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4 years ago

Which of the following expressions are polynomials and which are not (why?) 1/x^3 +x^2

Mathematics

1 answer:

goldenfox [79]4 years ago

5 0

Answer:

none shown

Step-by-step explanation:

1/x^3 = x^(-3) has a negative exponent. It does not match the requirement that exponents be a non-negative integer. Therefore, any expression containing 1/x^3 will not be a polynomial.

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You are given the steps for constructing the bisector of an angle using a compass and a straightedge. Arrange the steps in the c

postnew [5]

Mark as brainiest

1) place the compass needle on the external point r.2) make the compass width greater than the distance from r to the given line.
3) draw an arc cutting the given line at two points.
4) mark and label the points of intersection p and q.
5) without changing the compass width, move the compass needle to q and draw another arc below the line crossing the previous arc.
6) move the compass needle to p and make an arc below the line.
7) mark and label the point of intersection s.
8) draw a line from the external point r to the point where the arcs intersect, s.
9) line rs is perpendicular to line pq and passes through the external point r.

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3 years ago

A force of 90 Newton's is applied to a 20cm2 surface. The force applied is then increased by 5 Newton's and the surface is incre

Debora [2.8K]

Answer:

15.56%

Step-by-step explanation:

The force applied, F, to the surface is 90N.

The area, A, of the surface is $20 cm^2$ = $0.002m^2$

The pressure on the surface is:

P = F / A = 90 / 0.002 = 45000 Nm^2

The force is increased by 5N, the new force is 95N.

The surface area is increased by 5 cm^2 = 0.0005 m^2. The new surface area is 0.0025 m^2.

The pressure is now:

P = 95 / 0.0025 = 38000 Nm^2

The percentage decreased is gotten by dividing the difference in the two values by the old value and then multiplying by 100.

=> Difference = 45000 - 38000 = 7000

% decrease is therefore:

= 7000 / 45000 * 100 = 15.56%

There was a 15.56% decrease.

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3 years ago

Jacob bought 7 T shirts for $32.90 Kyle bought 12 T shirts for $60.00

soldier1979 [14.2K]

<span>Part A: Kyle is incorrect

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Part B: <span>Brenden paid $37.60</span>

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4 years ago

Read 2 more answers

Is h(x)=3x^3+2x^2+5 even, odd, or neither?

pochemuha

Answer:

Neither even or odd

Step-by-step explanation:

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3 years ago

Erin has 3 guppies more than zebrafish and has twice as many zebra fish as goldfish. If Erin has 23 fish total, how many of each

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13 guppies 12 zebra fish 8 goldfish

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3 years ago