2 years ago

Please help with these algebra questions!!!! I will give brainliest

Mathematics

1 answer:

vitfil [10]2 years ago

3 0

Answer:

the answer is negative numbers for 6

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Troyanec [42]

Answer:

A) -9/2

B) 9/4

C) -9/2, same as A)

Step-by-step explanation:

We are given that $I=\int_0^3 x^3-4x dx=9/4$ . We use the properties of integrals to write the new integrals in terms of I.

A) $\int_0^3 8x-2x^3 dx=\int_0^3 -2(x^3-4x) dx=-2\int_0^3 x^3-4x dx=-2I=-9/2$ . We have used that ∫cf dx=c∫f dx.

B) $\int_3^0 4x - x^3 dx=-\int_0^3 (4x-x^3) dx=\int_0^3-(4x-x^3) dx=\int_0^3 x^3-4x dx=I=9/4$ . Here we used that reversing the limits of integration changes the sign of the integral.

C) It's the same integral in A)

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Ulani is constructing a triangle that has sides measuring 12 cm and 28 cm. Which measurements could be the length of the third s

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The answer is 24 cm and 38 cm

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The last statement is true

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because plus the numbers together

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Number A is 5/10 (one half)

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