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2 years ago

Which is the correct operation for 45-3x5

1 answer:

6 0

You want to use PEMDAS for this.
P= arenthesis ( )
E= xponents a²
M= ultiply ×
D= ivide ÷
A= dd +
S= ubtract -

What you want to do is go in order and ask yourself as you go.
Are there any Parenthesis? No
Are there any Exponents? No
Is there any Multiplication? Yes
Is there any Division? No
Is there any Addition? No
Is there any Subtraction? Yes
Thats when you stop and you multiply what you have in the PEMDAS. Top to bottom. 3x5 which gives you 15. Now you equation is 45-15. Thats when you subtract and you get your answer which is 30.

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The first step when dividing 9m2 − 4m − 6 by 3m is shown. Which could be the next step? 3m − − 3m − − 3m − − 3m − −

Agata [3.3K]

Given:

Consider the below picture attached with this question.

The given expression is:

$\dfrac{9m^2}{3m}-\dfrac{4m}{3m}-\dfrac{6}{3m}$

To find:

The next step.

Solution:

We have,

$\dfrac{9m^2}{3m}-\dfrac{4m}{3m}-\dfrac{6}{3m}$

Cancel out the common factors.

$=3m-\dfrac{4}{3}-\dfrac{2}{m}$

Therefore, the correct option is D.

8 0

3 years ago

P(x) = 2x² + 1 What is the inverse for p(x)?

Serhud [2]

Answer:

$P^{-1} (x)=\sqrt{\frac{x-1}{2} }$

Step-by-step explanation:

1. $P(x)=2x^{2} +1$

2. $y=2x^{2} +1$

3. $x=2y^{2} +1$

4. $2y^{2} =x-1$

5. $y^{2} =\frac{x-1}{2}$

6. $y=\sqrt{\frac{x-1}{2} }$

7. $P^{-1} (x)=\sqrt{\frac{x-1}{2} }$

4 0

3 years ago

Need HELP!!! For all, I’m truly confused

Nataliya [291]

Answer:

Step-by-step explanation:

The figures dont have enough letters to explain step by step all the exercises.

Bread 1:

The horizontal lines are parallels so both angles must be the same

2x + 21 = 4x - 17

21 + 17 = 4x - 2x

38 = 2x

x = 19

Bread 2:

Angles sum 180°

3y - 5 + 2y - 25 = 180

5y - 30 = 180

5y = 180 +30

5y = 210

y = 42

Bread 3:

Angle ABC is the same as the other 2, since x = 19

ABC = 2x + 21

ABC = 2 * 19 + 21

ABC = 59

Bread 4:

Angle ABC is the same as 3y - 5, y = 42

ABC = 3y - 5

ABC = 3 * 42 -5

ABC = 121

Bread 5:

Angles must be the same

5x - 14 = 2x + 13

5x - 2x = 13 + 14

3x = 27

x = 9

Bread 6:

Angle ABC = 5x - 14 , x = 9

ABC = 5 * 9 - 14

ABC = 31

If you need to understand why the angles must be the same just comment and I will give you more details

8 0

2 years ago

there are 18 boys and 24 girls who want to participate in the trivia challenge. if each team must have the same number of boys a

Fittoniya [83]

The greatest number of teams that can enter will be 6.

The number of girls will be =2

The number of boys will be = 4

Teams within an enterprise are groups of personnel all working below a shared designation or for a shared goal. groups may be shaped in a selection of structures relying on the desires of the commercial enterprise.

working together saves time and presents each person with more strength to focus on getting the task done. with the aid of getting your employees to work as a team, you may improve the productivity levels of all and sundry present. you may actualize innovative thoughts with greater efficiency, making the importance of teamwork clean.

The reason for a group is to determine how a completely unique set of people can use their abilities to perform an intention at a particular time. A clear team reason can assist motivate individuals into motion. a few advantages of understanding the purpose of a crew include growing recognition and inclusion.

The number of girls = is 18.

Number of boys = 24

Based on the information given, in order to find the greatest number of teams that can enter, we have to find the highest common factors for both boys and girls. This will be:

Factors of 18 = 1, 2, 3, 6, 9, 18.

Factors of 24 = 1, 2, 3, 4, 6, 8, 12, 16, 24.

Highest common factor = 6

Therefore, the greatest number will be 6.

The number of girls will be =2

The number of boys will be = 4

Learn more about teams here brainly.com/question/4311312

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3 0

1 year ago

Simplify CLEAR Step By Step Explanation Please. Will Mark Brainliest

siniylev [52]

Answer:

1/x+5

Step-by-step explanation:

1. Rewrite 3x as a difference

x-2/x^2 + 5x-2 - 10

2. Factor out x from the equation, then factor out -2.

x-2/ x+(x+5) - 2(x+5)

3. Factor out x+5 from the expression

x-2/ (x+5)(x-2)

4. Reduce the fraction with x-2

x-2 / (x+5) x-2

1/x+5

8 0

2 years ago