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
Marrrta [24]
3 years ago
12

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

Mathematics
1 answer:
Inessa [10]3 years ago
3 0

Answer:

f(3) = -2

Step-by-step explanation:

Given the f(x) = -2x² + 3x + 7, to find f(3):

We can substitute 3 as the value of x in the given function:

f(x) = -2x² + 3x + 7

f(3) = -2(3)² + 3(3) + 7

f(3) = -2(9) + 9 + 7

f(3) = -18 + 9 + 7

f(3) = -9 + 7

f(3) = -2

Therefore, f(3) = - 2.

Please mark my answers as the Brainliest if you find this explanation helpful :)

You might be interested in
Quadrilateral CAMP below is a rhombus. The length of PQ is (x + 2) units, and the length of QA is
Phoenix [80]

Q cuts the diagonal PA into 2 equal halves, since the diagonals of rhombus meet at right angles.

<u>Step-by-step explanation:</u>

As given by the statement in the problem,

Q may be the middle point, which cut the diagonal PA into 2 equal halves.

In rhombus, diagonals meet at right angles.

which means that PQ = QA

x+2 = 3x - 14

Grouping the terms, we will get,

3x -x = 14+ 2

2x = 16

dividing by 2 on both sides, we will get,

x = 16/2 = 8

8+2 = 3(8) - 14 = 10 = PQ or QA

3 0
3 years ago
The perimeter of a<br> square garden is 36 feet.<br> Find the side length of<br><br> the square.
lana66690 [7]

Answer:

uhhhh

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please answer this correctly
Serggg [28]

Answer:

502 m²

Step-by-step explanation:

We require to find b before calculating the surface area.

The volume (V) of a cuboid is calculated as

V = lbh ( l is length, b is breadth and h is height )

Here V = 510, l = b, b = 10 and h = 3, thus

b × 10 × 3 = 510

30b = 510 ( divide both sides by 30 )

b = 17

--------------------------

The opposite faces of a cuboid are congruent, thus

top/bottom area = 2(17 × 10) = 2 × 170 = 340 m²

front/back area = 2(17 × 3) = 2 × 51 = 102 m²

sides area = 2(10 × 3) = 2 × 30 = 60 m²

Surface area = 340 + 102 + 60 = 502 m²

3 0
3 years ago
What is the circumference of a circle with a diameter of 7 inches
Mrrafil [7]
It’s 21.99


Use c=2pi*radius
Diameter divided by 2 = radius
6 0
2 years ago
Find Missing Angle
Neporo4naja [7]

Answer:

75 degrees

Step-by-step explanation:

Use trigonometry

we are given opposite(27) and hypotenuse(28), so use sin

sin=opp/hyp

sin(x)=27/28

x=arcsin(27/28)

x=74.64111442

6 0
3 years ago
Other questions:
  • What is the algebraic expression for the following word phrase: the sum of 5 and 2x?
    12·1 answer
  • Which number line shows the graph of x&gt;11?
    14·2 answers
  • If a kid was playing for 4 hours and he did 9 activitys how much time did each activity take
    5·2 answers
  • Multiply these polynomials.
    6·1 answer
  • Which is greater: 0.75 or 0.69?
    7·2 answers
  • Sort the following objects by length. Place the shortest object at the top.
    7·1 answer
  • I will give brainiest to whoever answers correctly !!
    13·1 answer
  • The positive multiples of a whole number were listed from least to greatest. If the third multiple was 42, what was the 5th mult
    11·1 answer
  • a 2.5kg mass is held above the ground and has 50 J of gravitational potential energy. the mass is then dropped and accelerates t
    5·1 answer
  • Hey who can solve this
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!