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3 years ago

Change 3 to 5 in exercise 4

Mathematics

1 answer:

Nonamiya [84]3 years ago

5 0

So 5 4 3 I think yeah

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A particle moves along the x-axis so that at time t≥0t\ge 0t≥0 its position is given by x(t)=−t3+6t2−9t+42.x(t)=-t^3+6t^2-9t+42.

riadik2000 [5.3K]

Answer: 4 units

Step-by-step explanation:

The given position function: $x(t)=-t^3+6t^2-9t+42.$ , where t≥0.

To determine: Total distance traveled by the particle from 0≤ t ≤ 4.0.

At t=0,

$x(0)=-(0)^3+6(0)^2-9(0)+42=42\\$

At, t=4,

$x(4)=-(4)^3+6(4)^2-9(4)+42\\\\=-64+6(16)-36+42=38$

Total distance traveled by the particle from 0≤ t ≤ 4.0 = |42-38| units

= 4 units

Hence, the distance traveled by the particle from 0≤t≤4.0 is 4 units.

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2 years ago

Which statement correctly describes the location of the incenter of a triangle?

NemiM [27]

9514 1404 393

Answer:

B) The incenter is equidistant from all three sides of the triangle.

Step-by-step explanation:

The incenter is the center of the inscribed circle, which is tangent to all three sides. Hence, the distance from the incenter to each side is the radius of the circle. The incenter is equidistant from the sides of the triangle.

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3 years ago

In Megan's class, 4/7 of the students are girls. Of the girls, 2/3 participate in sports. What fraction of Megan's class are gir

andreev551 [17]

Answer:

Step-by-step explanation:

X = the number of students in Megan's class

4/7 X = the number of girls in the class (G)

4/7 * 2/3 = the number of girls in the class who participate in sports

4/7 * 2/3 = 8/21 of girls in Megan's class participate in sports

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3 years ago

Please join help quickly

DanielleElmas [232]

Answer:

A hope its right!!

Step-by-step explanation:

Have a good day!

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3 years ago

ASAPPPPPO due at 11:59pm

wariber [46]

Answer:

Part 1 : 22

Part 2 : 34

Step-by-step explanation:

7 0

3 years ago