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Mashutka [201]
3 years ago
7

A bus averages 60 mi/h traveling to its destination in the first half of its trip through an expressway and 72 mi/h in the secon

d half traveling through a motorway. What is the bus's average speed for the entire trip rounded to the nearest tenth?
A) 64.2 mi/h
B) 63.0 mi/h
C) 65.5 mi/h
D) 66.0 mi/h
Mathematics
1 answer:
maksim [4K]3 years ago
3 0
D) 66.0 mi/h

because to find the average, you have to add up all the numbers and for each number you add, you divide it. 

66+72=132
132
÷2= 66.0
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Furkat [3]

Answer:

738 x 695 = 512910

795 x 695 = 552525

Step-by-step explanation:


8 0
3 years ago
What expressions are equivalent to z + (z + 6)z+(z+6)
Mariana [72]

z^{2} + 8z + 6

Simplifying:

z + (z + 6)z + z + 6=

z + z^{2}  + 6z + z + 6 =

z^{2} + 8z + 6

4 0
3 years ago
Could anyone help with this question?
Nikitich [7]

Answer:

I just answered this question, In case you missed it, here it goes again:

Values for the coefficient in the product k:

a=b=c=d=3*10^8, so the first four boxes should be filled with the number "3"

Drop down arrow: "does"

Step-by-step explanation:

We perform all the products of wavelength time frequency indicated for the column of the quantity "k":

a=1 * 10^{-10} * 3\, * 10^{18} = 3 * 10^{-10+18} = 3 * 10^{8}=

b=1 * 10^{-1}*3*10^9=3* 10^{-1+9}=3*10^8

c=600*10^{-6}*5*10^{11}=3000*10^{-6+11}=3000*10^5=3*10^3*10^5=\\=3*10^{3+5}=3*10^8

d=4*10^{-7}*7.5*10^{14}=30.0*10^{-7+14}=30*10^7=3*10*10^7=\\=3*10^{1+7}=3*10^8

Therefore, all products of these different wavelengths and their associated frequencies render the exact same answer : 3*10^8, which means that as one of these quantities increase, the other one will decrease in the same proportion to give the same numerical answer.

This means that the two quantities are associated via inverse proportionality. As seen in the equation below, if the quantities "x" and "y" are related by inverse proportionality (shown as one equals a constant "A" divided by the other variable), their product x*y will give that constant value "A" (which in our case is 3*10^8.

x=\frac{A}{y} \\x*y=A

8 0
3 years ago
50 PTS Identify the parent function that can be used to graph the function f(x)=(1/4x)^3
Kobotan [32]

Answer:

f(x) = x^3

Step-by-step explanation:

f(x) = (1/4x )^3

y = f(Cx)  

y = x^3  and C = 1/4

This function is stretched in the x direction

The parent function is x^3

5 0
3 years ago
Read 2 more answers
(1 point) A random sample of 1600 home owners in a particular city found 736 home owners who had a swimming pool in their backya
grin007 [14]

Answer:

Answer: (0.4356,0.4844)

Step-by-step explanation:

Use Ti 84

use function "1-PropZInt".

Enter x = 736

         n = 1600

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Answer: (0.4356,0.4844)

3 0
3 years ago
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