1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alex17521 [72]
3 years ago
12

Let f(x) = 4x – 5 and g(x) = 3x + 7. Find f(x) + g(x) and state its domain.

Mathematics
1 answer:
lesantik [10]3 years ago
8 0

f(x)=4x-5,\ g(x)=3x+7\\\\f(x)+g(x)=(4x-5)+(3x+7)=4x-5+3x+7\\\\=(4x+3x)+(-5+7)=7x+2\\\\\text{It's a linear function. The domain is the set of all real numbers.}\\\\Answer:\\\\f(x)+g(x)=7x+2\\D=\mathbb{R}

You might be interested in
henley needs to calculate the base of a trapezoid, b, given the area, a, in inches. She need to rearrange the formula a=16(b+4).
yKpoI14uk [10]

Answer:

b = (a/16) - 4

Step-by-step explanation:

a = 16(b + 4)

a = 16b + 64

16b + 64 = a

16b = a - 64

16b/16 = (a/16) - 64/16

b = (a/16) - 4

3 0
2 years ago
Read 2 more answers
5x + 7x + 2x + 8 -2 please helppp
Murljashka [212]

Answer:

= 14X + 6

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
There are four blue marbles, an unknown number of red (r) marbles, and six yellow marbles in a bag. Which expression represents
MAXImum [283]

Answer:

There are a total of 4 + r + 6 marbles in the bag

The probability of a blue is  \frac{4}{10+r}  

The probability of a red is  \frac{r}{10+r}  

The probability of choosing a blue, replacing it and then a red is

\frac{4}{10+r} × \frac{r}{10+r}  =  [tex]\frac{4r}{100+20r+ r^{2} /[tex]

Step-by-step explanation:

6 0
3 years ago
Simplify the ratio : 72:16:32<br> What is ans
ArbitrLikvidat [17]

Answer:

9 : 2 : 4

Step-by-step explanation:

Given

72 : 16 : 32 ( divide each part of the ratio by 8, the LCM of 72, 16, 32 )

= 9 : 2 : 4

6 0
3 years ago
Which equation has a graph that is a parabola with a vertex at (–2, 0)?
RideAnS [48]

Comparing to the standard equation, the parabola with a vertex at (-2,0) is given by:

y = (x + 2)²

<h3>What is the equation of a parabola given it’s vertex?</h3>

The equation of a quadratic function, of vertex (h,k), is given by:

y = a(x - h)² + k

In which a is the leading coefficient.

In this problem, we have that h = -2 and k = 0, and all the options have leading coefficient a = 1, hence the equation is:

y = (x + 2)²

More can be learned about the equation of a parabola at brainly.com/question/17987697

4 0
2 years ago
Other questions:
  • Which ratios are proportional to 14 : 21? Choose all answers that are correct.
    14·2 answers
  • two points are given (-1,-4) and (-3,6) use the coordinates of the two points to set up the equation for rate of change the solv
    6·1 answer
  • What is the value of this expression? (−4)^4?
    10·1 answer
  • The point (3, -4) is on the terminal side of an angle Θ . What is cos Θ
    15·1 answer
  • A jar of candy has 6 cinnamon, 5 peppermint and 7 spearmint candies in it. Your pick three pieces of candy out of the jar at the
    7·1 answer
  • What is the probability of rolling a number divisible by 3 on a 6-sided standard number cube?
    15·1 answer
  • This algebra I need help with all of them
    15·1 answer
  • Find the volume of this right rectangular prism. [type your answer as a number]
    10·1 answer
  • HELP ME I AM BEING TIMED!!!
    11·1 answer
  • Which graph represents (y-3)^2/25 + (x+1)^2/4 &gt; 1 and y &lt;= square root{x+5}+2
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!