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
Likurg_2 [28]
3 years ago
8

I need help!!!!!!!!!!!!!!

Mathematics
2 answers:
stira [4]3 years ago
7 0
The answer would have to be d
Sonbull [250]3 years ago
5 0
The answer should have to be b
You might be interested in
The difference of the square of a number and 4 is equal to 3 times that number. Find the negative solution.
leonid [27]

The negative solution is x = –1.

Solution:

Let the number be x.

Square of a number = x²

3 times a number = 3x

Difference of square of a number and 4 = 3 times that number

\Rightarrow x^2-4=3x

Subtract 3x from both sides of the equation, we get

\Rightarrow x^2-3x-4=0

–3x can be written as x – 4x.

\Rightarrow x^2+x-4x-4=0

\Rightarrow( x^2+x)+(-4x-4)=0

1st bracket have common term x and bracket have –4 common term.

\Rightarrow x( x+1)-4(x+1)=0

Take common term x + 1 outside.

(x+1)(x-4)=0

<em>By zero factor principle, if AB = 0 then A = 0 or B = 0.</em>

x + 1 = 0,   x – 4 = 0

x = –1,   x = 4

The negative solution is x = –1.

7 0
3 years ago
George has $49 which he decides to spend on x and y. commodity x costs $5 per unit and commodity y costs $11 per unit. he has th
FromTheMoon [43]

We are given the equations:

<span>5 x + 11 y = 49                    --> eqtn 1</span>

<span>u = 3 x^2 + 6 y^2               --> eqtn 2</span>

 

Rewrite eqtn 1 explicit to y:

11 y = 49 – 5 x

<span>y = (49 – 5x) / 11               --> eqtn 3</span>

 

Substitute eqtn 3 to eqtn 2:

u = 3 x^2 + 6 [(49 – 5x) / 11]^2

u = 3 x^2 + 6 [(2401 – 490 x + 25 x^2) / 121]

u = 3 x^2 + 14406/121 – 2940x/121 + 150x^2/121

u = 4.24 x^2 – 24.3 x + 119.06

Derive then set du/dx = 0 to get the maxima:

du/dx = 8.48 x – 24.3 = 0

solving for x:

8.48 x = 24.3

x = 2.87

 

so y is:

y = (49 – 5x) / 11 = (49 – 5*2.87) / 11

y = 3.15

 

Answer:

<span>George will choose some of each commodity but more y than x.</span>

7 0
3 years ago
An image is dilated at a scale factor of 1.5. This means the dilation is an enlargement and the dilated image will be bigger."
brilliants [131]

the answer is: (T R U E........)

8 0
2 years ago
Gordon has a round tablecloth with a radius of 4 feet. What is the tablecloth's diameter?<br> feet
lozanna [386]

Answer:

it's a round so

d=2r

d=8 feet

8 0
3 years ago
While studying abroad in France, you offer to bake your grandmother's famous cookies for other students in your program. You hav
IRINA_888 [86]

Answer:

22.8 kl

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Let p0, p1, and p2 be the orthogonal polynomials described below, where the inner product on P4 is given by evaluation at -2, -1
    9·1 answer
  • Someone explain how to do this
    12·2 answers
  • In a normally distributed data set a mean of 55 where 99.7% of the data fall between 47.5 and 62.5, what would be the standard d
    13·1 answer
  • The length of a rectangle is 7 inches more than three times the width. the perimeter is 94 inches. find the length and width.
    5·1 answer
  • Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. Whe
    14·1 answer
  • Anais bought 2% yards of ribbon. She had 1 feet 6 inches of ribbon left after trimming some curtains. How many
    5·1 answer
  • Which fraction is equivalent to 1/6?
    5·2 answers
  • Can someone help me with this question.
    14·1 answer
  • What is the slope of the line shown in the graph?
    9·2 answers
  • Which number is irrational?<br> OA. 0.45<br> OB. 0.636363...<br> O C. √25<br> OD. √6
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!