]
2 years ago
7

When Micaela runs the 400 meter dash, her finishing times are normally distributed with a mean of 81 seconds and a standard devi

ation of 1.5 seconds. What percentage of races will her finishing time be faster than 79.5 seconds, to the nearest tenth
Mathematics
1 answer:
Dennis_Churaev [7]2 years ago
6 0

Answer:

Step-by-step explanation:

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The sum of the digits of a two-digit nunber is 7. When you reverse the digits of the original number the new number is 27 more t
anzhelika [568]

Answer:

25

Step-by-step explanation:

2+5=7

25 reversed is 52

52-25=27

8 0
3 years ago
Read 2 more answers
darren has 3/4 of a gallon of soil.he needs to plant 5 small plants.if he splits the soil evenly between the plants.how much soi
Natali5045456 [20]
3/4 divides by 5

3/4 x 1/5 = 3/20 of a gallon
3 0
3 years ago
Someone please Solve 3 (x - 1) = 6. Thank you
kramer
We have an equation with parentheses. To make our lives easier, first get rid of the parentheses. We do this by using the distributive property.

It is used like this: a(b + c) = ab + ac.

Use the distributive property on the left-hand side.

3(x - 1) = 6
3x - 3 = 6

Now we have an equation that is easier.

The x variable is being multiplied by 3 and added to -3.
Reverse all of these operations with their inverse operation.

3x - 3 = 6
3x = 9 <--- I got rid of the -3 term by using the inverse of subtraction. Addition.
                  And I did the same for both sides to keep the equation true.
x = 3 <--- The inverse of multiplication is division.
                So, I divided both sides by 3.

So, x is equal to 3.
3 0
3 years ago
Add parentheses 10+9×3-1×2 equal greater than 75
vitfil [10]
(10 + 9) x (3 - 1) x 2 = +75
19 x 2 x 2
76
76 > 75


5 0
3 years ago
answer correctly pls! , [40pts and brainliest] Find the volume of a cone with a base radius of 5 cm and a height of 6 cm.
Leya [2.2K]

Answer:

Volume of cone= π r² h/3

22/7x5x5x6/3

157.08

May be the answer is...... Thank you..... ✧༺♥༻✧

4 0
3 years ago
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