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3 years ago

Classify each polynomial based on the number of terms it contains.

Mathematics

1 answer:

cricket20 [7]3 years ago

3 0

Answer:

see explanation

Step-by-step explanation:

A monomial is an expression with one term

A binomial is an expression with 2 terms

A trinomial is an expression with 3 terms

Thus

- 2x² - x + 3.5 ← has 3 terms, hence trinomial

10xyz³ ← has 1 term, hence monomial

- x²y² + 2y ← has 2 terms, hence binomial

8x² + 0.25 ← has 2 terms, hence binomial

x³ $y^{4}$ + 2x²y - 3x ← has 3 terms, hence trinomial

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rosijanka [135]

Answer:

y = x^2 - 2x - 8

Step-by-step explanation:

First we can put it into vertex form, the vertex is at (1, -9)

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y = 1 (x - 1)^2 - 9

Then distribute:

y = x^2 - 2x + 1 - 9

y = x^2 - 2x - 8

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3 years ago

Which is the quadratic variation equation for the relationship?

Ksivusya [100]

$y=kx^2 \\ \\
y=36 \hbox{ when } x=3 \\
36=k \times 3^2 \\
36=k \times 9 \\
k=4 \\ \\
\boxed{y=4x^2} \Leftarrow \hbox{answer B}$

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3 years ago

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vodomira [7]

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Step-by-step explanation:

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3 years ago

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3. What amount of money is necessary to be invested at 5% simple interest to yield $320 in interest after 4 years?

Simora [160]

Answer:

$Amount = \$1920$

Step-by-step explanation:

Given

$Interest =\$320$

$Rate = 5\%$

$Years = 4$

Required

Determine the invested amount

First, we need to determine the Principal

This is calculated as:

$Interest = Principal * Rate * Time$

Solve for Principal

$Principal = \frac{Interest}{Rate * Time}$

$Principal = \frac{\$320}{0.05 * 4}$

$Principal = \frac{\$320}{0.2}$

$Principal = \$1600$

Add the principal to the interest

$Amount = Principal + Interest$

$Amount = \$1600 + \$320$

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