3 years ago

HELP PLEASE

Mathematics

1 answer:

vitfil [10]3 years ago

3 0

It’s 1 because of -8x^4-x^2+2

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VikaD [51]

Answer:

a. Point S

b. Line segment PT and Line segment ST

c. PSQRU

d. Lines PR and SQ

e. Plane C and Plane QRS

Step-by-step explanation:

7 0

2 years ago

Peter has 3200 yards of fencing to enclose a rectangular area. Find the dimensions of the rectangle that maximize the enclosed a

salantis [7]

Answer:

$A = 640000\,yd^{2}$

Step-by-step explanation:

Expression for the rectangular area and perimeter are, respectively:

$A (x,y) = x\cdot y$

$3200\,yd = 2\cdot (x+y)$

After some algebraic manipulation, area expression can be reduce to an one-variable form:

$y = 1600 -x$

$A (x) = x\cdot (1600-x)$

The first derivative of the previous equation is:

$\frac{dA}{dx}= 1600-2\cdot x$

Let the expression be equalized to zero:

$1600-2\cdot x=0$

$x = 800$

The second derivative is:

$\frac{d^{2}A}{dx^{2}} = -2$

According to the Second Derivative Test, the critical value found in previous steps is a maximum. Then:

$y = 800$

The maximum area is:

$A = (800\,yd)\cdot (800\,yd)$

$A = 640000\,yd^{2}$

8 0

3 years ago

Read 2 more answers

4. Six numbers are shown.

Reptile [31]

Step-by-step explanation:

sorry i couldn't solve the last and the last second one

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comment down

If there is any kind of suspicious mistake

then sorry

7 0

3 years ago

In a video game, the chance of rain each day is always 30%. At the beginning of each day in the video game, the computer generat

Scorpion4ik [409]

Answer:

I would divide 50 by 4 (Because there are usually 4 weather conditions in game) and whichever the number is closest to it would pick that weather condition

8 0

2 years ago

PLEASE HELP ME FOR EXTRA POINTS AND BRAINLIEST ANWSER

NNADVOKAT [17]

Recall that tanA = sinA / cosA.

Therefore, tanA = (3/5) / (4/5) = 3/4.

3 0

3 years ago