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Olin [163]
3 years ago
6

Please help me with this multiple question!! :

Mathematics
2 answers:
Olenka [21]3 years ago
8 0

Answer:

C

Step-by-step explanation:

Find P(X > 67)

using ( x - mean )/ standard deviation again you will get thi(1) which is equal to 0.8413....

0.8413 x 5000 is 4207

JulsSmile [24]3 years ago
7 0

Answer:

C) 4207

Step-by-step explanation:

In the figure attached standard normal distribution can be seen. The area under the curve from \mu = 0 to the left is 0.5. You have to find the area between \mu = 0 and Z, where Z is computed as Z = (x - mean)/standard deviation and x is the point of your interest, in this case x = 67. This procedure is made in this way because the table show the case when mean = 0 and standard deviation = 1. So, Z = (67 - 59)/8 = 1 and area = 0.3413. In consequence, the probability of a student to get less than 67 is 0.3413 + 0.5 = 0.8413 (the area under the curve from the left to Z = 1). In terms of students, 0.8413*5000 = 4207

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3/1×6/8=3/1×3/4=9/4=2 1/4

5 0
3 years ago
Find the length of the hypotenuse of a right triangle with legs of lengths 12 ft and 16 ft answer
Finger [1]
Use Pythagorus theorem: 

a²+b²=c²
(12)²+(16)²=c²
400=c²
√400=c 
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Therefore, the hypotenuse would be 20 ft. 

Hope I helped :) 
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2 years ago
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malfutka [58]

Answer:

i) +3

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3 years ago
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Anarel [89]

Answer:

Quadrant 2

Step-by-step explanation:

The answer is quadrant two because the answer is in the form of -x,y. When the x is negative and the y is positive, it is always going to be in quadrant 2. As you can see in the image below, quadrant 1 is going to be all positive, quadrant two is going to be negative then positive, quadrant three is going to be all negative, and quadrant 4 is going to be positive then negative. Use this as a guide for the rest of your question. I hope this helps!

8 0
3 years ago
An architect designed this scale model of a warehouse for a building contractor.
Annette [7]

tl;dr Answer is C

Here we will have to calculate 3 different areas separately.

When calculating the area of the triangle we will use the formula

A = (h*b)/2  

A = Area

h = height

b = base

To find the height we do X - Z  

23 - 15 = 8 ft

To find the base we do Y - W

19 - 13 = 6 ft

Using the formula above we can now solve for A  

A = (8*6)/2

A = (48)/2

A = 24 sq ft

Now we solve the two rectangles using the formula  

A = wl

w = width

l = length

We will calculate the area of the left most rectangle first.

We know the length of the rectangle because it's Y - W and we are given the width of the triangle.

w = 15 ft

l = 6 ft

A = 15*6

A = 90 sq ft

Second Rectangle has the width of X and length of W

w = 23 ft

l = 13 ft

A = 23 * 13

A = 299 sq ft

Now we add all the areas to give us the total area of the warehouse.

24 + 90 + 299 = 413 sq ft

Therefore, the answer is C

5 0
3 years ago
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