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
Free_Kalibri [48]
2 years ago
11

Find the relative minimum of y = 3x^3 + 14x^2 - 11x - 46(___, ___)​

Mathematics
1 answer:
Darina [25.2K]2 years ago
6 0

Answer:

(0.353, -48)

Step-by-step explanation:

dy/dx = 9x² + 28x - 11 = 0

Using the quadratic formula:

x = -3.46 and 0.353

d²y/dx² = 18x + 28

Minima when d²y/dx² is positive

x = 0.35284 or (-14+sqrt(295))/9

y = 3x³ + 14x² - 11x - 46

y = -48.00651351

You might be interested in
Pls help I need this now
miv72 [106K]
The answer is A to your question
4 0
2 years ago
Last year, Maria had $10,000 to invest. She invested some of it in an account that paid 6% simple interest per year, and she inv
denis-greek [22]

Answer:

$3,000 invested at 6%

$7,000 invested at 10%

Step-by-step explanation:

Maria had total $10,000 to invest.

Let x be the amount that Maria invested initially at 6% interest rate.

0.06x

Then she invested the remaining amount at 10% interest rate.

0.10(10,000 - x)

She received a total of $880 in interest.

0.06x + 0.10(10,000 - x) = 880

0.06x + 1000 - 0.10x = 880

-0.04x = 880 - 1000

-0.04x = -120

0.04x = 120

x = 120/0.04

x = $3,000

This is the amount that Maria invested initially at 6% interest rate.

The remaining amount is

10,000 - 3,000

$7,000

This is the remaining amount that she invested at 10% interest rate.

3 0
2 years ago
What is the answer and how do you solve <br><br><br> 21x^3/3x^−1
Sunny_sXe [5.5K]

Answer:

  as written: 7x^2

  perhaps intended: 7x^4

Step-by-step explanation:

As written, the Order of Operations specifies that the only denominator factor is 3, so the expression is interpreted as ...

  \dfrac{21x^3}{3}x^{-1}=\dfrac{21}{3}x^{3-1}=7x^2

___

Sometimes grouping of denominator factors is intended, but parentheses are not written as they should be. If the intention is ...

  21x^3/(3x^-1)

then the simplification is ...

  \dfrac{21x^3}{3x^{-1}}=\dfrac{21}{3}x^{3-(-1)}=7x^4

_____

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  a^b/a^c = a^(b-c)

6 0
3 years ago
A cereal comes in three different package size what is the ratio of the cost of an 8 ounce box to a 16 ounce box of cereal
34kurt

Answer:

5-3 or 3-5

Step-by-step explanation:

8 0
3 years ago
Round your answer to the nearest hundredth.
lesya692 [45]

Answer:

AC = 2.96 (rounded to nearest hundredth )

8 0
2 years ago
Other questions:
  • The formula for the volume of a sphere is v= 4/3 3.14rWhat is the formula solved for r?
    6·1 answer
  • If you travel at a rate of 45 miles per hour, how many minutes will it take you to travel 1 mile? Justify your response
    12·1 answer
  • Question below. Please Help!
    13·2 answers
  • Cody bought a hamburger for $3 and
    9·2 answers
  • Can someone plz help me with this i need it fast
    15·1 answer
  • Answer? BRAINLIEST IF CORRECT​
    6·2 answers
  • What is the arithmetic mean of the following numbers?
    9·2 answers
  • How long will it take you to ski a distance of 25 miles at a speed of 2.5 miles per 30 minutes​
    13·2 answers
  • En una caja tenemos 45 canicas Azules y 105 canicas rojas. Cuál es la razón de canicas rojas y Azules?
    7·1 answer
  • Four students in an art class mixed red and blue paint to make purple. The amounts they used are shown in the table. Which stude
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!