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3 years ago

3a+4b simplified is...

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

4 0

The answer is as simplified as low as it can be. 3a_4b

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Toma walked 2 3/10 miles on Monday. He walked 1 2/5 miles on Tuesday. How many miles did he walk?

marta [7]

Answer:

He walked 3 7/10 miles.

8 0

3 years ago

Read 2 more answers

(1 point) find the equation of the sphere centered at (−9,4,1)(−9,4,1) with radius 4. normalize your equations so that the coeff

CaHeK987 [17]

The equation of a sphere centered at (h, j, k) with radius r is

... (x -h)² +(y -j)² +(z -k)² = r²

Your sphere has center (-9, 4, 1) and radius 4, so its equation is

... (x +9)² +(y -4)² +(z -1)² = 16

This can be written in general form as

... x² + y² + z² +18x -8y -2z +82 = 0

5 0

3 years ago

grandymaker [24]

Answer:

2 seconds
72 feet

Step-by-step explanation:

The usual equation used for the vertical component of ballistic motion is ...

h(t) = -16t² +v₀t +h₀

where v₀ is the initial upward velocity, and h₀ is the initial height. Units of distance are feet, and units of time are seconds.

Your problem statement gives ...

v₀ = 64 ft/s

h₀ = 8 ft

so the equation of height is ...

h(t) = -16t² +64t +8

For quadratic ax² +bx +c, the axis of symmetry is x=-b/(2a). Then the axis of symmetry of the height equation is ...

t = -64/(2(-16)) = 2

The object will reach its maximum height after 2 seconds.

The height at that time will be ...

h(2) = -16(2²) +64(2) +8 = 72

The maximum height will be 72 feet.

5 0

3 years ago

Juan is going to take a flight from Orlando, Florida, to Los Angeles, California.

andreyandreev [35.5K]

Answer:

The correct option is A:

A) Time of flight = 7 hours 5 minutes

Step-by-step explanation:

For eastern time zone, t = 12:00 pm

Then, pacific time zone , t = 9:00 am

Which means the pacific time lags 3 hours to eastern time

Time of departure = 9:15 am (eastern time)

TIme of arrival = 1:20 pm (pacific time)

Either convert both of them into eastarn time zone or pacific time zone to find the time of the flight. The answer for both will be the same.

Converting both in pacific time zone.

Time of arrival = 1:20 pm (pacific time)

Time of departure = (9:15 am (eastern time) - 3 hours) (pacific time)

Time of departure = 6:15am (pacific time)

Time of flight = Time of arrival - Time of departure

Time of flight = 1:20pm - 6:15am

Time of flight = 7 hours 5 minutes

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3 years ago

Mary purchased 3 yards of fabric from a roll containing

Serggg [28]

Answer:

Step-by-step explanation:

If Mark purchased 3 yards there would be 509 yards left, divide that by 12 and you get 42.416 yards reamaing, or 42 full 12 yard fabrics.

7 0

3 years ago