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3 years ago

Determine whether each expression is a polynomial. If it is a polynomial, state the degree of the polynomial.

Mathematics

1 answer:

tiny-mole [99]3 years ago

7 0

<span>Expression x^2-9 </span>has two terms, so is a polynominal. Degree = 2

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Xavier has $23.50 in his savings account. He deposits $35 every week. His mother also deposits $20 into the account every time

maria [59]

Answer:

Part A: a coefficient is either 20 or 35, both work. A variable is c or w, again either work. The constant is 23.50.

Part B: He will have $503.50

Part C: The coefficient would change, because the amount per car changes, not the amount of cars.

Step-by-step explanation:

A coefficient goes in front of the variable (which is the letter, usually shown as x). The constant is a number with no variable attached.

We replace c with 20, and w with 12, giving us 20(3)+35(12)+23.50 for our equation. After multiplying, we come up with 60+420+23.50, which equals 503.50.

8 0

2 years ago

A rectangle has an area of 0.24 of a square. What are some possibility for the length and width of the rectangle? Tell why

VLD [36.1K]

Answer:

<h3>The possibilities of length and width of the rectangle are </h3><h3>x=1, y=0.24;</h3><h3>x=0.5, y=0.48;</h3><h3>x=0.25, y=0.96;</h3><h3>x=2, y=0.12</h3>

Step-by-step explanation:

Given that the area is 0.24 square meter

The area of a rectangle is given by

$Area=length\times width$ square units

Let x be the length and y be the width.

Since the area is 0.24 square meter, we have the equation:

$Area=x\times y = 0.24$ , with x and y measures in meters

If we want to know some possibilities of x and y, we can assume a value for one of them, and then calculate the other one using the equation.

Now choosing some values for "x", we have:

Put x = 1

$1\times y = 0.24$

∴ y = 0.24

Now put x = 0.5 we get

$0.5\times y = 0.24$

∴ y = 0.48

Put x = 0.25

$0.25\times y = 0.24$

∴ y = 0.96

Put x = 2

$2\times y = 0.24$

∴ y = 0.12

8 0

2 years ago

Read 2 more answers

10 + 14x - 18 = 16x + 22 -8x

Grace [21]

If looking for x:

x=5

8 0

2 years ago

Read 2 more answers

Select the correct answer. What are the solutions of this quadratic equation?

ipn [44]

I believe your answer is C.

5 0

2 years ago

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Simiplify without using absolute value bars, Solve for |x +7| for x>=7

Pavlova-9 [17]

9514 1404 393

Answer:

x +7

Step-by-step explanation:

The argument of the absolute value function is positive for any x > -7. The required domain is a subset of that, so the absolute value function does not change its argument.

|x+7| for x ≥ 7 is x +7

5 0

2 years ago