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
klasskru [66]
3 years ago
5

If f(x) = -2x^2 + x–5, what is f(3)?

Mathematics
1 answer:
yan [13]3 years ago
7 0

Answer:

-20

Step-by-step explanation:

Replace X by 3

f(3) = -2(3)^2+ (3)-5 = -20

You might be interested in
​58.​Anna and Maya are competing in a dance tournament where dance moves are worth a certain number of points. If a dance move i
Charra [1.4K]
225 + 75 - 30 + ?
Is ? greater or less than 298?

7 0
3 years ago
Read 2 more answers
Can someone explain the process of getting to Angle A? I know the answer is 44.1 but I need to show my work so can someone show
dsp73

Answer:

Step-by-step explanation:

First you have to calculate CB in order to use sin law to calculate ∠A

CB=\sqrt{18.4^{2} -13.2^{2} }

CB=12.8(correct to nearest tenth)

After that, use sin law to calculate ∠A,

\frac{18.4}{sin90} =\frac{12.8}{sinA}       or    \frac{sin90}{18.4} =\frac{sinA}{12.8}

sinA=0.695...

A=44.079...

  =44.1(corrext to the nearest tenth)

Is that clear enough for you?

4 0
3 years ago
Graph the equation y = x + 1<br> Show Your Work<br> .<br> 2<br> 1
SCORPION-xisa [38]

Answer:

y intercept is one and slope is one

Step-by-step explanation:

4 0
3 years ago
Find x in the given circle where o is the centre of the circle?​
artcher [175]

Answer:

X as an angle will be equal to 140°

Step-by-step explanation:

As AO = BO, AOB is an Isosceles triangle which has 2 equal angles OAB=OBA=20°, therefore BOA is equal to 140°

x is the angle opposite to BOA which will have the same angle measure.

5 0
3 years ago
What is 20/10 as a mixed number?
nadya68 [22]
Hello there!
the answer is 2

Hope this helps! :)
~zain
8 0
3 years ago
Other questions:
  • Thirteen poker chips are numbered consecutively 1 through 10, with three of them labeled with a 5 and placed in a jar. A chip is
    13·2 answers
  • Please someone help me with this
    5·2 answers
  • How do I find X Y and Z using these equations: 2x-y+2z=7 -x+2y-2z=-6 and -2x+3y-4z=-9 ?​
    15·1 answer
  • When a scatterplot is created from a table of values, which statement is correct?
    5·2 answers
  • The point where the graph intersects the y-axis represents the beginning of the
    15·1 answer
  • How do you completely factor 2x^3 + 16y^3
    12·1 answer
  • What are the degree and leading coefficient of the polynomial?
    10·1 answer
  • There are 5 red balls, 7 blue balls, and 4 white balls What is the ratio of blue balls to total balls?
    6·2 answers
  • Can you help me find x?<br> 37% of x is 44.03
    7·1 answer
  • Which statement explains how to calculate the mean of a set of data? O A. Subtract the smallest from the largest value. O B. Add
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!