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3 years ago

HELP ASAP (POLYNOMIALS) True or False: 2x2 + 3x - 4 is equivalent to 4 + 3x - 2x2

Mathematics

1 answer:

Valentin [98]3 years ago

6 0

Answer:

False.! Nope that's not the final

Step-by-step explanation:

Let's simplify step-by-step.

2x(2)+3x−4

=4x+3x+−4

Combine Like Terms:

=4x+3x+−4

=(4x+3x)+(−4)

=7x+−4

Answer:

=7x−4

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The answer is D

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3 years ago

martin can run 6 miles in 60 minutes. He wants to run in either one of two upcoming races, a 4 mile race or a 12 mile race. At h

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Answer:

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Step-by-step explanation:

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3 years ago

Which is the correct algebraic expression after combining like terms?

Free_Kalibri [48]

Answer:

b) 3cd+3 1/3c-3d

Step-by-step explanation:

It can work well to factor the variables out so you can see the coefficients more easily:

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3 years ago

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Dmitry_Shevchenko [17]

Answer:

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Step-by-step explanation:

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3 years ago

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3.8*10 to the 9th power divided by 4*10 to the 2nd power

user100 [1]

Answer:

$9.5\times 10^{6}$

Step-by-step explanation:

1. Divide the coefficients and the exponentials separately

$\dfrac{3.8 \times 10^{9}}{4 \times 10^{2}} = \dfrac{3.8}{4} \times \dfrac{10^{9}}{10^{2}}$

2. Divide the coefficients

$\dfrac{3.8}{4} = 0.95$

3. Divide the exponentials

Subtract the exponent in the denominator from the exponent in the numerator.

$\dfrac{10^{9}}{10^{2}} = 10^{(9 - 2)} = 10 ^{7}$

4. Re-join the new coefficient and the new exponential

$\dfrac{3.8 \times 10^{9}}{4 \times 10^{2}} = 0.95 \times 10^{7}$

5. Put the new number into standard form

The number before the power of 10 must be greater than or equal to one and less than 10.

Multiply the answer by 10/10.

$(0.95 \times 10^{7}) \times \dfrac{10}{10} = (0.95\times10) \times \dfrac{10^{7}}{10} = \mathbf{9.5\times 10^{6}}$

5 0

3 years ago