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umka21 [38]
3 years ago
9

Which number is a composite number 7 11 31 or 36 show your work.

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
6 0
Alrighty, so if I remember correctly a prime number is a number in which the number 1 and a number are the only factors of said number and a composite number has more than 1 and itself. 7: 7, 1     11: 11, 1     31: 31, 1     36: 1,2,3,4,6,9,12,...36. Therefore 36 is composite. 
Crank3 years ago
4 0
36 because the rest are prime #'8
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A line has a slope of 8 and a y-intercept of 0 what is its equation in slope intercept form
Deffense [45]
Slope-intercept form is y = mx + b.
In this form, m is slope and b is y-intercept.
Slope is rise over run. The formula for this is (y2-y1)/(x2-x1).
Y-intercept is the value of y when x is equal to 0.

1. Slope = 8 ; Y-intercept = 0
y = mx + b
m = 8 ; b = 0
y = 8x + 0
y = 8x

2. Slope = 1 ; Y-intercept = 2
y = mx + b
m = 1 ; b = 2
y = 1x + 2
y = x + 2

The answer to #1 is y = 8x.
The answer to #2 is y = x + 2.

Hope this helps!
4 0
2 years ago
-3-6x=9 please help solve for x!!!!
Vinil7 [7]

Answer: x= -2

Step-by-step explanation:

Here you go!

7 0
2 years ago
If 20 divided by 5 = 4 <br> Then 20 divided by 5.5=4.?
ahrayia [7]

Answer:

no

Step-by-step explanation:

20 divided by 5.5 is a decimal 3.63

3 0
3 years ago
What is x if rs= 6, st=9, tu=7, uv=15,vr=14
dusya [7]

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8 0
3 years ago
In melanie's styling salon, the time to complete a simple haircut is normally distributed with a mean of 25 minutes and a standa
vovikov84 [41]
They will require between 18.42 and 31.58 minutes.

We want the middle 90%.  The two probability values associated with this would be 0.95 and 0.05; this would leave 5% below and 5% above, giving us the middle 90%.

Using a z-table (http://www.z-table.com) we see that the z-score associated with an area to the left of 0.05 is between -1.64 and -1.65; since it is equally distant from both we will use -1.645.

The z-score associated with an area of the left of 0.95 is between 1.64 and 1.65; since it is equally distant from both we will use 1.645.

The formula for a z-score is

z = (X-μ)/σ
-1.645 = (X-25)/4

Multiplying by 4 on both sides,
-1.645(4) = X-25
-6.58 = X-25

Adding 25 to both sides,
-6.58+25 = X
18.42 = X

For the upper bound,
1.645 = (X-25)/4

Multiplying both sides by 4,
1.645(4) = X-25
6.58 = X-25

Adding 25 to both sides,
6.58+25 = X
31.58 = X

The times are between 18.42 and 31.58 minutes.
6 0
3 years ago
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