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2 years ago

If both the length and width of a rectangle are doubled, how is the area of the rectangle changed?

Mathematics

1 answer:

Law Incorporation [45]2 years ago

7 0

Answer:

B) The area is four times larger

Step-by-step explanation:

$A=LW$

$2*2*A=2L2W$

$4A=2L2W$

Therefore, the area is four times larger

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Write the general polynomial p(x) if its only zeros are 1 4 and -3 with multiplicites 3 2 and 1 respectively what is the degree

kompoz [17]

Answer:

The 6th degree polynomial is $p(x) = (x-1)^3(x-4)^2(x+3)$

Step-by-step explanation:

Zeros of a function:

Given a polynomial f(x), this polynomial has roots $x_{1}, x_{2}, x_{n}$ such that it can be written as: $a(x - x_{1})*(x - x_{2})*...*(x-x_n)$ , in which a is the leading coefficient.

Zero 1 with multiplicity 3.

$p(x) = (x-1)^3$

Zero 4 with multiplicity 2.

Considering also the zero 1 with multiplicity 3.

$p(x) = (x-1)^3(x-4)^2$

Zero -3 with multiplicity 1:

Considering the previous zeros:

$p(x) = (x-1)^3(x-4)^2(x-(-3)) = (x-1)^3(x-4)^2(x+3)$

Degree is the multiplication of the multiplicities of the zeros. So

3*2*1 = 6

The 6th degree polynomial is $p(x) = (x-1)^3(x-4)^2(x+3)$

8 0

2 years ago

What is the y-intercept of the function f(x) = 2x – 3 + 6? <br> Round to two decimal places.

valina [46]

Y-intercept is where the graph intercepts/crosses the y-axis. So where x = 0
f(0) = 2(0) - 3 + 6
f(0) = 0 + 3
f(0) = 3
y intercept is 3
two decimal places, just add zeros
= 3.00

6 0

3 years ago

28 (A.3A) Determine the slope of the line that

Dvinal [7]

The slope would be -5, I will explain if you would like me to

8 0

3 years ago

Read 2 more answers

What is the slope of the line on the graph?

netineya [11]

Answer: i don't know you have to figure it out yourself duh.

Step-by-step explanation: This is none of your beeswax