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3 years ago

6

X+3x4–21x2 23 Determine the polynomial

1 answer:

Goryan [66]3 years ago

6 0

Answer:

(TAKE THE MINUS OUT)

Step-by-step explanation:

The first thing he has to do is take that "minus" sign through the parentheses containing the second polynomial. Some students find it helpful to put a " 1 " in front of the parentheses, to help them keep track of the minus sign. Here's what the subtraction looks like, when working horizontally.

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ohaa [14]

your answer is 15m+6n

6 0

3 years ago

Read 2 more answers

Evaluate the expression.<br><br> 2.15(3)2=

Elina [12.6K]

Answer:

12.9

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Solve the equation. Round to the nearest hundredth. Show work.

muminat

Answer:

Final answer is approx x=0.16.

Step-by-step explanation:

Given equation is $2.8\times 13^{4x} +4.8 = 19.3$

Now we need to solve equation $2.8\times 13^{4x} +4.8 = 19.3$ and round to the nearest hundredth.

$2.8\times 13^{4x} +4.8 = 19.3$

$2.8\times 13^{4x} = 19.3-4.8$

$2.8\times 13^{4x} = 14.5$

$13^{4x} = \frac{14.5}{2.8}$

$13^{4x} = 5.17857142857$

$\log(13^{4x}) = \log(5.17857142857)$

$4x \log(13) = \log(5.17857142857)$

$4x = \frac{\log(5.17857142857)}{\log\left(13\right)}$

$4x = 0.641154659628$

$x = \frac{0.641154659628}{4}$

$x = 0.160288664907$

Round to the nearest hundredth.

Hence final answer is approx x=0.16.

4 0

3 years ago

Tiana has $70 in an account. The interest rate is 5% compounded annually.

Alekssandra [29.7K]

Answer:

73 dollars and 50 cents

Step-by-step explanation:

Initial Deposit:

70

Years to Save:

1

Estimated Rate of Return

5

Compound Frequency:

Annually

Earned Interest

$3.50

Total Balance

$73.50

Hope this helps!

8 0

2 years ago

The width-to-height ratio of a certain computer monitor

Mnenie [13.5K]

<h2>24 inches</h2>

Step-by-step explanation:

It is given that $\frac{\textbf{width of computer monitor}}{\textbf{height of computer monitor}}=\frac{16}{9}$

It is given that $\text{height of computer monitor}=13.5$

$\text{width of computer monitor} =\text{height of computer monitor}\times \frac{16}{9}$

$\text{width of computer monitor}=13.5\times \frac{16}{9} =\frac{216}{9} =24$

Hence the required width in inches is 24.

5 0

3 years ago