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
Vesna [10]
4 years ago
6

Help?!?!?please?!?!?

Mathematics
2 answers:
Tanya [424]4 years ago
7 0

Answer:

D

Step-by-step explanation:

note that (f - g)(x) = f(x) - g(x)

f(x) - g(x)

= 4x - 3 - (x + 4)

= 4x - 3 - x - 4 ← collect like terms

= 3x - 7 → D

maxonik [38]4 years ago
5 0

Answer: OPTION D

Step-by-step explanation:

To solve the exercise shown in the image attached you must subtract the functions f(x) and g(x), as you can see below:

(f-g)(x)=4x-3-(x+4)

Distribute the negative sign and then you must add like terms. Therefore, you obtain:

(f-g)(x)=4x-3-x-4\\(f-g)(x)=3x-7

You might be interested in
HELPPPP IM DUMBO. WILL MARK BRAINLIEST
Mkey [24]

Answer:

the first multiple choice {x|1≤x<5}

4 0
4 years ago
find the value of a and b for which the system of equations has infinitely many solutions : 2x + 3y = 7 ; (a-b)x + (a+b)y = 3a +
hodyreva [135]

Answer:

a= 5    and   b=1

Step-by-step explanation:

To solve, we will follow the steps below:

2x + 3y = 7

(a-b)x + (a+b)y = 3a + b - 2​

We should note that since it has infinitely many solutions then,

\frac{a_{1} }{a_{2} }   =  \frac{b_{1} }{b_{2} }  = \frac{c_{1} }{c_{2} }

Hence

2/a-b  =  3/a+b   =     7/3a +b-2

2/a-b  =  3/a+b

cross-multiply

3(a-b) = 2( a+b)

open the bracket

3a - 3b = 2a + 2b

collect like term

3a - 2a = 2b + 3b

a = 5b  -------------------------------------------(1)

Similarly

3/a+b   =     7/3a +b-2

cross-multiply

7(a+b)  = 3(3a+b -2)

7a + 7b = 9a + 3b -6

take all the variables to the left-hand side of the equation

7a - 9a+ 7b-3b =   -6

-2a + 4b = -6 ---------------------------------(2)

but a = 5b

substitute a= 5b in equation (2)   and solve for b

-2(5) + 4b = -6

-10  +  4b  = -6

add 10 to both-side of the equation

-10  + 10+ 4b  = -6+10

4b = 4

divide both-side of the equation by 4

b = 1

substitute b= 1 in equation (1)

a = 5b

a =5(1)

a=5

Therefore,   a= 5    and   b=1

8 0
4 years ago
If a=-3 and zeros are 4,-7 <br> What would be the equation pf the parabola
erastovalidia [21]

Answer: -3x²-9x+84

Step-by-step explanation:

Let the zeros be r1 and R2

The equation of a parabola going through those two zeros is

y=a(x−r1)(x−r2)

4 0
3 years ago
(-9) + (+3)=<br> in adding integers
Umnica [9.8K]

Answer:

The answer is -6

hope this helps

have a good day :)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Public health officials believe that 90% of children have been vaccinated against measles. A random survey of medical records at
Vikentia [17]

Answer:

The answer to the question is;

Yes, it is very significant as the number of of observed vaccinated children is below the number of actually vaccinated children by 78.

Step-by-step explanation:

The result of the survey of more than 13,000 children indicate that only 89.4 % had actually been and the P-value indicate that the chance of having a sample proportion of 89.4 %  vaccinated is 1.1 %.

P is low at 0.011 for which however the proportion of those vaccinated is between 0.889 and 0.899 using a 95% confidence interval, whereby the decrease from 90 % believed to 89.9 % is small, albeit it depends on the size of the population.

At 89.4 %, in a sample of 13,000, the number of children expected to have been vaccinated but were missed is equal to 90 - 89.4 = 0.6 % = 0.006

Therefore the children missed = 78 children which is significant.

5 0
4 years ago
Other questions:
  • The point (−3,15) undergoes a translation of 9 units right and 10
    6·2 answers
  • Find the product of 503×6 explain how found
    15·1 answer
  • Find the lateral area and the total area of the prism.
    14·2 answers
  • A triangle has one Angle that measures 31° one angle that measures 45° and one angle that measures 140° what kind a triangle is
    14·1 answer
  • The physician writes an order for 250 mg of a medication for a patient weighing 168 pounds The label on the vial states 100 mg p
    15·2 answers
  • What is the area of the circle ? 14cm rounded to the nearest whole number? ​
    11·1 answer
  • I need help. Somebody help me out
    14·2 answers
  • The base of a triangle is 3 inches more than 2 times the height.If the area is 7 square inches, find the base and the height. ​
    9·1 answer
  • Identify which equations have one solution, Infinitely many solutions, or no solution. 3u+40+22=64—30-2 2.2z+3z = 4.5-3.2 2 + x
    14·1 answer
  • The perimeter of a quarter circle is 48.28 miles. What is the quarter circle's radius
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!