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Naddika [18.5K]

4 years ago

9

Write 4x2(–2x2 + 5x3) in standard form. Then classify it by degree and number of terms.

1 answer:

umka2103 [35]4 years ago

3 0

$20x^5-8x^4$ polynomial of the 5th degree, with two terms.

Distribute 4x^2(–2x^2 + 5x^3) to get –8x^2 + 20x^5. Reorder in standard form 20x^5-8x^4. 5 is the highest exponent so it is the 5th degree, there are two terms because terms are separated by a plus or minus.

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What is cos2Ø=? and tan2Ø=?

Talja [164]

cos is 1.57

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4 years ago

X+17= -12<br><br> Please ASAP!

sdas [7]

Answer:

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Step-by-step explanation:

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3 years ago

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Martin has 2 5/8 pounds of ground beef. He wants to divide the beef into equal sized portions to put into his freezer. The porti

Licemer1 [7]

Answer:

a) 7 equal sized pieces of 3/8 pounds

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b) 3 equal sized pieces of 7/8 pounds

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Step-by-step explanation:

Martin has 2 5/8 pounds of ground beef.

2 5/8 = 21/8 pounds = 2.625 pounds

Because 21 is divisible by 3 and 7, we can arrange the ground beef in two configurations

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b) 3 equal sized pieces of 7/8 pounds

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3 years ago

Given the function f(x) = -2c+cx-x^2, and f^-1(5) = -1, find c

AnnZ [28]

Answer:

$c=-2$

Step-by-step explanation:

We are given the function:

$f(x) = -2c + cx - x^2$

And that:

$\displaystyle f^{-1} (5) = -1$

And we want to determine the value of <em>c</em>.

Recall that by definition of inverse functions:

$\displaystyle \text{If } f(a) = b, \text{ then } f^{-1}(b) = a$

So, since f⁻¹(5) = -1, then f(-1) = 5.

Substitute:

$f(-1) = 5 = -2c + c(-1) - (-1)^2$

Simplify:

$5 = -2c - c - (1)$

Combine like terms:

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4 years ago

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