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lora16 [44]
4 years ago
8

A plane flies 1640 miles in 4 hours. what is the average speed of the plane?

Mathematics
2 answers:
Lina20 [59]4 years ago
8 0
The answer to that question would be 410 miles per hour
serg [7]4 years ago
8 0

Answer:

Speed = 410 miles/hour

Step-by-step explanation:

<u>Speed = Distance / Time</u>

<em>Distance = 1640 miles, Time = 4 hours</em>

Speed = 1640/4

Speed = 410 miles/hour

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Can someone please help me solve this ill will mark best answer brainliest
lawyer [7]
X=50 because 16 × 156.25 is 2500, then decided by 50 is 50
8 0
3 years ago
How many more unit tiles must be added to the function f(x)=x2−6x+1 in order to complete the square?
Valentin [98]
<h2>8 unit tiles should be added</h2>

Step-by-step explanation:

       Function given is f(x)=x^{2}-6x+1. We wish to add more unit tiles to the function so that it becomes a complete square.

       Since the given function is of order 2, the side of the square will be order 1. Let us assume a general order 1 expression ax+b to be the side of the square.

       As the function forms the square after adding some p unit tiles, f(x)+p=(\text{Side of square})^{2}

x^{2}-6x+1+p=(ax+b)^{2}=a^{2}x^{2} +2abx+b^{2}

From comparision, a^{2}=1; 2ab=-6; b^{2}=1+p\\a=1; b=-3\\(-3)^{2}=p+1\\p=8

∴ 8 more unit tiles are required to complete the square.

10 0
3 years ago
Read 2 more answers
Which of the following properly describe slope? Check all that apply.
Lubov Fominskaja [6]

hope that helped or not

6 0
3 years ago
Find all REAL zeros of f(x) = x3 – 4x2 - 15x + 18
Kitty [74]

Answer:

Move 18 18 to the left side of the equation by adding it to both sides. x3 ...

6 0
3 years ago
Kristen invests $5,000 in a bank. The bank pays 6.45% interest compounded semi-annually. How much money will she have after 2 ye
kupik [55]

Answer:  $5,676.87

Step-by-step explanation:

Hi, to answer this question we have to apply the compounded interest formula:  

A = P (1 + r/n) nt  

Where:  

A = Future value of investment (principal + interest)  

P = Principal Amount  

r = Nominal Interest Rate (decimal form, 6.45/100= 0.0645)  

n= number of compounding periods in each year (2)  

Replacing with the values given  

A = 5,000 (1+ 0.0645/2)^ (2x2)

A = 5,000 (1.03225)^4

A = $5,676.87

5 0
3 years ago
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