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2 years ago

Why can’t one of the names be PNM, or MPN for the plane? But MNP can? What’s the difference, and why?

Mathematics

1 answer:

Savatey [412]2 years ago

3 0

The names PNM and MPN are perfectly valid. The order of the letters doesn't matter. In fact, there are 6 ways to name this plane if we just use the 3 letters. If we include "plane Z", then there are 7 total ways to name the plane.

For some reason, your teacher wants P to be the third letter as s/he mentioned MNP and NMP. But again, the order doesn't matter.

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A bus driver started her day with an empty bus. At her first stop she picked up

lidiya [134]

Answer:

12 people.

Step-by-step explanation:

Let's do this one at a time.

First stop:

0 + 11 = 11

Second stop:

11 + 5 = 16.

16 - 7 = 9.

Third stop:

9 + 5 = 14.

14 - 2 = 12.

There were 12 people on the bus after the driver left the third stop.

8 0

2 years ago

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the

IrinaK [193]

Answer:

1,041.9feet

Step-by-step explanation:

Given the height of the rocket expressed as

y = -16x² + 245x + 104

At maximum height, dy/dx = 0

dy/dx = -32x+245

0 = -32x+245

32x = 245

x = 245/32

x = 7.65625

Get the maximum height

Recall that;

y = -16x² + 245x + 104

Substitute the value of x;

y = -16(7.65625)² + 245(7.65625) + 104

y = -937.890625 + 1,875.78125 + 104

y = 1,041.890625feet

Hcne the maximum height to the nearest foot is 1,041.9feet

4 0

2 years ago

5000 at 12% compound quarterly compared interest earned after 5 year's

hichkok12 [17]

Answer:

A = P(1+r÷100)^n

where A is amount after some days

r is the rate

n is the number of years

p is the principle (the amount of money before the interest)

A = 5000 ( 1 + 12÷100)^5

A = 8811.70

A = 8812

8 0

2 years ago

Collectively, what are the interest costs and other fees for using a credit card called?

Triss [41]

Answer:

credit line but this is more of business not a math subject btw

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3 years ago

Can someone help me out on these 2 geometry questions pls? ASAP!!!

Katena32 [7]

Question 2

1) $\overline{PR} \perp\overline{QS}, \overline{PQ} \cong \overline{PS}$ (given)

2) $\overline{PR} \cong \overline{PR}$ (reflexive property)

3) $\angle PRQ, \angle PRS$ are right angles (perpendicular lines form right angles)

4) $\triangle PRQ, \triangle PRS$ are right triangles (a triangle with a right angle is a right triangle)

5) $\triangle PRQ \cong \triangle PRS$ (HL)

Question 3

1) $\angle C$ is a right angle, $\overline{AC} \cong \overline{AE}, \overline{DE} \perp \overline{AB}$ (given)

2) $\angle DEA$ is a right angle (perpendicular lines form right angles)

3) $\triangle ACD, \triangle DAE$ are right triangles (a triangle with a right triangle is a right angle)

4) $\overline{AD} \cong \overline{AD}$ (reflexive property)

5) $\triangle ACD \cong \triangle AED$ (HL)

6) $\angle CAD \cong \angle DAE$ (CPCTC)

7) $\overline{AD}$ bisects $\angle BAC$ (if a segment splits an angle into two congruent parts, it is an angle bisector)

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2 years ago