2 years ago

Completely factor this polynomial: 16x2-25y2

Mathematics

1 answer:

Furkat [3]2 years ago

3 0

$16x^2-25y^2=(4x)^2-(5y)^2=(4x-5y)(4x+5y)$

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PLEASE HELP 30 POINTS Prove that AM is perpendicular to BD

ch4aika [34]

Answer:

Step-by-step explanation:

AM is perpendicular to BD because they from a right angle and the definition of perpendicular is when two lines meet they form a right angle. AM goes straight down and BD form the horizontal line. These two lines form a right angle so AM is perpendicular to BD.

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2 years ago

Given f(x)=½(8-2x), what is the value of f(-5)? help plez

guajiro [1.7K]

Answer:

Step-by-step explanation:

f(x)=½(8-2x)

Let x = -5

f(-5)=½(8-2* (-5))

=½(8+10)

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2 years ago

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In stage 2 of a rocket's takeoff, the speed of the rocket increases at a rate of 4.3% per minute. The speed of the rocket at the

Sveta_85 [38]

The correct option is: B. $25000=5000(1.043)^t$

Explanation

The general form of growth equation is: $A=P(1+r)^t$ , where A = final amount, P = initial amount, r = growth rate in decimal form and t = time duration

Here, the speed of the rocket at the beginning was 5,000 kilometers per hour and at the end will be 25,000 kilometers per hour. The speed increases at a rate of 4.3% per minute.

That means, $A= 25000 , P= 5000, r= 4.3\% = 0.043$

Now plugging these values into the above equation, we will get......

$25000=5000(1+0.043)^t\\ \\ 25000=5000(1.043)^t$

So, the equation that could be used to determine the time for the speed of the rocket to reach 25,000 kilometers per hour will be: $25000=5000(1.043)^t$

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2 years ago

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Please help. I’ll mark you as brainliest if correct

zysi [14]

Answer:

12 + -6i

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Step-by-step explanation:

( -4 + 3i ) ( -3 - 2i )

-4 * -3 = 12

3i * -2i= -6i

12 + -6i

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2 years ago

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jolli1 [7]

What is your question?

5 0

3 years ago