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
jek_recluse [69]
3 years ago
13

F(7)=3/x+2-squar root x-3

Mathematics
1 answer:
leonid [27]3 years ago
8 0
Insert x = 7
so 3/(7+2) - sqr (7-3)
=3 / (9) - sqr (4)
= 1/3 - 2
=1/3 - 6/3
= -5/3
You might be interested in
In a survey 27% of the people chose salads over a meat dish and in all 81 people chose salads. How many people were in the surve
Kobotan [32]
27%=27/100


so 27/100=81/x


27x=8100  divide by 27
x=300

that the answer

6 0
3 years ago
The table shows the average weight of animals. How many more tons does a blue whale weigh than an African elephant? Explain how
AVprozaik [17]

Answer:

The African elephant weighs <u>111.5 tons</u> less than a blue whale.

Step-by-step explanation:

Given:

Animal                         Weight(pounds)

African Elephant            15,000

Blue Whale                   238,000

Now, to find the weight of how more tons does a blue whale weigh than an African elephant.

As given, 1 ton = 2,000 pounds.

So, to convert the weight from pound to tons by dividing:

African elephant =15000\div 2000=7.5\ tons.

Blue whale =238000\div 2000=119\ tons.

Now, to get the weight of how more tons is blue whale weigh than an African elephant we subtract:

Blue\ whale - African\ elephant

=119 tons-7.5tons

=111.5\ tons

Therefore, the African elephant weighs 111.5 tons less than a blue whale.

8 0
3 years ago
Set up a double integral for calculating the flux of the vector field ????⃗ (????⃗ )=????⃗ , where ????⃗ =⟨x,y,z⟩, through the p
Tema [17]

Answer:

-937.5π

Step-by-step explanation:

F (r) = r = (x, y, z) the surface equation z = 3(x^2 + y^2) z_x = 6x, z_y = 6y the normal vector n = (- z_x, - z_y, 1) = (- 6x, - 6y, 1)

Thus, flux ∫∫s F · dS is given as;

∫∫ <x, y, z> · <-z_x, -z_y, 1> dA

=∫∫ <x, y, 3x² + 3y²> · <-6x, -6y, 1>dA , since z = 3x² + 3y²

Thus, flux is;

= ∫∫ -3(x² + y²) dA.

Since the region of integration is bounded by x² + y² = 25, let's convert to polar coordinates as follows:

∫(θ = 0 to 2π) ∫(r = 0 to 5) -3r² (r·dr·dθ)

= 2π ∫(r = 0 to 5) -3r³ dr

= -(6/4)πr^4 {for r = 0 to 5}

= -(6/4)5⁴π - (6/4)0⁴π

= -937.5π

4 0
3 years ago
Write the formula, substitution, and solve. A parallelogram is being painted on the wall of a playroom. The parallelogram measur
Andreas93 [3]

Answer:

Area: 40

Step-by-step explanation:

To find the area of a parallelogram you multiply the base times the height, or the length times the height. This is why you multiply 5x8 to get 40. The substitution could be 5 x 8 = X

X is the area.

6 0
3 years ago
2. If the data in the table were displayed in a circle graph, which percent would NOT appear in the graph? Round to the nearest
german
Adding the numbers gives us a total of 65

Jan = 20/65 = 30.7% = 31%
Feb = 25/65 = 38.4% = 38%
Mar = 1/65 = 1.5% = 2%
Apr = 3/65 = 4.6% = 5%
May = 16/65 = 24.6% = 25%

I believe ur answer is 30%


6 0
3 years ago
Other questions:
  • you translate a triangle 3 units to the right and 2 units up. the original triangle has coordinates (-3,-1),(-1,-1),(-3,-5).what
    7·1 answer
  • What occurs when electric chargers build up on objects
    15·1 answer
  • Assume that the population of the world in 2010 was 6.9 billions and is growing at the rate of 1.1 percent a year. (a) set up a
    15·2 answers
  • There are 6 red marbles, 8 blue marbles, and 11 green marbles in a bag. What is the probability that you will ra
    11·1 answer
  • Solve for x. Assume that lines which appear tangent are tangent.
    6·1 answer
  • Express as a fraction or mixed number 2%
    7·1 answer
  • If c/d - a/b =x, a =2c, and b=5d, what is the value of c/d in terms of x?
    13·1 answer
  • Evaluate the following expression if x=4 28x-9(2x+6)
    8·2 answers
  • What is the answer to -2 2 3+ 1 5 6× 2
    8·2 answers
  • You have 7 times as many nickels
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!