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3 years ago

If ƒ (x ) = 2x 2 + 3, find ƒ (3).

Mathematics

2 answers:

Lostsunrise [7]3 years ago

8 0

Answer:

The answer is 15

Step-by-step explanation:

If ƒ (x ) = 2x 2 + 3, find ƒ (3).

2(3)^2 +3

6^2+3

= 15

dimulka [17.4K]3 years ago

3 0

Answer:

$f(x) = 2 \times 2 + 3 \\ f(3) = 4 + 3 \\ 3f = 7 \\ f = \frac{7}{3}$

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Convert this quadratic to vertex form f(x)=(x-h)^2+k by completing the square. <br> 3x^2-6x+6=0

maria [59]

$f(x)=3x^2-6x+6\\\\f(x)=3(x^2-2x)+6\\\\f(x)=3(\underbrace{x^2-2x+1}-1)+6\\\\ f(x)=3[(x-1)^2-1]+6\\\\f(x)=3(x-1)^2-3+6\\\\f(x)=3(x-1)^2+3$

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2 years ago

In the triangle, find x, y, u, v

Gwar [14]

Answer:

x = 9
y = 12
u = 24
v = 32

Step-by-step explanation:

Each of the triangles is similar, so we have ...

3/5 = (3+x)/20

x = 20(3/5) -3

x = 9

4/5 = (4+y)/20

y = 20(4/5) -4

y = 12

3/5 = (3 + x + u)/60

u = 60(3/5) -3 -9

u = 24

4/5 = (4 +y +v)/60

v = 60(4/5) -4 -12

v = 32

8 0

3 years ago

The perimeter of a square is 252 feet how long is each side

gogolik [260]

Answer:

63 feet

Step-by-step explanation:

perimeter is the sum of all four sides and, since it's a square then all sides are equal

to find how long each side is divide 252 by 4

252÷4 = 63

6 0

2 years ago

Read 2 more answers

Elise and her dad are planning to attend the state fair. An adult ticket is $21.00. The price of an adult ticket is $10.00 more

solong [7]

Answer:

C. two thirds x + 10 = 21

Step-by-step explanation:

Given

Price of adult ticket = $21.00

Let x be the price of student ticket

Then

two third of the student ticket will be:

$\frac{2}{3} x$

The statement $10.00 more than two third of student ticket:

$\frac{2}{3} x+10$

As we are given in the question that the adult ticket price is $21.00 and the second explanation is th equation formed by the given statement

So, both will be equivalent

$\frac{2}{3} x+10 = 21$

Solving this equation for x will give us the price for the student ticket.

Hence,

C. two thirdsx + 10 = 21 is the correct answer ..

3 0

3 years ago

Is negative twelve a whole number,integer,or rational number?

mrs_skeptik [129]

Its an Integer. Integers include negative numbers, zero and positive numbers :)

8 0

3 years ago

Read 2 more answers