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
DIA [1.3K]
3 years ago
14

Please help me I will give you extra points and the brain thing please help me

Mathematics
1 answer:
9966 [12]3 years ago
4 0

Answer:

A) 32

Step-by-step explanation:

f(x) = 2x² - 24x

If f(x) = 1280, then                                    2x² - 24x = 1280

Subtract 1280 from both side ⇒ 2x² - 24x - 1280 = 0

Divide both sides by 2                 ⇒ x² - 12x - 640 = 0

Factorise                                      ⇒ (x - 32)(x + 20) = 0

Solve                                                                  ⇒ x = 32 or -20

Therefore, x = 32 (as x ≥ 0)

You might be interested in
Javiver has $15 to spend On action figures.If it’s bigger cost two dollars what is the greatest number of action figures he can
FinnZ [79.3K]
7.

15/2= 7.5
you cant get 7 and a half action figures so round down to 7
5 0
3 years ago
Write the equation in logarithmic form 3^3=27
vladimir2022 [97]

Taking logarithms, you get

3\log{(3)}=\log{(27)}\\\\3=\dfrac{\log{(27)}}{\log{(3)}}\\\\3=\log_{3}{(27)}

8 0
3 years ago
a) The weekly wages of employees of Volta gold are normally distributed about a mean of $1,250 with a standard deviation of $120
Fantom [35]

Answer:

0.7102

0.8943

0.3696

Step - by - Step Explanation :

A.) Between $1320 and $970

P(Z < 1300) - P(Z < 970)

find the Zscore of each scores and their corresponding probability uinag the standard distribution table :

P(Z < (x - μ) /σ) - P(Z < (x - μ) / σ))

P(Z < (1320 - 1250) /120) - P(Z < (970 - 1250) / 120))

P(Z < 0.5833) - P(Z < - 2.333)

0.7200 - 0.0098 = 0.7102 (Standard

=0.7102

B.)Under 1400

x = 1400

P(Z < 400)

P(Z < (x - μ) /σ)

P(Z < (1400 - 1250) /120)

P(Z < 1.25) = 0.8943

C.) Over 1290

P(Z > 1290)

P(Z < (x - μ) /σ)

P(Z > (1290 - 1250) /120 = 0.3333

P(Z > z) = 1 - P(Z < 0.3333) = P(Z < 0.3333) = 0.6304

P(Z > 0.3333) = 1 - 0.6304 = 0.3696

4 0
3 years ago
F(x)=-x-2<br> G(x)= x^2 + 1-x<br> Find (f x g)(3)
nata0808 [166]

Answer:

-36

Step-by-step explanation:

le x be 2 then

f(x) = -2-2 =-4

g(x)= 2square +1-2 =3

to find:(f×g)(3)

(-4×3)(3)

=-36

3 0
2 years ago
Solve for p.
8090 [49]

Answer:

Step-by-step explanation:

2 |p| = 14

|p| = 7

p=7or p =-7

3 0
3 years ago
Other questions:
  • There are 3 white marbles and 7 blue marbles in a bag. Jamie will randomly pick two marbles out of the bag without replacing the
    7·1 answer
  • Find the radius of the circle circumscribed around an equilateral triangle, if the radius of the circle inscribed into this tria
    12·2 answers
  • The Roberts family is shopping for a new vehicle. They are considering a minivan or an SUV. Each vehicle has three models; stand
    8·2 answers
  • Sometime outiers can have a significant effect on statistics and sometime they don't . Use the following distribution to determi
    15·1 answer
  • Based on the polynomial remainder theorem, what is the value of the function when x = 4? f(x)=x4−2x3+5x2−20x−4
    15·2 answers
  • Identify the property
    13·1 answer
  • (-3)3 power and (-7) 2nd power
    9·1 answer
  • Please help me idk this
    11·1 answer
  • Please help with a step by step!!!
    13·1 answer
  • !!!!!HELP PLEASE !!!!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!