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
zysi [14]
3 years ago
12

Solve for f(-3) f(x)=5-x f(-3)= ? pls helpppp

Mathematics
1 answer:
RoseWind [281]3 years ago
5 0
F(-3) = 8

Plug -3 into x and just solve it.
You might be interested in
There are 10 balls in an urn, numbered from 1 to 10. If 5 balls are selected at random and their numbers are added, what is the
Kisachek [45]

Let B_i denote the value on the i-th drawn ball. We want to find the expectation of S=B_1+B_2+B_3+B_4+B_5, which by linearity of expectation is

E[S]=E\left[\displaystyle\sum_{i=1}^5B_i\right]=\sum_{i=1}^5E[B_i]

(which is true regardless of whether the X_i are independent!)

At any point, the value on any drawn ball is uniformly distributed between the integers from 1 to 10, so that each value has a 1/10 probability of getting drawn, i.e.

P(X_i=x)=\begin{cases}\frac1{10}&\text{for }x\in\{1,2,\ldots,10\}\\0&\text{otherwise}\end{cases}

and so

E[X_i]=\displaystyle\sum_{i=1}^{10}x\,P(X_i=x)=\frac1{10}\frac{10(10+1)}2=5.5

Then the expected value of the total is

E[S]=5(5.5)=\boxed{27.5}

8 0
3 years ago
HELP PLEASE FOR 35 POINTS!!!! Solve the rational equation 3 divided by x equals quantity 4 times x plus 3 divided by x squared,
denis23 [38]

Answer:

x=-3

Step-by-step explanation:

So, we are given:

\frac{3}{x}=\frac{4x+3}{x^2}

First, we should immediately rule out 0 as an answer. This is because the if x=0, the equation would be undefined.

x\neq 0

Now, cross multiply.

3(x^2)=x(4x+3)

3x^2=4x^2+3x

Divide everything by x (and we can do this safely because we already know x cannot be equal to zero).

3x=4x+3

-x=3

x=-3

We didn't run into any possibilities for extraneous solutions.

7 0
3 years ago
Which of the following would be the best equation for the function of the values for Frankie’s reading?
weeeeeb [17]

Answer:

B would be the answer.

Step-by-step explanation:

Because 1 x 35 is 35. 35 x 2 is 70. 35 x 3 is 105. And so on. :> Good luckk

4 0
2 years ago
Read 2 more answers
Pls answer the question
AURORKA [14]

Answer:

the answer is 35

Step-by-step explanation:

5 0
2 years ago
6. Știind că a·b+a:C= 100 și b+c= 20, atunci a este
lorasvet [3.4K]
B 200 .................
3 0
3 years ago
Other questions:
  • Given that the points (-5, 7), (5, 7), (5, 1), and (-5, 1) are vertices of a rectangle, how much shorter is the width than the l
    8·1 answer
  • A package states that there are 60 calories in 12 crackers and 75 calories in 15 crackers. Since the relationship is proportiona
    10·1 answer
  • How to factor 8x^3-216
    11·2 answers
  • How do I solve this?
    9·2 answers
  • Express 0.7 as a fraction
    15·2 answers
  • Can someone help me with this<br> 2x+4y+3z=6<br> x-2y+z=-5<br> -x-3y-2z=-7<br> solve for x,y,z
    5·1 answer
  • -5x - 4y + 2x + 7y = can someone help me with this please
    12·1 answer
  • I love you. You are worth it.
    11·2 answers
  • What is the volume of this triangular prism<br> 20 mm<br> 10 mm<br> 8 mm
    5·1 answer
  • (Please someone help me with this!) (No Links!)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!