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Nesterboy [21]
3 years ago
11

The mean midday temperature recorded in June in a city in South California is 36ºC, and the standard deviation is 3ºC. The numbe

r of days in the month of June is 30.
Assuming the data is normally distributed, the number of days in June when the midday temperature was between 39ºC and 42ºC is .
Mathematics
2 answers:
Vsevolod [243]3 years ago
7 0

Answer:

About 4 days

Step-by-step explanation:

Convert 39 and 42 degrees C to a z score and then use the z-table

vlabodo [156]3 years ago
7 0

Answer:

Yes, the answer is 4.

Step-by-step explanation:

I just did it on Edmentum.

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Help i need answers for these problems pls
motikmotik

use the pythagorean theorem

4 0
3 years ago
A salesperson's weekly paycheck is 40% more than a second salesperson's paycheck. the two paychecks total $1025. find the amount
BARSIC [14]
Let
 x = salesperson's weekly paycheck
 y = second salesperson's paycheck
 We have the following system of equations:
 x + y = 1025
 x = 1.40y
 Solving the system:
 x + y = 1025
 1.40y + y = 1025
 2.40y = 1025
 y = 1025 / 2.40 = 427.0833333 $
 x = 1.40y
 x = 1.40 * (427.0833333) = 597.9166666 $
 answer:
 the amount of each paycheck is:
 first persons paycheck = 597.92 $
 second persons paycheck = 427.08 $
3 0
3 years ago
Expand and simplify (x - 2)(x - 1)
atroni [7]

Answer:

x^2-3x+2

Step-by-step explanation:

distribute and combine like terms

8 0
4 years ago
Read 2 more answers
SIMILAR TRIANGLES<br> Solve for x.
patriot [66]

Answer:

<h2>x = 9 1/3</h2>

Step-by-step explanation:

To do this, we need to do a few things. I'll put the steps separate so you can easily understand.

<h3>Step 1: Set up a proportion</h3>

\frac{14}{6} = \frac{x}{4}

<h3>Step 2: Cross multiply</h3>

6x = 14 x 4

6x = 56

6x = 9 1/3

<h3>Step 3: Check</h3>

\frac{14}{6} = \frac{6}{9\frac{1}{3} }

Cross multiply to check if they equal

6 x 9 1/3 = 14 x 4

56 = 56 ✔

<h3>Step 4: Answer</h3>

x = 9 1/3

I'm always happy to help :)

7 0
3 years ago
What is the lcm of 24 and 36
lara [203]

Answer:72

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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