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4 years ago

Please help me on this algebra 1 question, i dont understand it

Mathematics

1 answer:

Y_Kistochka [10]4 years ago

3 0

I believe the answer they're looking for is 3, but it's hard to tell, because there's a negative sign before the box, and a polynomial cannot contain a negative exponent.

Ignoring that sign though, the answer should be 3 because Polynomials typically have a term with each degree up to the maximum of the polynomial.

In this polynomial, there is a term with degree 4, degree 2, and degree 0, but none for degree 3 or 1. Because of this, the only acceptable answer is 3.

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Clare is painting some doors that are all the same size. She used 2 liters of paint to cover 1 3/5 doors. How many liters of pai

Ainat [17]

Answer:

7/5 or 1.4

Step-by-step explanation

2 - 3/5 = 7/5

7 0

3 years ago

Read 2 more answers

The formula is:<br> Y= mx+b

Aliun [14]

<h2> Question 1</h2>

Answer:

The graph is showing the story.

Step-by-step explanation:

Victoria is on the 13th page of the book, she reads 3 pages after every next hour.

After 1st hour she has read = 13 + 3 = 16

As she reads 3 pages after every next hour.

After 2nd hour she has read = 16 + 3 = 19

After 3rd hour she has read = 19 + 3 = 22

After 4th hour she has read = 22 + 3 = 25

After 5th hour she has read = 25 + 3 = 28

So the graph is showing this phenomena.

<h2> Question 2</h2>

Answer:

The equation that would generate this graph and table would be:

$y=\:3x+13$

Step-by-step explanation:

Given the slope-intercept form of the equation of the line

$y=\:mx+b$

Taking any two points

(1, 16)

(2, 19)

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(1,\:16\right),\:\left(x_2,\:y_2\right)=\left(2,\:19\right)$

$m=\frac{19-16}{2-1}$

$m=3$

Plugging any point, let say (1, 16), and m = 3 in the slope-intercept form to find the value of b (y-intercept).

$y=\:mx+b$

$16=\:3\left(1\right)+b$

$\mathrm{Switch\:sides}$

$3\left(1\right)+b=16$

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a$

$3\cdot \:1+b=16$

$\mathrm{Multiply\:the\:numbers:}\:3\cdot \:1=3$

$3+b=16$

$\mathrm{Subtract\:}3\mathrm{\:from\:both\:sides}$

$3+b-3=16-3$

$b=13$

Thus the equation that would generate this graph and table is:

$y=\:mx+b$

m = 3

b = 13

$y=\:3x+13$

Therefore, the equation that would generate this graph and table would be:

$y=\:3x+13$

6 0

4 years ago

Which equation in rectangular form describes the parametric equations x=2-3 cos t and y=1+4 sin t?

liraira [26]

Answer:

The parametric equations represents an ellipse by the rectangular equation $\frac{(x-2)^{2}}{9} + \frac{(y-1)^{2}}{16} = 1$ .

Step-by-step explanation:

We proceed to use the following trigonometric identity to derive an expression in rectangular form:

$\cos^{2} t + \sin^{2} t = 1$ (1)

Where:

$\cos t = \frac{2-x}{3}$ and $\sin t = \frac{y-1}{4}$

Then, we expand the expression as follows:

$\frac{(x-2)^{2}}{9} + \frac{(y-1)^{2}}{16} = 1$ (2)

The parametric equations represents an ellipse by the rectangular equation $\frac{(x-2)^{2}}{9} + \frac{(y-1)^{2}}{16} = 1$ .

3 0

3 years ago

What should be done to both sides of the equation in order to solve w - 9 1/2 = 15?

Effectus [21]

Answer:

Solve for

by simplifying both sides of the equation, then isolating the variable.

Exact Form:

Decimal Form:

24.5

Mixed Number Form:

8 0

4 years ago

What is the area of a regular hexagon with a distance from its center to a vertex of 1 cm? (Hint: A regular hexagon can be divid

devlian [24]

<h3>Answer:</h3><h3>Exact area = $\frac{3}{2}\sqrt{3}$ square cm</h3><h3>Approximate area = 2.598 square cm</h3>

=================================================

Work Shown:

s = side length of equilateral triangle = 1 cm

A = area of equilateral triangle with side length 's'

$A = \frac{\sqrt{3}}{4}*s^2$

$A = \frac{\sqrt{3}}{4}*1^2$

$A = \frac{\sqrt{3}}{4}$

This is just one of the 6 equilateral triangles (see diagram below)

Multiply by 6 to get the area of all 6 equilateral triangles, or the entire hexagonal area

$6*A = 6*\frac{\sqrt{3}}{4}$

$6A = \frac{3\sqrt{3}}{2}$

$6A \approx 2.598$

4 0

3 years ago