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
raketka [301]
3 years ago
8

If f(x)=-x^2+2x, find f(3)-7

Mathematics
1 answer:
igomit [66]3 years ago
5 0

Answer:

f(3) just means to substitute 3 in for x.

Step-by-step explanation:

f(3) just means to substitute 3 in for x.  

f

(

3

)

=

−

2

Explanation:

f

(

3

)

=

−

(

3

)

2

+

7

According to the order of operations, first square the 3, which is 9.

f

(

3

)

=

−

9

+

7

The negative sign in front of the x squared is equivalent to multiplying by negative one.

Add -9 and 7 together, which is -2

So,  

f

(

3

)

=

−

2

You might be interested in
What is the coefficient of the second term of the polynomial? (In other words, what is B?
Scrat [10]

Answer: The coefficient of the second term of the polynomial is B=5

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

7 0
2 years ago
Solve the absolute value equation 3x+2 =2 plz
Umnica [9.8K]
It is x=0 and x=-4/3
8 0
2 years ago
Read 2 more answers
Branliest to correct answer explain how you got your answer please
Nutka1998 [239]
10.7%

possibility to get a blue marker : 4/15

possibility to get a green marker: 6/15

possibility to get a blue then a green: 24/225

= 10.666666%
= 10.7%
4 0
3 years ago
In a jar of ten beads, seven are red and three are blue. a bead is drawn from the jar five times with replacement. what is the p
MatroZZZ [7]
<span>In a jar of ten beads; since 3 are blue; probability of picking a blue ball, B, = p(b) = 3/10. And P (of not picking a blue ball) ; p(b') = 7/10. Since it occurs with replacement, probabilities doesn't change Probaility of picking k blue balls from on n attempts is given by P_n(k) P_n(k) = (n, k) p^(k) q^(n -k) where p and q are b and b' respectively. P_5(2) = (5 , 2) (0.3)^(2) (0.7)^(5 - 2) P_5(2) = 5C2 (0.3)^(2) (0.7)^(3) = 0.3087</span>
6 0
3 years ago
What variable do you eliminate?<br> 4x + 8y = 20<br> - 4x + 2y = -30
sveticcg [70]
Y :!2!298-76-6-7-8-&-8-7-6
4 0
2 years ago
Other questions:
  • Can you help me please?
    8·1 answer
  • What is the slope??????
    12·2 answers
  • Each side of a square is x meters long. Each side of the square is increased by 10%.
    12·1 answer
  • Who is right please explain. WILL MARK BRAINLIEST 13 points!
    5·1 answer
  • 409381886 rounded to the nearest hundred thousand
    10·2 answers
  • What does this mean, what does the negative sign in front of the parenthesis mean? -2= -(n-8)
    13·1 answer
  • What is the area of the quadrilateral below?
    10·2 answers
  • Please Help! What decimal is less than 0.4?
    14·1 answer
  • An airplane flying with the wind takes 2 hours to travel a distance
    10·1 answer
  • Question on attached image
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!