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xxMikexx [17]
2 years ago
7

Find the domain of each rational expression. f(x)=5x-7/4

Mathematics
2 answers:
Aloiza [94]2 years ago
7 0
 f(x)=5x-\frac{7}{4}

The function is defined for all real numbers x

 D=R



Natasha2012 [34]2 years ago
6 0
1)\ \ \ f(x)=5x- \frac{7}{4} \ \ \ \Rightarrow\ \ \ D_f=R\\\\2)\ \ \ f(x)= \frac{5x-7}{4}  \ \ \ \Rightarrow\ \ \ D_f=R
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Turn 2 2/5 into a percent
Naddika [18.5K]
2/5 = 0.4
2.4 x 100 = 240%
6 0
2 years ago
Can you help me out ​
Advocard [28]
The answer is 20

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8 0
1 year ago
Answer Is not C<br>please help​
Katyanochek1 [597]

Answer:

B

Step-by-step explanation:

Well since it is arthimetic sequence we know the formula

We know d is difference between second term and first so it will be -5- (-12)= -5+12= 7

a_{n}= a _{1}+ d (n-1) \\a_{n}= -12+7(n-1)\\a_{n} = -12+7n-7\\a_{n}= 7n-19

the domain of this is 1,2,3,4.......

range is -12,-5,2,9.......

Therefore answer is B.

5 0
3 years ago
Helen got a 7% reduction in the price of pair jeans that are normally $32. What is the approximate percent decrease in the price
Colt1911 [192]

A percentage is a way to describe a part of a whole. The approximate percent decrease in the price is 21.87%, thus, the correct option is B.

<h3>What are Percentages?</h3>

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

Given the reduction in the price is $7, while the original cost is $32. Therefore, the approximate percent decrease in the price is,

Percentage decrease = 7/32  × 100%

                                     = 21.87%

Hence, the approximate percent decrease in the price is 21.87%, thus, the correct option is B.

The correct question is:

Helen got a $7 reduction in the price of a pair of jeans that are normally $32. What is the approximate percent decrease in the price?

The percent decrease is approximately 15%.

The percent decrease is approximately 21%.

The percent decrease is approximately 43%.

The percent decrease is approximately 78%

Learn more about Percentages:

brainly.com/question/6972121

#SPJ1

3 0
1 year ago
Can someone answer #10 please?
n200080 [17]
Not sure of the question...1 missing vs 8 found
or 1 missing vs 9 piece puzzle

8 0
3 years ago
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