MATHEMATICS HIGH SCHOOL

Simplify into one fraction. (-4x/x+7) - (8/x+7)A.
-4x+8/ x+7

B.
x-8/x

C.
-4x-8/x+7

D.
x+7/-4x

Answers

Answer 1
Answer: (-4x/x+7) - (8/x+7)

= -4x-8/x+7
so; the answer is (c)... :)

Related Questions

An arithmetic sequence is shown below. −7,−3,1,5,9,... Which represents an explicit formula for this sequence. A f(n) = -7 +4 (n-1) B f(n) = -4 +7 (n-1) C f(n) = -4 +7 (n-1) D f(n) = -11 (n-1)
What is 20 percent of 70 plants
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ron baby sat 2 hours each night for 10 nights . she earned a total of $ 180 babysitting .ron wants to caculate her hourly rate . how much did ron earn per hour

Fabio and Carlos play on a basketball team together. In the last game, Fabio had 7 points less than 2 times as many points as Carlos. Fabio scored 31 points in the game.

Answers

If you're asking how many points Carlos had...

Answer=19 points

f=sabio
c=carlos
f=31

f=2c-7
31=2c-7
add 7 to both sides
38=2c
divide both sides by two
19=c

Carlos scored 19 points

Answer:

expression: 31=2c-7

carlos scored 19 points

Step-by-step explanation:  

A polynomial has one root that equals 5-7i. Name one other root of this polynomial

Answers

Answer:

The other root of the polynomial is 5+7i.

Step-by-step explanation:

According to the complex conjugate root theorem, if a complex number is a root of a polynomial, then its conjugate is also a root of that polynomial.

It means, if a+ib is a complex root of a polynomial, then its conjugate a-ib is also the root of that polynomial.

It is given that the a polynomial has one root that equals 5-7i.

To find the conjugate of a complex number the sign of imaginary part is changed.

The conjugate of 5-7i is 5+7i.

A polynomial has one root that equals 5-7i, using complex conjugate root theorem 5+7i is the other root of this polynomial.

Answer:

The other root is 5 + 7i.

Daniel has $13.58 in his bank account from interest earned. Kenneth has an account that earns 3 times as much interest, in dollars, as Daniel. How much does Kenneth have in his bank account from interest?

Answers

Answer:

$40.74

Step-by-step explanation:

Daniel's bank account interest is $13.58.

Kenneth's bank account interest is 3 times that of Daniel's account interest.

Hence the amount of interest in Kenneth's account shall be = 3 × $13.58

= $40.74

Given f(x)=x^2-8 and g(x)=x+1/x, find (g o f)(1)[Hint:(g o f)(-4)=(g(f(-4))]
a.)8/7 b.)8 c.)6/7 d.)-8

Answers

f(1) is equal to 1^2-8, or -7.

g(x) is (-7+1)/-7, or -6/-7.  This simplifies to 6/7.  C is the best option.

Also, since you posted a similar question earlier, I knew what to look for with g(x), but in the future, this looks like the x is not divided by the x in the denominator, and you should express this function as (x+1)/x to increase clarity.

In a study of homeowners, 500 were randomly chosen. It was found that 23% of the people did not have a mortgage and owned their homes outright. Determine whether 23% is a statistic or a parameter.A.
It is a parameter because the value describes a characteristic of a population.

B.
It is a statistic because the value describes a characteristic of a sample.

C.
It is a parameter because the value describes a characteristic of a sample.

D.
It is a statistic because the value describes a characteristic of a population.

Answers

A statistic describes the characteristics of a sample while a parameter describes the characteristics of a population.

Here, the population is home owners while the selected 500 home owners is a sample.

It was observed that 23% of the selected 500 home owners (SAMPLE) .....

Hence, 23% is a statistic because it describes a caharacteristic of a sample.

Answer: B

Answer:

B.

It is a statistic because the value describes a characteristic of a sample.

Jalen gets 3 paid vacation days for every 60 days he works. Select all of the expressions that represent the number of vacation days gets per x days worked. (A) x/20 (B) 3/60x (C) x/3 (D) 0.05x (E) 20x

Answers

Answer:

A and D

Step-by-step explanation:

In this question, we are asked to select the expressions that represent the number of vacation days per x days worked.

Now, to do this, what we simply first do is to get the number of days to takes to get one paid vacation. In the question , we are made to know that he gets 3 days paid vacation for 60 days of work. The number of days to get a single paid vacation would thus be 60/3 = 20 days. This means she gets one paid vacation in 20 days.

Now, we are told after working for x days, how many paid days vacation does she get. To know this, what we do is to first know the number of 20 days in x days. That would simply be x/20. This is the number of vacation days she gets in x days.

now, we check if there are similar options to this.

D is also correct. This is because x/20 is same as 0.005x

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