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e-lub [12.9K]
3 years ago
7

Expand the polynomial: (5/8 x + y^5)(-5/8 x - y^5)

Mathematics
1 answer:
Gre4nikov [31]3 years ago
4 0
Answer: -25x^2/64 - 5xy^5/4 -y^10

First you multiply the first two, 5/8 x times -5/8x to get the first part. Then you multiply the two 5/8 and -5/8 against y^5 and - y^5 to get the second part. At the end you just multiply y^5 and -y^5 to get -y^10
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A model rocket is launched with an initial upward velocity of 57m/s. The rocket's height h (in meters) after t seconds is given
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The  values of for which the rocket's height is 29 meters are 0.75 and -0.67.

<h3>What is a velocity?</h3>

Velocity can be described as a vector quantity having both direction and magnitude which is the distance traveled per time.

We were given the  rocket's height h  as h=57t-5t^2 which is an equation, and we were been given the height which is the value that can be input into the equation as  is 29 meters , then we can proceed to simplify the equation as

h=57t-5t^2

29=57t-5t^2

then we will have  57t-5t^2-29=0

with the use of quadratic formula the values of t are : 0.75 and -0.67

Then we can chose 0.75 seconds

Therefore, after the calculation with the use of the quadratic equation, we can come into conclusion that the values that are required in the question are 0.75 and -0.67.

Learn more about velocity at:

brainly.com/question/4535155

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NOTE: This is a complete question, there were no given options, even on the internet.

6 0
1 year ago
a rectangular field is 50 M long and 30 M broad . find a perimeter b) the length of wire required to fence it thrice c)calculate
kow [346]

Answer:  b) 160 c) 1500

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8 0
3 years ago
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Aliun [14]

Answer:

The Answer is: x / y = 8 / 3

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Hope this Helps! Have an Awesome Day!! (-:

8 0
3 years ago
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Which formula can you use to find the area of a circle​
nata0808 [166]

Answer:

A = pi r^2

Step-by-step explanation:

The formula for area of a circle is given by

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8 0
3 years ago
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Analyze is the product of 0.4×1.8 greater than or less than 0.4?please explain to me
AnnZ [28]
Remember that multiplying is how many times you add a number to itself. If you multiply by 3, you add the first number to itself 3 times.

When you multiply a given number by 1, you get the first number (it doesn't change).

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When you multiply a number by more than one, you will get a number bigger than the original because you are adding it to itself more than once. Even if it is a fraction or decimal, if it is greater than 1, then the new product will be larger than the original number.

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