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3 years ago

Simplify. remove grouping sbols and combine like terms

Mathematics

1 answer:

harina [27]3 years ago

3 0

Answer:

$5a^2+12b^2-40b$

Step-by-step explanation:

First distribute the -4 to the 2b and -3b. This leaves you with $5a^2-8b+12b(b+4)$

Now you can distribute the 12b to b and +4. This leaves you with $5a^2-8b+12b^2+48b$

Now you can combine your like terms leaving you with $5a^2+12b^2-40b$ .

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A 2-column table has 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is la

andriy [413]

Answer:

Initial value is $\frac{1}{2}$ .

Step-by-step explanation:

Let us assume that the exponential function is $f(x) = a(b)^{x}$ ...... (1)

Now, the point $(0,\frac{1}{2})$ will satisfy the above equation.

Now, this point on the graph of the exponential function will be sufficient to find the initial value of the function (1) i.e. a.

Now, putting the value x = 0 and $y = \frac{1}{2}$ in the equation (1) we get, $f(x) = a(b)^{x}$

⇒ $\frac{1}{2} = a(b)^{0} = a$

⇒ $a = \frac{1}{2}$ (Answer)

10 0

3 years ago

Read 2 more answers

A bag contains x counters. 7 of the counters are blue. Sam takes at random a counter from the bag and does not replace it. Jill

defon

Answer:

0.2x² - 0.2x - 42 = 0

Step-by-step explanation:

Number of counters = x

Number of blue counters =7

Probability, p = required outcome / Total possible outcomes

P(Sam picks blue ) : = 7/x

P(jill picks blue) = 6/(x - 1)

P(Sam picks blue) * P(Jill picks blue) = 0.2

7/x * 6/(x-1) = 0.2

42/x(x - 1) = 0.2

42 / x² - x= 0.2

42 = 0.2(x² - x)

42 = 0.2x² - 0.2x

0.2x² - 0.2x - 42

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2 years ago

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Yuri [45]

Answer:

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Step-by-step explanation:

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4 years ago