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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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Hey can you please help me posted picture of question
Naddika [18.5K]
The correct answer is option D

The solution is shown below:

x^{2} +16 \\  \\ 
= x^{2} +(4)^{2} \\  \\ 
= x^{2} -(-1)(4)^{2}   \\  \\ 
= x^{2} -i^{2} (4)^{2} \\  \\ 
= x^{2} -(4i)^{2} \\  \\ 
=(x+4i)(x-4i)

6 0
3 years ago
Simplify the expression. Show your work. 22 + (3^2 – 4^2)
irga5000 [103]
<span>22 + (3^2 – 4^2)
= </span><span>22 + (9 – 16)
</span><span>= 22 -7
= 15</span>
6 0
3 years ago
Ll make u as brainlist
insens350 [35]

Answer:

3 raise to -7 ÷3 raise to -10 × 3 raise to -5

3 raise to -7-(-10)×3 raise to -5

3 raise to 3×3 raise to -5

3 raise to 3+-5

3 raise to -2

1/3²

1/9

hope it helps you!

6 0
3 years ago
Write an equation for the parabola whose vertex is at (4, 9) and which passes through (5, 24).
babunello [35]
The general formula to form a parabole equation is written below.
y = a(x - h)² + k
with (x,y) is one of the points lies on the parabola, and (h,k) is the vertex of the parabola.

From the question above, we get this information
(x,y) = (5,24)
(h,k) = (4,9)
The remaining value to find is a. We need to find the value of a to form the equation. Input the numbers to the equation.
y = a(x - h)² + k
24 = a(5 - 4)² + 9
24 = a(1) + 9
24 = a + 9
24 - 9 = a
a = 15

Write the equation, without inputing the value of x and y
y = a(x - h)² + k
y = 15(x - 4)² + 9
<em>This is the equation</em>
8 0
3 years ago
Find the slope of the line that passes through the points (1,10) and (-8,3)
dem82 [27]

We can use the points (1, 10) and (-8, 3) to solve.

Slope formula: y2-y1/x2-x1

= 3-10/-8-1

= -7/-9

= 7/9

Best of Luck!

3 0
3 years ago
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