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3 years ago

I need help on 3and 5 PLS ASAP

Mathematics

1 answer:

AnnZ [28]3 years ago

7 0

The 3rd answer is about 1 and the 5th one is about 3 hours

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Write the contrapositive of the conditional statement. Determine whether the contrapositive is true or false. If it is false, fi

Vikentia [17]

Answer:

D is the contrapositive.

Step-by-step explanation:

Contrapositive of if A then B is if not B then not A

3 0

2 years ago

Read 2 more answers

Kelly saves $5 every week. Which expression represents the amount of money, in dollars, Kelly will save in w weeks

Svetradugi [14.3K]

Let's say x is the amount of money Kelly saves. We do not know how many weeks she is saving. If she was saving for 2, then the equation would be x=5(2). However, she is saving by w weeks, so the equation is x=5w.

8 0

3 years ago

Find the absolute maximum and minimum values of f(x,y)=xy−4x in the region bounded by the x-axis and the parabola y=16−x2.

skad [1K]

Answer:

The absolute maximum and minimum is $20\; \text{and} -20.$

Step-by-step explanation:

We first check the critical points on the interior of the domain using the

first derivative test.

$f_x=y-4=0$

$f_y=x=0$

The only solution to this system of equations is the point (0, 4), which lies in the domain.

$f_{xx}=0, \;f_{yy}=0\; \text{and}\; f_{xy}=-1$

$\Rightarrow f_{xx}f_{yy}-f_{xy}=o-1=-1$

$\therefore (0,4)$ is a saddle point.

Boundary points - $(4,0), (-4,0), (0,16)$

Along boundary $y=16-x^2$

$f=x(16-x^2)-4x$

$=16x-x^3-4x$

$\Rightarrow f^'=16-3x^2-4=0$

$\Rightarrow 3x^2=12$

$\Rightarrow x=\pm2,\;\;y=14$

Values of f(x) at these points.

$\begin{array}{}(4,0)=-16\\(-4,0)=16\\(0,16)=0\\(2,14)=20\\(-2,14)=-20\end{array}$

Therefore, the absolute maximum and minimum is $20\; \text{and} -20.$

6 0

3 years ago

15 POINTS AND BRAINLY FOR CORRECT ANSWER

hammer [34]

Answer:

The answer is 10.

Step-by-step explanation:

There would be 10 players, 2 for each group, and if each player played every other player twice, then that would mean that 20 matches of chess were played.

Hope this helped!! (:

4 0

3 years ago

HIII plz I need help ASAP!!

ELEN [110]

The answer is below.

6 0

3 years ago