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Solnce55 [7]
2 years ago
13

These are the means and standard deviation for samples of building heights in two different cities. Select the two true statemen

ts.

Mathematics
1 answer:
SashulF [63]2 years ago
8 0

The two true statements are A. City A's heights are more spread out than B and C. City A has a lower average height than B

Explanation:

  • The mean for building heights in city A is 120 feet while in city B it is 200 feet. This means that if all the heights are summed with each other and this sum is divided by the number of buildings measured we get 120 feet in city A and get 200 feet in city B. So buildings in city B have a higher average height than the buildings in city A. So Option C is true.
  • City A has a standard deviation of 20 feet while city B's is 12 feet. This standard deviation means that the majority of buildings heights are within 20 feet in city A and 12 feet in city B. Combining both sets of data, we can say that most of city A's building heights are within 100 and 140 feet. For city B most of the building heights are within 188 feet and 212 feet. So City A has more spread than City B which is option A.

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Using the rules of Order of Operations, determine which operation would come first in the following
Oduvanchick [21]

Answer:

Add 6 to both sides

Step-by-step explanation:

order of operations acronym- PEMDAS

P= parenthesis

E= exponents

M=multiply

D= Divide

A= Add

S= subtract

No parenthesis, exponents, multiply, or divide, so skip straight to add or subtract

Add comes first so add 6 to both sides

Add 6 to both sides.

7 0
2 years ago
First, rewrite 14/25 and 11/20 so that they have a common denominator. Then, use <, =, >
muminat

Answer: 14/25 = 56/100

               11/20 =  55/100

               14/25 > 11/20

Step-by-step explanation:

The least common multiple of 20 and 25 is 100.

(100 = 20*5, 25*4)

So we can take the common denominator 100.

14*4/25*4 =56/100. ∴14/25 = 56/100

11*5/20*5  =55/100. ∴11/20  = 55/100

56>55

∴56/100 > 55/100

∴14/25 > 11/20

Hope it's good;)

7 0
3 years ago
A rectangular prism has a length of  1 1/4 centimeters, a width of 4 centimeters, and a height of 3 1/4centimeters.
Svetllana [295]

Answer:

16.25 cubic cm

Step-by-step explanation:

The volume of a prism is found using V = l*w*h. Here l = 1.25, w = 4 and h = 3.25. Substitute and simplify.

V = 1.25(4)(3.25)

V = 16.25

3 0
3 years ago
Read 2 more answers
(-3,600,000,000)x(0.00000824)
Nadusha1986 [10]
-29664 is the correct answer. This mostly deals with the zeros and crossing them off
8 0
2 years ago
F(x)= x/x-7<br> What is the domain of f?
Dmitry [639]

Answer:

(-∞,7) U (7,∞)

Step-by-step explanation:

All real values of x such x ≠ 7

7 0
3 years ago
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