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Karolina [17]
3 years ago
12

Once a commercial plane reaches the desired altitude, the pilot often travels at a cruising speed. On average, the cruising spee

d is 570 miles/hours. If a plane travels at this cruising speed for 7 hours, how far does the plane travels while cruising at this speed.
Mathematics
1 answer:
LiRa [457]3 years ago
5 0
We know that the commercial plane travels 570 miles/hour. To find out how many miles does the plane travel, we do:
570 × 7 = 3990 miles.
Therefore, the plane travel 3990 miles.
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Can someone answer this pls??
babymother [125]
<h3><u>Explanation</u></h3>
  • Given the expressions and values.

\frac{2ab +  {a}^{2}  {b}^{2}  - a}{ab}  \\  \begin{cases} a  =  - 1 \\ b = 1 \end{cases}

  • Substitute the value of a and b in the expression to evaluate.

\frac{2( - 1)(1) +  {( - 1)}^{2}  {(1)}^{2}  - ( - 1)}{( - 1)(1)}

  • Evaluate

\frac{2( - 1) + 1(1) + 1}{ - 1}  \\  \frac{ - 2 + 1 + 1}{ - 1}  \\  \frac{ - 2 + 2}{ - 1}  \\  \frac{0}{ - 1}  \Longrightarrow 0

<h3><u>Answer</u></h3>

<u>\large \boxed{0}</u>

3 0
2 years ago
15. Divide the polynomial x^3 + x^2 - 2x + 3 by (x - 1).​
Stels [109]

Answer:

x² + 2x + [3\x - 1]

Step-by-step explanation:

Since the divisor is in the form of <em>x - c</em>, use what is called <em>Synthetic Division</em>. Remember, in this formula, -c gives you the OPPOSITE terms of what they really are, so do not forget it. Anyway, here is how it is done:

1| 1 1 -2 3

↓ 1 2 0

------------------

1 2 0 3 → x² + 2x + [3\x - 1]

You start by placing the <em>c</em> in the top left corner, then list all the coefficients of your dividend [x² + 5x - 36]. You bring down the original term closest to <em>c</em> then begin your multiplication. Now depending on what symbol your result is tells you whether the next step is to subtract or add, then you continue this process starting with multiplication all the way up until you reach the end. Now, when the last term is 0, that means you have no remainder, which in this case is a 3, so what you is set the divisor underneath the remainder of 3. Finally, your quotient is one degree less than your dividend, so that 1 in your quotient can be an x², 2 becomes <em>2x</em><em>,</em><em> </em>and the remainder of 3 is set over the divisor, giving you the other factor of <em>x² + 2x + [3\x - 1]</em>.

If you are ever in need of assistance, do not hesitate to let me know by subscribing to my channel [USERNAME: MATHEMATICS WIZARD], and as always, I am joyous to assist anyone at any time.

5 0
2 years ago
Ajar contains 16 beads. 4 beads are red, 4 are yellow, 5 are green, and 3 are blue.
steposvetlana [31]

Answer:

3/16

Total no.of beads = 16

No.of blue beads = 3

Probability of picking a blue bead = 3/16

Step-by-step explanation:

Hope this helps

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2 years ago
Calculate the density of an object whose mass is 4 grams and whose volume is 2cm cubed.
LuckyWell [14K]
To find density i believe you divide the mass by volume
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3 years ago
How many times can 20 go into 148?
VikaD [51]
148/20=7...8
20 can go into 148 7 times 
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3 years ago
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