Ask question

Ask question

All categories

9 months ago

6

If a flight departs fromPittsburgh at 7:55 a.m. andarrives in San Diego at9:20 a.m., how long isthe flight? Use the timezone map

?

1 answer:

Rudik [331]9 months ago

3 0

If a flight departs from Pittsburgh at 7:55 a.m. and arrives in San Diego at 9:20 a.m.,

How long is the flight?

SOLUTION

9. 20 am - 7. 55 am = 1 hour 25 mins

You might be interested in

Which of the following expressions is equivalent to a3 + b3?

lubasha [3.4K]

ANSWER
${a}^{3} + {b}^{3} = (a + b)( {a}^{2 } - ab + {b}^{2} )$

EXPLANATION

To find the expression that is equivalent to
${a}^{3} + {b}^{3}$
we must first expand
${(a + b)}^{3}$
Then we rearrange to find the required expression.

So let's get started.

${(a + b)}^{3} = (a + b) {(a + b)}^{2}$

We expand the parenthesis on the right hand side to get,

${(a + b)}^{3} = (a + b) ( {a}^{2} + 2ab + {b}^{2} )$

We expand again to obtain,

${(a + b)}^{3} = {a}^{3} + 3 {a}^{2}b + 3a {b}^{2} + {b}^{3}$

Let us group the cubed terms on the right hand side to get,

${(a + b)}^{3} = {a}^{3} + {b}^{3} + 3 {a}^{2}b + 3a {b}^{2}$

${(a + b)}^{3} = {a}^{3} + {b}^{3} + 3ab (a+ b)$

We make the cubed terms the subject,

${(a + b)}^{3} - 3ab (a+ b) = {a}^{3} + {b}^{3}$

We factor to get,

$(a + b)({(a + b)}^{2} - 3ab ) = {a}^{3} + {b}^{3}$

We expand the bracket on the left hand side to get,

$(a + b)( {a}^{2} + 2ab + {b}^{2} - 3ab ) = {a}^{3} + {b}^{3}$

We finally simplify to get,

$(a + b)( {a}^{2} - ab + {b}^{2} ) = {a}^{3} + {b}^{3}$

5 0

2 years ago

Read 2 more answers

Trevon bought one package of blueberries for $3. How many packages can Elisa buy if she has $63

kakasveta [241]

Since trevon bought one package for 3 dollars than 3 x 21 equals 63
Answer = 21

8 0

2 years ago

BRAINILEST!!!Which is the simplified form of ?

KATRIN_1 [288]

Apply the negative exponent rule, so move the expression to the denominator to make the exponents positive.

Your answer is:

1
--------------
r^7 + s^12

6 0

3 years ago

Solve for the missing value in the proportion:

OverLord2011 [107]

Answer:

A

Step-by-step explanation:

6/9=18/27

I just divided 27 by 3 which is 9

8 0

2 years ago

If someone was born 49 months ago, in which year were they born?

Vladimir79 [104]

2014 is 49 months ago

8 0

3 years ago