I NEED THE ANSWER PLEASE I DONT UNDERSTAND I JUST NEED THE ANSWER FOR 23,21,18

Answers

Answer 1

Answer:

Step-by-step explanation:

follow the picture uploaded. everythinh has been solves systematically

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A chess player moves a knight from the location (3,2) to (5,1) on a chessboard. If the bottom-left squared is labeled (1, 1), the translation made is? If the player moves the knight from (5, 1) to (6, 3), the translation made is?

Answers

1. A chess player moves a knight from the location (3,2) to (5,1) on a chessboard.This means that

(3,2)→(5,1).

the translation rule is

(x,y)→(x+2,y-1) or in words 2 units right and 1 unit down.

2. If the player moves the knight from (5, 1) to (6, 3), then the translation is

(5,1)→(6,3)

and the rule is

(x,y)→(x+1,y+2).

This is translation 1 unit right and 2 units up.

First translation: 2 units to the right and 1 unit down.

Second translation:1 unit to the right and 2 units up

Using FOIL, solve (t + 2bs^2) (2t-3bs^2) please show all the steps.

Answers

foil
first
outer
inner
last
example if you had
(x+y)(z+t)
first x times z
outer x time t
inner y times z
last y times t

so

FOIL
(t+2bs^2)(2t-3bs^2)
FIRST (t times 2t=2t^2)
Outer (t times -3bs^2=-3tbs^2)
Inner (2bs^2 times 2t=4tbs^2)
Last (2bs^2 times -3bs^2=-6b^2s^4)

now add
2t^2-3tbs^2+4tbs^2-6b^2s^4
add like terms (-3tbs^2+4tbs^2=1tbs^2=tbs^2)
2t^2+tbs^2-6b^2s^4

2t^2+-6b^2s^4+4bs^2t-3bs^2t

so 2t^2-6b^2s^4+bs^2t is your answer

Every week, Hector works 20 hours and earns $210.00. He earns a constant amount of money per hour.Part A
Write an equation that can be used to determine the number of hours, h, Hector works given the number of weeks, W.
Enter your equation in the space provided

Part B
Write an equation that can be used to determine Hector's earnings, in dollars, m, for h hours of work.
Enter your equation in the space provided.

Answers

Answer:

A). h = 20 w

B). m = 10.5h

Step-by-step explanation:

Part (A).

Let the total number of hours Hector worked = h

And total number of weeks worked by Hector = w

Therefore, number of hours Hector worked in a week = $(h)/(w)$

Since, total number of hours worked in a week = 20

Equation will be,

20 = $(h)/(w)$

h = 20w

Part (B).

Per hour earning of Hector = $\frac{\text{Total earning}}{\text{Number of hours worked}}=(210)/(20)$

$(m)/(h)=10.5$

m = 10.5h

How can you check if drew the right graph 1. by looking at the slope
2. looking at the intercepts
3. by taking random points on your graph by using this equation 2x+6y=18

Answers

If [ 2x + 6y = 18 ] was the equation you were supposed to graph, then #3 is the way to go. If it was some other equation, then you would have to slog through BOTH #1 and #2 tobe sure.

In triangle ABC, angle a equals 25°, angle C equals 55°, and a B equals 60

Answers

Answer:

7250

Step-by-step explanation:

This is like the pythagorean theorem. So you add A^2,B^2, and C^2. So 25^2 + 60^2 + 55^2. 625 + 3600 + 3025. That equals to 7250.

What are the zeros of the polynomial function: f(x) = x3 + x2 – 6x ? ...?

Answers

The solution to the problem is as follows:

　
x³ + x² − 6x = 0
x (x² + x − 6) = 0
x (x − 2) (x + 3) = 0
x = 0, 2, −3

f(x) = 2x³ + 5x² + 6x − 4
f(−x) = −2x³ + 5x² − 6x − 4

Let's look at signs only and how many sign changes there are:
f(x) = + + + −
1 sign change ----> 1 positive root
f(−x) = − + − −
2 sign changes ----> 2 or 0 negative roots

Min. number of real roots = 1 ----> max. number of complex roots = 2
Max. number of real roots = 3 ----> min. number of complex roots = 0

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