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
Radda [10]
3 years ago
11

WIll mark BRAINLIST plz help

Mathematics
1 answer:
Pani-rosa [81]3 years ago
3 0
F(-1) = 2(-1)^2 + 8(-1)
= 2(1) + (-8)
= -6
You might be interested in
1. ) Consider the function f(x)=5−7x2,−5≤x≤1
Marat540 [252]
1.) The interval of the value of x is from -5 to 1, inclusive. Remember that what is asked is the absolute value, thus the sign does not matter even if you have to subtract x from 5. Thus, the maximum value would be obtained if the x is smaller, which is 1. The minimum value is obtained when x=-5.

Absolute maximum value: x = - 5
f(-5) = ║5 - 7(-5)^2║ = ║-170║=170


Absolute minimum value: x = 1
f(1) = ║5 - 7(1)^2║ = ║-2║= 2

2.) The Mean Value Theorem (MVT) applies to functions that are continuous and differentiable on the closed and open interval of a to b, respectively. Since the function is a quadratic function, MVT can be applied. Then, this means that there is a value of c which is between a and b. This could be determined using this formula according to MVT:

f'(c)= \frac{f(b)-f(a)}{b-a}

The differentiated form would be f'(x) = -2x. Then,

-2c =  \frac{(4- 0^{2} )-(4- (-1)^{2}) }{0--1}=1

c=- \frac{1}{2}

Thus, x = -1, x = -1/2, and x=0 all lie in the function 4-x^2.
3 0
3 years ago
Two friends argue over who brushes their teeth more often. Who is more likely to brush both morning and evening? Assume all even
dolphi86 [110]

Answer:

d

Step-by-step explanation:

5 0
3 years ago
Math help please (80 points)
Inga [223]

Answer:

1. x^4 -x^3 -4x^2 -3

a1 = -7.4

an = an-1 -13.8  (choice 1)

Step-by-step explanation:

f(x) = x^4 -x^2 +9

g(x) = x^3 +3x^2 +12

We are subtracting

f(x) -g(x) =x^4 -x^2 +9 - ( x^3 +3x^2 +12)

Distribute the minus sign

x^4 -x^2 +9 -  x^3 -3x^2 -12

I like to line them up vertically

x^4      -x^2 +9

-  x^3 -3x^2 -12

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

x^4 -x^3 -4x^2 -3


2.  a1 = -7.4

To find the common difference, take term 2 and subtract term 1

-21.2 - (-7.4)

-21.2 + 7.4

-13.8

an = an-1 -13.8

5 0
3 years ago
Read 2 more answers
4/9 is equivalent to 8/18 ?
jeka57 [31]

Answer:

yes

Step-by-step explanation:Because if you  divide 8/18 by 2 you get 4/9 so yes

3 0
2 years ago
Read 2 more answers
What is 4x-6x I need an answe
Snowcat [4.5K]

Answer:

-2x

Step-by-step explanation:

4x-6x=-2x. You need to combine like terms or subtract 6 from 4 which is -2 the you add then put the x back in

6 0
3 years ago
Read 2 more answers
Other questions:
  • A block of wood has a mass of 180 grams. It is 10cm long 6cm wide and 4cm thick. What is its volume and density?
    11·1 answer
  • Math. answer plz ty❤️.
    15·2 answers
  • I need help with question 2. Anything is appreciated:)
    14·2 answers
  • 7x-6
    14·1 answer
  • How do I solve this
    15·2 answers
  • Write a multiplication equation for ''How many 3/4 are in 7/2?
    15·2 answers
  • What is the slope of the line that passes through (5, 4)and (7, 10) ?
    12·1 answer
  • How many 1/3 inch are in 3/4 inch?
    8·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20-%209%20%20%20%5Csqrt%7B2x%20-%204%7D%20" id="TexFormula1" title=" {
    11·1 answer
  • Help me with this plsssssssssss
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!