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VARVARA [1.3K]
3 years ago
14

Someone help me with 2-5

Mathematics
1 answer:
Travka [436]3 years ago
7 0
2 is 180:4, 3 is 4:204
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Determine the area under the standard normal curve that lies to the right of the z-score 0.48 and to the left of the z-score 0.7
pychu [463]

Answer:

The area lies to the right of the z-score 0.48 means all the values greater than it. This can be calculated on a graphing calculator using the function normCdf, where

  • Lower bound = 0.48
  • Upper bound = 9999
  • Mean = 0
  • Standard deviation = 1

<u>The result would be normCdf(0.48,9999,0,1) ≈ </u><u>0.315614</u>

<u />

The area lies to the left of the z-score 0.79 means all the values less than it. This can be calculated on a graphing calculator using the function normCdf, where

  • Lower bound = -9999
  • Upper bound = 0.79
  • Mean = 0
  • Standard deviation = 1

<u>The result would be normCdf(-9999,0.79,0,1) ≈</u><u> 0.785236</u>

6 0
3 years ago
John bought a shirt on sale for 25% off the original price and another 25% off the dicounted price. if the final price was $16,
Rus_ich [418]
24.44 bucks cause I'm smart
3 0
3 years ago
Evaluate 2(x + 1) - 3 when x = 6.<br> O A. 5<br> OB. 10<br> O C. 11<br> O D. 8
Ainat [17]

Answer:

<h2><em><u>C. 11</u></em></h2>

Step-by-step explanation:

2(x + 1) - 3

<em>(</em><em>Putting</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>6</em><em>)</em>

= 2(6 + 1) - 3

= 2 × 7 - 3

= 14 - 3

= <em><u>11</u></em><em><u> </u></em><em><u>(</u></em><em><u>Ans</u></em><em><u>)</u></em><em><u>(</u></em>

4 0
3 years ago
Read 2 more answers
The midpoint of AB is M ( 1 , − 3 ). If the coordinates of A A are ( − 6 , − 7 ),what are the coordinates of B?
Leno4ka [110]

Answer:

a= -4

b=1

Step-by-step explanation:

Midpoint=(1,-3)=(x,y)

A=(-6,-7)=(x1,y1)

Let ,the coordinates of B be 'a and b' .

So,

B=(a,b)=(x2,y2)

Using ,midpoint formula,

(x,y)=(x1+x2\2 , y1+y2 \2)

or, (1,-3)=(-6+a\2 , -7+b \2)

Now,

Taking the corresponding sides,

or, 1 =-6+a/2

or, 1*2=6+a

or, 2=6+a

or, 2-6=a

a=-4

Then,

-3= -7+b/2

or, -3*2= -7+b

or, -6 =-7+b

or, -6+7=b

b=1

6 0
3 years ago
John bought a laptop for 1,500 the value of this laptop decreases at a constant rate of 18% per year what does the expression 15
Sonbull [250]

Answer:

your a nerd!

Step-by-step explanation:

get off me baby hippo

5 0
3 years ago
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