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
lesya692 [45]
2 years ago
13

If f(x)=5x-7,what isf(3)?​

Mathematics
1 answer:
ArbitrLikvidat [17]2 years ago
4 0

Answer:

Explanation:

f  (  − 3 )  basically means substitute  − 3  for  x  in the function  − 5 x

f

(

−

3

)

=

−

5

(

−

3

)

−

7

f

(

−

3

)

=

15

−

7

f

(

−

3

)

=8

Step-by-step explanation:

You might be interested in
What is the measure of ZBAC?
IceJOKER [234]

Answer:

80 degrees

Step-by-step explanation:

Sum of the interior angles of a triangle = 180

a + 50 + 50 = 180

a = 80

6 0
2 years ago
A bicycle lock has a four-digit code. The possible digits, 0 What is the probability that the lock code will begin with
nika2105 [10]

Answer:

0.1-0.6

Step-by-step explanation:

First let's find the number of the elements in the sample space, that is the total number of codes that can be produced.

The first digit is any of {0, 1, 2...,9}, that is 10 possibilities

the second digit is any of the remaining 9, after having picked one. 

and so on...

so in total there are 10*9*8*7 = 5040 codes.

a. What is the probability that the lock code will begin with 5?

Lets fix the first number as 5. Then there are 9 possibilities for the second digit, 8 for the third on and 7 for the last digit.

Thus, there are 1*9*8*7=504 codes which start with 5.

so 

P(first digit is five)=

b. What is the probability that the lock code will not contain the number 0? 

from the set {0, 1, 2...., } we exclude 0, and we are left with {1, 2, ...9}

from which we can form in total 9*8*7*6 codes which do not contain 0.

P(codes without 0)=n(codes without 0)/n(all codes)=(9*8*7*6)/(10*9*8*7)=6/10=0.6

Answer:

0.1 ; 0.6

8 0
3 years ago
Read 2 more answers
The total simple interest on $1600 invested for five years is $224. What is the percentage rate per annum?
mash [69]

Answer:

The percentage rate per annum is 2.8%

Step-by-step explanation:

We need to multiply the principal by the time, then divide the interest by the product of P×T, so:

1,600 × 5 = 8,000

224 ÷ 8,000 = 0.028

Then we convert our final product to a percentage.

0.028 to a percent is 2.8%

6 0
2 years ago
Read 2 more answers
Please solve this law of indices​
PilotLPTM [1.2K]

4√36^-1 = 36^-1/4

36^3/4 • 36^-1/4

=36^2/4

or √36 = 6

5 0
2 years ago
Read 2 more answers
What is the right answer?? Please tell meeee
telo118 [61]

Answer:

2\sqrt{x}+\frac{1}{2\sqrt{x}}\left(2x+3\right)

Step-by-step explanation:

which is D on your phone

6 0
3 years ago
Other questions:
  • 22 + Ча= За –13<br> Solve for a
    12·2 answers
  • A gymnasium can hold no more than 650 people. A permanent permanent bleacher in the gymnasium holds 136 people. The event organi
    15·2 answers
  • Find the measures of the numbered angles for each parallelogram number 11
    6·1 answer
  • divide 24 fish into five groups. What is the remainder of this division? Hint: Group the fish into sets of 5, and count how many
    11·2 answers
  • The base of an exponential model is 1.024. Is the base a growth or decay factor , why or why not?
    7·2 answers
  • Wats da anwser 4×70=4×7×_
    11·2 answers
  • F is perpendicular to line m whats blank
    8·1 answer
  • Find the area and perimeter of the square using formula and
    15·1 answer
  • Which of these expressions equal 15 when x=1/2 and y=3? Circle all that apply. Please help with this my teacher need me to work
    9·1 answer
  • A stadium has 50,000 seats. Seats sell for $25 in section A, $20 in section B, and $15 in section C. The number of seats in sect
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!