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2 years ago

Factor the polynomial expression x^4+18x^2+81

Mathematics

1 answer:

Vikentia [17]2 years ago

4 0

Answer:

Step-by-step explanation:

Hello,

please consider the following

$x^4+18x^2+81=(x^2)^2+2*(3^2)x^2+(3)^4\\\\=(x^2+9)^2$

hope this helps

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Wilmer went up a hill for x minutes at a speed of y kilometers per minutes. Then he went down the same path at a speed of z kilo

dedylja [7]

Answer:

$xy=wz$

Step-by-step explanation:

Given that:

Speed of Wilmer up the hill = $y$ km/min

Time taken up the hill = $x$ minutes

Speed of Wilmer down the hill = $z$ km/min

Time taken up the hill = $w$ minutes

Distance can be calculated by multiplying the Speed with Time i.e.

The formula for distance is given as:

$Distance = Speed \times Time$

Distance up the hill = $y\times x =xy\ kilometers$

Distance down the hill = $z\times w =wz\ kilometers$

It is well known that, the distance up the hill and down the hill will be same.

Putting both the values equal, we get:

$xy=wz$

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2 years ago

Consider the quadratic function:

MrRissso [65]

Answer: the vertex would be (4,-25)

Step-by-step explanation:

id suggest using desmos. its an app/website and is super helpful.

8 0

3 years ago

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RSB [31]

Answer:

the tables have a pattern of consistancy

Step-by-step explanation:

7 0

3 years ago

A board 96 inches long is cut into 2 pieces. The first piece is 6 inches longer than twice the length of the second piece. How l

Sveta_85 [38]

Answer:

The length of the board is 60 inches. It's cut into two parts so that the longer piece is 5 times of the shorter part. The equation is formed as under...

Let's assume the shorter part is … x then the longer part is... 5x. The total parts are..

x + 5x = 6x and given that 6x is equal to 60 inches. Therefore...

If 6x = 60 inches then

x = 60/6 = 10 inches and the longer piece is 5x = 5.10 = 50 inches.

The shorter piece is 10 inches long and the length of the longer piece is 50 inches. Answer. Thanks.

Step-by-step explanation:

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4 0

3 years ago

what is the answers?? please lmk i need the hours of Monday to Tuesday and how many hours did the Jacobys did in all ,please exp

SSSSS [86.1K]

Answer:

Step-by-step explanation:

A. Hours driving on monday= $5\frac{3}{4}$ =23/4 hours (5 x 4 +3)

Hours driving on tuesday= $4\frac{3}{4}$ =19/4 hours (4 x 4 +3)

Total hours = 23/4 + 19/4 = 42/4 = $10\frac{2}{4}$ hours

B. Total hours driving = Hours driving on (Monday + tuesday + wednesday + thursday)

Hours driving on wednesday= $2\frac{1}{4}$ =9/4 hours (2 x 4 +1)

Hours driving on thursday= $6\frac{3}{4}$ =27/4 hours (6 x 4 +3)

Total hours driving = 23/4 + 19/4 + 9/4 +27/4 = 78/4 = $19\frac{2}{4}$ hours

7 0

2 years ago