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3 years ago

Which expression does the phrase "five times the difference of x and 4" represent? A. 5x + 4 B. 5x - 4 C. 5(x + 4) D. 5(x - 4)

1 answer:

4 0

it's D because 5 time the difference of means it's gotta be 5 time the answer of a problem in parenthesis , the rest is quite logical so... yeah it's D

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A customer pays $18 for DVD that originally cost $20. What is the percent decrease in the cost of the dvd.

Feliz [49]

Answer:

Step-by-step explanation:

18-20=2 so thats your answer

8 0

3 years ago

HELP ME PLEASE ITS THE LAST QUESTION ON THIS TEST

tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

5 0

3 years ago

Find the exponential equation for the given information. Pls help

nikitadnepr [17]

Answer:

y = 12 $(2.9)^{x}$

Step-by-step explanation:

The standard form of the exponential function is

y = a $(b)^{x}$

Find a and b by substituting ordered pairs from the table into the equation

Using (0, 12 ), then

12 = a $b^{0}$ ( $b^{0}$ = 1 ), so

a = 12, then

y = 12 $b^{x}$

Using (1, 34.8 ) , then

34.8 = 12 $b^{1}$ ( divide both sides by 12 )

b = 2.9

Thus exponential function is

y = 12 $(2.9)^{x}$

3 0

3 years ago

Determine if the triangles, ΔYPQ and ΔNPD, are similar. If so, identify the similarity criterion.

pav-90 [236]

Answer:

The answer to your question is A) they are similar because of AA criterion

Step-by-step explanation:

- ∠ QYP is ≅ to ∠ DNP given

- ∠ QPN is ≅ to ∠ DPN vertical angles

- ∠ YQP is ≅ to ∠ NDP if two angles are congruent third angle

is also congruent.

Conclusion

ΔYPQ is similar to ΔNPD because of AA similarity.

6 0

3 years ago

A local little league has a total of 80 players, of whom 80% are right-handed. How many

Mariulka [41]

Answer:

Step-by-step explanation:

80 percent *80 =

(80:100)*80 =

(80*80):100 =

6400:100 = 64

Now we have: 80 percent of 80 = 64

hope this helps :)

5 0

3 years ago