2 years ago

(5y^4 + 2y^5)(-3y^6 + 7y^8)

Mathematics

1 answer:

madam [21]2 years ago

4 0

Answer:

14 $y^2+35y^12-6y^11-15y^10$

Step-by-step explanation:

Simply by distributing 5y^4 to the first two terms and then distribute 2y^5 to the same two terms and then add the like terms.

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3 years ago

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Solve the equation on the interval [0,2π). 7 sec x-7=0, x=?

Oksanka [162]

$\huge \bf༆ Answer ༄$

Let's solve ~

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:7 \sec(x) - 7 = 0$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:7 \sec(x) = 7$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \: \sec(x) = 7 \div 7$

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8 0

1 year ago

A parachute speed free fall reaches 45 meters per second what is this speed in feet per second at this speed how many feet will

Alla [95]

The speed is:

S = 742.5ft

The distance that the parachutist falls in 5 seconds is:

D = 742.5ft

<h3>How to get the speed in feet per second?</h3>

We know that the speed in free fall is:

S = 45 m/s.

We know that:

1 m = 3.3ft

Then we can rewrite the speed as:

S = 45 m/s = 45 *(3.28ft)/s = 148.5 ft/s

Then, the distance that the parachutist falls during 5 seconds is:

D = S*5s = (148.5 ft/s)*5s = 742.5ft

If you want to learn more about speed:

brainly.com/question/4931057

#SPJ1

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1 year ago