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
Alex17521 [72]
3 years ago
11

Evaluate the expression 4x^2 + 3y for x = 5 and = 6.

Mathematics
1 answer:
arsen [322]3 years ago
6 0

Answer: 118

Step-by-step explanation:

You might be interested in
How do you write -x+3y=6 in slope intercept form?
Afina-wow [57]

Commenter jdoe said it right: solve for y and leave the rest on the other side.

-x + 3y = 6

3y = 6 + x add x on both sides

3y = x + 6 rearrange to get the x first

y = (x + 6) /3 divide both sides by 3

y = x/3 + 6/3 split the numerator (caution - never split denominators)

y = x/3 + 2 simplify 6/3


Thus the line in slope intercept form of y = mx + b is y = y = \frac{1}{3} x + 2


8 0
3 years ago
Read 2 more answers
Write the equation of the line that passes through the points (2,0) and (1,-2)
Darya [45]

Answer:

y

=

2

x

−

1

Explanation:

First, we need to determine the slope of the line. The formula for determining the slope of a line is:

m

=

y

2

−

y

1

x

2

−

x

1

where

m

is the slope and the x and y terms are for the points:

(

x

1

,

y

1

)

and

(

x

2

,

y

2

)

For this problem the slope is:

m

=

3

−

−

1

2

−

0

m

=

3

+

1

2

m

=

4

2

m

=

2

Now, selecting one of the points we can use the point slope formula to find the equation.

The point slope formula is:

y

−

y

1

=

m

(

x

−

x

1

)

Substituting one of our points gives:

y

−

−

1

=

2

(

x

−

0

)

y

+

1

=

2

x

Solving for

y

to put this in standard form gives:

y

+

1

−

1

=

2

x

−

1

y

+

0

=

2

x

−

1

y

=

2

x

−

1

Answer linky

=

2

x

−

1

Explanation:

First, we need to determine the slope of the line. The formula for determining the slope of a line is:

m

=

y

2

−

y

1

x

2

−

x

1

where

m

is the slope and the x and y terms are for the points:

(

x

1

,

y

1

)

and

(

x

2

,

y

2

)

For this problem the slope is:

m

=

3

−

−

1

2

−

0

m

=

3

+

1

2

m

=

4

2

m

=

2

Now, selecting one of the points we can use the point slope formula to find the equation.

The point slope formula is:

y

−

y

1

=

m

(

x

−

x

1

)

Substituting one of our points gives:

y

−

−

1

=

2

(

x

−

0

)

y

+

1

=

2

x

Solving for

y

to put this in standard form gives:

y

+

1

−

1

=

2

x

−

1

y

+

0

=

2

x

−

1

y

=

2

x

−

1

Answer link

4 0
2 years ago
7. Solve for 6s3(5s2)(3s4) =
gayaneshka [121]

Simplify  (we cannot solve if there is no equals)

6s^3(5s^2)(3s^4)

multiply the coefficients, add the exponents since the bases are the same

(6*5*3) s^(3+2+4)

90 s^(9)

5 0
3 years ago
Express 15 2/3 in simplest radical form
Usimov [2.4K]

Answer:

Express 15 2/3 in simplest radical form 1

3 0
3 years ago
Determine the open t-intervals on which the curve is concave downward or concave upward. (Enter your answer using interval notat
Rashid [163]

Solution :

We have been given a parametric curve :

x = sin t , y = cos t , 0 < t < π

In order to determine concavity of the given parametric curve, we need to evaluate its second derivative first.

Therefore,

$\frac{dx}{dt} = \cos t, \ \frac{dy}{dt}= - \sin t$

$\therefore \frac{dy}{dx}= \frac{- \sin t}{\cos t}$

        $=- \tan t$

Taking double derivatives of the above equation:

$\frac{d^2y}{dx^2}= - \frac{d}{dx}(\tan t) $

      $= - \sec^2 t \frac{dt}{dx}$

     $= - \sec^2 t \left(\frac{1}{\cos t}\right)$

    $= - \sec^3 t$

For the concave up, we have

$\frac{d^2y}{dx^2} > 0$

$\Rightarrow - \sec^3 t > 0$

∴ $t \  \epsilon \left( \frac{\pi }{2}, \pi \right)$

For the concave down, we have

$\frac{d^2y}{dx^2} < 0$

$\Rightarrow - \sec^3 t < 0$

$t \  \epsilon \left( 0,\frac{\pi }{2} \right)$

8 0
3 years ago
Other questions:
  • PLEASE HELP WITH MIDDLE SCHOOL MATH 1 Q THATS MULTIPLE CHOICE I NEED HELP PLEASE FOR BRAINLIEST*(08.06 MC)
    13·2 answers
  • What is the value of x?
    12·2 answers
  • Why do you divide by 60 after calculating the area of the trapezoid (to calculate the distance)? I got 900 but I don’t know why
    15·1 answer
  • What is 47/20 as a decimal
    14·2 answers
  • Which is a qualitative graph? On a coordinate plane, a line with positive slope goes through points (negative 1, 0) and (0, 3).
    10·2 answers
  • Sixty nine percent of U.S households play video or computer games. Chose 4 heads of households at random. Find the probability t
    12·2 answers
  • Solve This Please!!! Easy!!!
    12·1 answer
  • What is the volume? Use the pi button on your calculator. Round to nearest hundredth. (Don't include units, just the #.)
    14·1 answer
  • Reposting this because no body gave me the equation. An equation would be appreciated :)
    7·2 answers
  • 3(4 + x) = 45<br> What is x?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!