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blagie [28]
3 years ago
13

For a confidence level of 88%, find the critical value for a normally distributed variable. The sample mean is normally distribu

ted if the population standard deviation is known.
Mathematics
1 answer:
Elanso [62]3 years ago
8 0

Answer:

z = ±  0.772193214

Step-by-step explanation:

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Jane has already run 6 miles this month. She plans to run an additional 2.5 miles per day.
mixas84 [53]
Answer: It will take Jane 14 days to run 41 miles

Explanation: The problem asks how long it will take Jane to run 41 miles, we know Jane has ran 6 miles already so:
41-6= 35
Jane is running 2.5 miles a day therefore:
35 ÷ 2.5 = 14
7 0
2 years ago
A store is having a 25•/• off sale on all shirts. show two ways to calculate the sale price for a shirt that normally costs $24.
tia_tia [17]
24 x .25 is 6, so 24 - 6 is $18.00.

I don't know another way sorry.
3 0
3 years ago
Read 2 more answers
Solve the quadratic equation. <br><br> 3x^2 - 5= 70<br><br> (Please explain steps)
Svet_ta [14]
Simplifying
3x2 + -5 = 70

Reorder the terms:
-5 + 3x2 = 70
Solving
-5 + 3x2 = 70

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '5' to each side of the equation.
-5 + 5 + 3x2 = 70 + 5

Combine like terms: -5 + 5 = 0
0 + 3x2 = 70 + 5
3x2 = 70 + 5

Combine like terms: 70 + 5 = 75
3x2 = 75

Divide each side by '3'.
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5} and that’s it.
5 0
3 years ago
Read 2 more answers
Write the slope-intercept form of the equation of the line described.4) through: (-5,0) , parallel to Y= -2/5x + 4
elixir [45]

To write the slope form quation

First; find the slope of

8 0
1 year ago
determine the equation of the line that has the given slope and travels through thegiven point (3,-4) and m=2
iren2701 [21]
Y = mx + c
-4 = 2(3) + c
-4 = 6 + c
-10 = c

y = mx + c
y = 2x - 10
Hence, the equation is y=2x-10.
6 0
3 years ago
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