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Triss [41]
3 years ago
5

PLEASE HELP!!!!! DUE IN 5!!!!

Mathematics
1 answer:
inessss [21]3 years ago
7 0

Answer:

c

Step-by-step explanation:

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Which operation should you perform first when you simplify 175 - ( 8 + 45 divided by 3) times 7?
KatRina [158]

Answer:

Step-by-step explanation:

175-(8+45÷3)x7 s

start with what's inside the parenthesis

(8+45÷3)  ⇒ (8+15) ⇒(23)

175-(23)x7

then do multiplication

23x7

161

175-161

14

final answer is 14

7 0
2 years ago
1)
almond37 [142]

Radio Barn : 200 + .15 x  x = the weekly sales

Woofer: 300 + .10x

set them equal to find when they are them same

200 + .15x = 300 + .10x

subtract .10x from both sides

200 +.15x -.10x = 300 + .10x-.10x

200 +.05x = 300

subtract 200 from each side

200+.05x -200 = 300-200

.05x = 100

divide each side by .05

.05x/.05 = 100/.05

x =2000

The 2 jobs pay the same when the weekly sales are 2000 dollars


2.  {x - 5 = -y}

{2y - 10 = -2x}

x-5 = -y

add 5 to each side

x = -y+5

multiply each side by -2

-2x = 2y -10

the 2 equations are the same, it has an infinite number of solutions

The system is dependent  since the 2 equations are the same line


3.  {2x = y - 7}

{4x - 2y - 14 = 0}

2x = y-7

subtract y-7 from each side

2x - (y-7) = 0

2x -y+7 =0

multiply by 2

4x -2y +14 =0

subtract the two equations

4x -2y +14 =0

4x - 2y - 14 = 0

---------------------------

               28 = 0

since this cannot happen   the lines will never cross ( parallel lines)

the system is inconsistent

5 0
3 years ago
Explain why multiplying two irrational numbers could result in either an irrational number or a rational number.
Nimfa-mama [501]
Because if you multiply 2 different irrational numbers (like the following)
\sqrt{3} \times  \sqrt{17}
You will get an irrational answer.

BUT
if you multiply the same square root (which are both irrational, you get a rational number)

\sqrt{3}  \times  \sqrt{3}  = 3
7 0
3 years ago
James and Amy play 3 more games.They have played the same number of games as last week .Fill in the blanks to make the equation
Fiesta28 [93]

Question is Incomplete; Complete question is given below;

James and Amy played 12 games of checkers last week. This week they played 7 games on Monday and 2 games on Wednesday.James and Amy play 3 more games. They have played the same number of games as last week. Fill in the blanks to make the equation true. Use +,-, or =. 12_7_2_3 Explain how you chose the symbols.

Answer:

12<u> = </u>7<u> + </u>2<u> + </u>3

Step-by-step explanation:

Given:

Number of games played last week = 12

Number of games played on Monday this week = 7

Number of games played on Wednesday this week = 2

Also given:

James and Amy play 3 more games.

So Number of games played more = 3

We need to fill in the blanks 12 __ 7__2__3 with signs '+', '-','='.

Solution:

It is given that they have played the same number of games as last week.

So we can say that;

Number of games played last week is equal to Number of games played on Monday this week plus Number of games played on Wednesday this week plus Number of games played more.

framing in equation form we get;

12 = 7 + 2+3

Hence we have fill the blanks as 12<u> = </u>7<u> + </u>2<u> + </u>3.

8 0
3 years ago
Derivative of Y=cos^2(3x)
Black_prince [1.1K]
The derivative is -6sin(3x)
4 0
3 years ago
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