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3 years ago

Expand and simplify the following: p(2–p)+p²–p

Mathematics

2 answers:

Ira Lisetskai [31]3 years ago

4 0

Answer is just: p

................

lakkis [162]3 years ago

4 0

<h2>Answer:</h2>

<u>The answer is</u><u> p</u>

<h2>Step-by-step explanation:</h2>

See the image

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Solve the following equation: <br>(n + 1) + 3(n - 1) = 2(n - 1)(n + 1)

Mnenie [13.5K]

Answer:

n = 0, n =2

Step-by-step explanation:

Given

(n + 1) + 3(n - 1) = 2(n - 1)(n + 1) ← distribute parenthesis on both sides

n + 1 + 3n - 3 = 2(n² - 1), that is

4n - 2 = 2n² - 2 ( subtract 4n - 2 from both sides )

0 = 2n² - 4n ← factor out 2n from each term )

0 = 2n(n - 2)

Equate each factor to zero and solve for n

2n = 0 ⇒ n = 0

n - 2 = 0 ⇒ n = 2

7 0

3 years ago

A van traveling at a speed of 32.0 mi/h needs a minimum of 42.0 ft to stop. If the same van is traveling 67.0 mi/h, determine it

makkiz [27]

Answer:

Δx= 184.12 ft

Step-by-step explanation:

The equation you need to use is velocity as a function of displacement.

$v^2= u^2 +2a(\delta x)$

v = the speed at which the car is travelling,

and

v_o is the original speed (in this case zero).

The change in x (displacement) is how far the car travels. You will be solving for a (acceleration).

$32^2= 0^2+ 2a\times42$

solving we get

a= 12.19

now put this acceleration value into the second case when v= 67mi/h

$67^2= 0^2 + 2\times12.19(change in x)$

⇒Δx= 184.12 ft

5 0

3 years ago

Ye Li drew a quadrilateral that is both a rectangle and a rhombus. Name the quadrilateral and describe it using the properties o

son4ous [18]

We must look first for the properties given, so we have:
Rectangle - four sides, two pairs of opposite sides are parallel, four right anglesQuadrilateral - a four-sided figureRhombus - four sides, two pairs of opposite sides are parallel, all sides equal
So we're finding for a shape that has four sides that are all equal, with two pairs of parallel sides, and has four right angles. So from this description, we can say that it is a square. Squares have two pairs of parallel sides (like a rhombus and rectangle), four right angles (like rectangles), and four sides that are equal (like a rhombus). A square is also both a rectangle and a rhombus.

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4 years ago

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The number of major faults on a randomly chosen 1 km stretch of highway has a Poisson distribution with mean 1.7. The random var

tiny-mole [99]

The probability can be modeled using the following formula:
$P(X =3)$
wherein X follows the density
$P(X=k)=\frac{1.7^ke^{-1.7}}{k!}$
Now for k = 3 we get:
$P(X=3)=\frac{1.7^3e^{-1.7}}{3!}=0.15$
The probability we are looking for is 0.15.
Do you have any question ?

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3 years ago

You want to buy a bouquet of roses and a vase.you hope to spend 22.50.the vase cost $10 and the roses cost 2.50 each.How many ro

Stells [14]

Answer:

You can buy 35.0

Step-by-step explanation:

(2.5+(22.5+10.0))

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3 years ago

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Expand and simplify the following: p(2–p)+p²–p​

Expand and simplify the following: p(2–p)+p²–p