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3 years ago

11

Mrs Johnson is going to the mall. When she left home her odometer was 54,362. 15 minutes later the odometer read 54,362 miles. W

hat is the average speed miles per hour?

1 answer:

andrew-mc [135]3 years ago

8 0

Since both of the times she checked her odometer the result was 54,362 the answer would be 54,362/15

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Which expression represents the fourth term in the binomial expansion of (e + 2f)10?

yan [13]

The fourth term of the binomial expansion $(e+2f)^{10}$ can be calculated using the formula for (i+1)-th term of the binomial expansion:

$T_{i+1}=C_{10}^i\cdot e^{10-i}\cdot (2f)^i.$

In order to find term $T_4$ , determine that

$i+1=4\Rightarrow i=3.$

Now

$T_4=C_{10}^3\cdot e^{10-3}\cdot (2f)^3=C_{10}^3\cdot e^7\cdot (2f)^3.$

Answer: correct choice is A

6 0

3 years ago

Read 2 more answers

Need help with this question please!!

lara31 [8.8K]

Answer:

C. 1/2

There are many ways to do this but I'll use substitution.

Step-by-step explanation:

Bottom equation yields x = 4 - 8y

plug that into the top equation results in:

4(4 - 8y) - y = 3y + 7

Simplify this to find y:

-36y = -9

y = 1/4

Plug that into the bottom equation we get:

x = 4 - 2 = 2

Thus, xy = 2(1/4) = 1/2 (C)

7 0

3 years ago

ZA and ZB are supplementary angles. If mZA = (5x + 25)° and m

liberstina [14]

Answer:

MZA = 140

Step-by-step explanation:

5x+25°+ x + 17°=180°(Supplimentary Angles)

6x + 42° =180°

6x =180 - 42

6x=138

(divide by 6 both sides)

X= 23

substitution X into the given angle

5x +25

5(23)+25

115+25

140

3 0

3 years ago

State the domain and range for the following relation. Then determine whether the relation represents a function

ankoles [38]

Answer:

domain = (Rosa,Alia,Alice,Marie)
Range = (Alan,Hank,Ben)
Is a function

Step-by-step explanation:

Because each member in the domain has only one element on the co domain

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2 years ago

Match the terms to their definition. 1. part-whole ratio a ratio comparing a portion of a whole quantity to the whole quantity 2

dem82 [27]

Answer:

They're already matched... at least they way you typed it.

Step-by-step explanation:

A ratio is a comparison of two numbers as a fraction or quotient. A part-whole ratio is a ratio comparing a part of something to the whole thing. A part-part ratio is ratio comparing two different parts of one whole.

4 0

3 years ago