2 years ago

Help! asap! algebra 2

Mathematics

1 answer:

Rudik [331]2 years ago

5 0

We can subtract the function that represents the cost in 2000 from the function that represents the cost in 1990.

Doing this gives us $(-20t^{2}+1000)-(-10t^{2}+1500)=\boxed{-10t^{2}-500}$

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53x52 step by step plzzz

Zigmanuir [339]

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2 years ago

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3 years ago

Find the values of x and y

Grace [21]

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Step-by-step explanation:

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3 years ago

I keep forgetting the process for this: 3(x^2 + 5)(x^2 - 5) Can someone help?

Snezhnost [94]

Answer:

see explanation

Step-by-step explanation:

Note that (x² + 5)(x² - 5) are the factors of a difference of squares

a² - b² = (a + b)(a - b)

with a = x² and b = 5, hence

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3 years ago

Two circles have radii of 4 units and 6 units. What is the radius of a circle whose area is equal to the sum of the areas of the

Bumek [7]

Answer:

Step-by-step explanation:

We that the area of a circle is Pi times r^2 where r is the radius

Let A be the area of the first circle and S the area of the second one and T the total one

A=4^2× Pi

S=6^2× Pi

T = Pi( 4^2 +6^2)

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52 is the radius square

So r = root square 52 = 2 root square 13

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3 years ago