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
umka2103 [35]
3 years ago
5

Find f(3). f(x) = x2 + 5x - 9 A) 7 B) 10 C) 9 D) 15

Mathematics
1 answer:
Lelechka [254]3 years ago
4 0

Answer:

f(3) = 15. Correct: D)

Explanation:

<u>Numeric Value of a Function</u>

The value of a function f(x) when x = a is calculated by replacing the x for a. We have the function:

f(x)=x^2+5x-9

It is required to find f(3), or the numeric value of f when x=3. Replace x for 3

f(3)=3^2+5(3)-9

f(3)=9+15-9

f(3)=15

A) Incorrect. f(3) is not 7

B) Incorrect. f(3) is not 10

C) Incorrect. f(3) is not 9

D) Correct. f(3) =15 as found above.

You might be interested in
If angle EOF = 26 and angle FOG = 38., then what is the measure of angle EOG? The diagram is not to scale.
sladkih [1.3K]

Answer:

EOG is 64

Step-by-step explanation:

We can have a diagram for this.

From the description in the question, we can see that the ray FO splits the angle into 2.

We can have the diagram as shown in the attachment;

So mathematically;

EOG = EOF + FOG

So EOG = 26 + 38

EOG = 64 degrees

Please check attachment for a diagram

4 0
3 years ago
Order the numbers 0.64, 2/3 , 65%, and 7/10 from least to greatest.
GalinKa [24]
2l3 , 7l10 , 0.64 , 65%
7 0
3 years ago
Read 2 more answers
Need help asap important! thanks so much!
a_sh-v [17]

Answer:

You would have $343.37 at the end of the 2 years.

Step-by-step explanation:

Interest earned is like bonus money the bank pays you just for keeping money

\mathrm{Compund\:Interest\:Formula}:\quad A =  P {  \left( 1+ \dfrac{ r  }{ n  }    \right)    }^{ nt  }

P: the starting balance of the account (also called initial deposit, or principal)

A: the new balance in the account after N years.

t: the number of years or time

r: the interest rate, (in decimal form)

n: the number of times the interest is compounded each year.

Annually = each year = 1

P =$300, r = 7%, t = 2, n = 1, A = ?

Substitute the numbers into the "Compound Interest Formula".

A =  300 {  \left( 1+ \dfrac{ 0.07  }{ 1  }    \right)    }^{ 1 \times  2  }

\mathrm{Anything\:divided\:by\:1\:gives\:itself}

A =  300 {  \left( 1+0.07  \right)    }^{ 1 \times  2  }

\mathrm{Add\:1\:and\:0.07\:to\:get\:1.07}

A =  300 \times   { 1.07  }^{ 1 \times  2  }

\mathrm{Multiply\:1\:and\:2\:to\:get\:2}

A =  300 \times   { 1.07  }^{ 2  }

\mathrm{Calculate\:1.07\:to\:the\:power\:of\:2\:and\:get\:1.1449}

A =  300 \times  1.1449

\mathrm{Multiply\:300\:and\:1.1449\:to\:get\:343.47}

A =  343.47

So you would have $343.37 at the end of the 2 years.

Look at the chart

\mathrm{Year}\quad \mathrm{Year\: Interest}\quad \mathrm{Total\:Interest}\quad \mathrm{Balance}\\\quad1\quad\quad\quad $21.00\quad\quad\quad\quad $21.00\quad\quad\quad\quad $321.00\\\quad2\quad\quad\quad $22.47\quad\quad\quad\quad $43.47\quad\quad\quad\quad $343.47

8 0
2 years ago
Identify the distance between the points (9,7,3) and (5,3,2), and identify the midpoint of the segment for which these are the e
Daniel [21]

Answer:

<em>dggkydkyrmhxmfjiildtlitslursusappurshfufzppufpu7sritstisitsuprspursur74s</em>

Step-by-step explanation:

she will is has p7w407wsdddfduufuur5e

8 0
3 years ago
Prove the following equation has no solutions.<br><br> 13t+6=12+13t
Alex73 [517]
13t-13t=0
so your left with 
6=12 
which is a false statement which makes this equation have no solutions

8 0
2 years ago
Other questions:
  • Which of the following points is collinear with (2, 1) and (3, 3)?
    6·1 answer
  • Which of the following is not a solution to the equation - 2x + 3y=9.
    10·1 answer
  • The diagonal length of a rectangular playing field is 76 feet, and its width is 48 feet. How long is the playing field?
    5·1 answer
  • Use the fraction strips to answer. Choose the sign that goes between the two fractions.
    10·1 answer
  • 8x-6+2x=44 what does x equal
    15·2 answers
  • What is the combination for 90 and 75
    11·2 answers
  • Light travels at a speed of about 186,000 miles per second. Sound travels at a speed of about 1,087 feet per second. How many ti
    6·1 answer
  • Explanation NEEDS to be included! No fake answers please! Brainliest for the best! Thank You!
    11·2 answers
  • 40 students walk to school.
    12·1 answer
  • 14. A baby weighed 7 lb 3 oz at birth. Four months later, the baby
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!