Two planes travel at a constant speed. plane a travels 2,800 miles in 5 hours. plane b travels 3,885 miles in 7 hours. which plane is faster? explain your reasoning

Plane A is faster since it has a better speed than plane B.

Since Plane A travels 2,800 miles in 5 hours, the speed of plane A will be:

= 2800/5

= 560 miles per hour

Since Plane B travels 3,885 miles in 7 hours, the speed of plane B will be:

= 3885 / 7

= 555 miles per hour

Therefore, plane A is faster.

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The answer is: Plane A is faster, by 5 miles per hour.

Step-by-step explanation:

Plane A travels 2,800 miles in 5 hours.

Divide to get miles per hour:

2,800 / 5 = 560 mph

Plane B travels 3,885 miles in 7 hours.

Divide to get miles per hour:

3,885 / 7 = 555 mph

Plane A is faster, by 5 miles per hour.

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).